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2
AUTHORS
2
AUTHORS
|
@ -6,7 +6,7 @@ For the win32 port:
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Jason Erickson <jerickso@indian.com>
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Additional Help:
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Peter Fein contributed a logging connection/cursor class that even if it
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was not used directly heavily influenced the implementation currently in
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psycopg2.extras.
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|
|
4
LICENSE
4
LICENSE
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@ -47,8 +47,8 @@ psycopg/microprotocol*.{h,c}:
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|||
claim that you wrote the original software. If you use this
|
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software in a product, an acknowledgment in the product documentation
|
||||
would be appreciated but is not required.
|
||||
|
||||
|
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2. Altered source versions must be plainly marked as such, and must not
|
||||
be misrepresented as being the original software.
|
||||
|
||||
|
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3. This notice may not be removed or altered from any source distribution.
|
||||
|
|
|
@ -10,7 +10,7 @@
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|||
the terms and conditions of version 3 of the GNU General Public
|
||||
License, supplemented by the additional permissions listed below.
|
||||
|
||||
0. Additional Definitions.
|
||||
0. Additional Definitions.
|
||||
|
||||
As used herein, "this License" refers to version 3 of the GNU Lesser
|
||||
General Public License, and the "GNU GPL" refers to version 3 of the GNU
|
||||
|
@ -111,7 +111,7 @@ the following:
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|||
a copy of the Library already present on the user's computer
|
||||
system, and (b) will operate properly with a modified version
|
||||
of the Library that is interface-compatible with the Linked
|
||||
Version.
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||||
Version.
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e) Provide Installation Information, but only if you would otherwise
|
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be required to provide such information under section 6 of the
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|
|
22
doc/SUCCESS
22
doc/SUCCESS
|
@ -1,10 +1,10 @@
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From: Jack Moffitt <jack@xiph.org>
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To: Psycopg Mailing List <psycopg@lists.initd.org>
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Subject: Re: [Psycopg] preparing for 1.0
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Date: 22 Oct 2001 11:16:21 -0600
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Date: 22 Oct 2001 11:16:21 -0600
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www.vorbis.com is serving from 5-10k pages per day with psycopg serving
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data for most of that.
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www.vorbis.com is serving from 5-10k pages per day with psycopg serving
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data for most of that.
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I plan to use it for several of our other sites, so that number will
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increase.
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@ -19,7 +19,7 @@ jack.
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From: Yury Don <gercon@vpcit.ru>
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To: Psycopg Mailing List <psycopg@lists.initd.org>
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Subject: Re: [Psycopg] preparing for 1.0
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Date: 23 Oct 2001 09:53:11 +0600
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Date: 23 Oct 2001 09:53:11 +0600
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We use psycopg and psycopg zope adapter since fisrt public
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release (it seems version 0.4). Now it works on 3 our sites and in intranet
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@ -32,7 +32,7 @@ to solve the problem, even thouth my knowledge of c were poor.
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BTW, segfault with dictfetchall on particular data set (see [Psycopg]
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dictfetchXXX() problems) disappeared in 0.99.8pre2.
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--
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--
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Best regards,
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Yury Don
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@ -42,7 +42,7 @@ To: Federico Di Gregorio <fog@debian.org>
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Cc: Psycopg Mailing List <psycopg@lists.initd.org>
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Subject: Re: [Psycopg] preparing for 1.0
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Date: 23 Oct 2001 08:25:52 -0400
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The US Govt Department of Labor's Office of Disability Employment
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Policy's DisabilityDirect website is run on zope and zpsycopg.
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@ -50,7 +50,7 @@ Policy's DisabilityDirect website is run on zope and zpsycopg.
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From: Scott Leerssen <sleerssen@racemi.com>
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To: Federico Di Gregorio <fog@debian.org>
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Subject: Re: [Psycopg] preparing for 1.0
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Date: 23 Oct 2001 09:56:10 -0400
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Date: 23 Oct 2001 09:56:10 -0400
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Racemi's load management software infrastructure uses psycopg to handle
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complex server allocation decisions, plus storage and access of
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@ -66,10 +66,10 @@ From: Andre Schubert <andre.schubert@geyer.kabeljournal.de>
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To: Federico Di Gregorio <fog@debian.org>
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Cc: Psycopg Mailing List <psycopg@lists.initd.org>
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Subject: Re: [Psycopg] preparing for 1.0
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Date: 23 Oct 2001 11:46:07 +0200
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Date: 23 Oct 2001 11:46:07 +0200
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i have changed the psycopg version to 0.99.8pre2 on all devel-machines
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and all segfaults are gone. after my holiday i wil change to 0.99.8pre2
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and all segfaults are gone. after my holiday i wil change to 0.99.8pre2
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or 1.0 on our production-server.
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this server contains several web-sites which are all connected to
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postgres over ZPsycopgDA.
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@ -81,7 +81,7 @@ From: Fred Wilson Horch <fhorch@ecoaccess.org>
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To: <psycopg@lists.initd.org>
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Subject: [Psycopg] Success story for psycopg
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Date: 23 Oct 2001 10:59:17 -0400
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Due to various quirks of PyGreSQL and PoPy, EcoAccess has been looking for
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a reliable, fast and relatively bug-free Python-PostgreSQL interface for
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our project.
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@ -98,7 +98,7 @@ reports and feature requests, and we're looking forward to using psycopg
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as the Python interface for additional database-backed web applications.
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Keep up the good work!
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--
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--
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Fred Wilson Horch mailto:fhorch@ecoaccess.org
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Executive Director, EcoAccess http://ecoaccess.org/
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294
doc/pep-0249.txt
294
doc/pep-0249.txt
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@ -9,15 +9,15 @@ Replaces: 248
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Release-Date: 07 Apr 1999
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Introduction
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This API has been defined to encourage similarity between the
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Python modules that are used to access databases. By doing this,
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we hope to achieve a consistency leading to more easily understood
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modules, code that is generally more portable across databases,
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and a broader reach of database connectivity from Python.
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|
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|
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The interface specification consists of several sections:
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* Module Interface
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* Connection Objects
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* Cursor Objects
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|
@ -25,7 +25,7 @@ Introduction
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|||
* Type Objects and Constructors
|
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* Implementation Hints
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* Major Changes from 1.0 to 2.0
|
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|
||||
|
||||
Comments and questions about this specification may be directed
|
||||
to the SIG for Database Interfacing with Python
|
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(db-sig@python.org).
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||||
|
@ -41,7 +41,7 @@ Introduction
|
|||
basis for new interfaces.
|
||||
|
||||
Module Interface
|
||||
|
||||
|
||||
Access to the database is made available through connection
|
||||
objects. The module must provide the following constructor for
|
||||
these:
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|
@ -51,17 +51,17 @@ Module Interface
|
|||
Constructor for creating a connection to the database.
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Returns a Connection Object. It takes a number of
|
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parameters which are database dependent. [1]
|
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|
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|
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These module globals must be defined:
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|
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apilevel
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|
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String constant stating the supported DB API level.
|
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Currently only the strings '1.0' and '2.0' are allowed.
|
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|
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|
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If not given, a DB-API 1.0 level interface should be
|
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assumed.
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||||
|
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|
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threadsafety
|
||||
|
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Integer constant stating the level of thread safety the
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|
@ -81,33 +81,33 @@ Module Interface
|
|||
or other external sources that are beyond your control.
|
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|
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paramstyle
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|
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|
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String constant stating the type of parameter marker
|
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formatting expected by the interface. Possible values are
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[2]:
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||||
|
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'qmark' Question mark style,
|
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'qmark' Question mark style,
|
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e.g. '...WHERE name=?'
|
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'numeric' Numeric, positional style,
|
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'numeric' Numeric, positional style,
|
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e.g. '...WHERE name=:1'
|
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'named' Named style,
|
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'named' Named style,
|
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e.g. '...WHERE name=:name'
|
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'format' ANSI C printf format codes,
|
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'format' ANSI C printf format codes,
|
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e.g. '...WHERE name=%s'
|
||||
'pyformat' Python extended format codes,
|
||||
'pyformat' Python extended format codes,
|
||||
e.g. '...WHERE name=%(name)s'
|
||||
|
||||
The module should make all error information available through
|
||||
these exceptions or subclasses thereof:
|
||||
|
||||
Warning
|
||||
|
||||
Warning
|
||||
|
||||
Exception raised for important warnings like data
|
||||
truncations while inserting, etc. It must be a subclass of
|
||||
the Python StandardError (defined in the module
|
||||
exceptions).
|
||||
|
||||
Error
|
||||
|
||||
Error
|
||||
|
||||
Exception that is the base class of all other error
|
||||
exceptions. You can use this to catch all errors with one
|
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|
@ -115,7 +115,7 @@ Module Interface
|
|||
errors and thus should not use this class as base. It must
|
||||
be a subclass of the Python StandardError (defined in the
|
||||
module exceptions).
|
||||
|
||||
|
||||
InterfaceError
|
||||
|
||||
Exception raised for errors that are related to the
|
||||
|
@ -126,50 +126,50 @@ Module Interface
|
|||
|
||||
Exception raised for errors that are related to the
|
||||
database. It must be a subclass of Error.
|
||||
|
||||
|
||||
DataError
|
||||
|
||||
|
||||
Exception raised for errors that are due to problems with
|
||||
the processed data like division by zero, numeric value
|
||||
out of range, etc. It must be a subclass of DatabaseError.
|
||||
|
||||
|
||||
OperationalError
|
||||
|
||||
|
||||
Exception raised for errors that are related to the
|
||||
database's operation and not necessarily under the control
|
||||
of the programmer, e.g. an unexpected disconnect occurs,
|
||||
the data source name is not found, a transaction could not
|
||||
be processed, a memory allocation error occurred during
|
||||
processing, etc. It must be a subclass of DatabaseError.
|
||||
|
||||
IntegrityError
|
||||
|
||||
|
||||
IntegrityError
|
||||
|
||||
Exception raised when the relational integrity of the
|
||||
database is affected, e.g. a foreign key check fails. It
|
||||
must be a subclass of DatabaseError.
|
||||
|
||||
InternalError
|
||||
|
||||
|
||||
InternalError
|
||||
|
||||
Exception raised when the database encounters an internal
|
||||
error, e.g. the cursor is not valid anymore, the
|
||||
transaction is out of sync, etc. It must be a subclass of
|
||||
DatabaseError.
|
||||
|
||||
|
||||
ProgrammingError
|
||||
|
||||
|
||||
Exception raised for programming errors, e.g. table not
|
||||
found or already exists, syntax error in the SQL
|
||||
statement, wrong number of parameters specified, etc. It
|
||||
must be a subclass of DatabaseError.
|
||||
|
||||
|
||||
NotSupportedError
|
||||
|
||||
|
||||
Exception raised in case a method or database API was used
|
||||
which is not supported by the database, e.g. requesting a
|
||||
.rollback() on a connection that does not support
|
||||
transaction or has transactions turned off. It must be a
|
||||
subclass of DatabaseError.
|
||||
|
||||
|
||||
This is the exception inheritance layout:
|
||||
|
||||
StandardError
|
||||
|
@ -183,17 +183,17 @@ Module Interface
|
|||
|__InternalError
|
||||
|__ProgrammingError
|
||||
|__NotSupportedError
|
||||
|
||||
|
||||
Note: The values of these exceptions are not defined. They should
|
||||
give the user a fairly good idea of what went wrong, though.
|
||||
|
||||
|
||||
|
||||
Connection Objects
|
||||
|
||||
Connection Objects should respond to the following methods:
|
||||
|
||||
.close()
|
||||
|
||||
.close()
|
||||
|
||||
Close the connection now (rather than whenever __del__ is
|
||||
called). The connection will be unusable from this point
|
||||
forward; an Error (or subclass) exception will be raised
|
||||
|
@ -203,52 +203,52 @@ Connection Objects
|
|||
committing the changes first will cause an implicit
|
||||
rollback to be performed.
|
||||
|
||||
|
||||
|
||||
.commit()
|
||||
|
||||
|
||||
Commit any pending transaction to the database. Note that
|
||||
if the database supports an auto-commit feature, this must
|
||||
be initially off. An interface method may be provided to
|
||||
turn it back on.
|
||||
|
||||
|
||||
Database modules that do not support transactions should
|
||||
implement this method with void functionality.
|
||||
|
||||
.rollback()
|
||||
|
||||
|
||||
.rollback()
|
||||
|
||||
This method is optional since not all databases provide
|
||||
transaction support. [3]
|
||||
|
||||
|
||||
In case a database does provide transactions this method
|
||||
causes the the database to roll back to the start of any
|
||||
pending transaction. Closing a connection without
|
||||
committing the changes first will cause an implicit
|
||||
rollback to be performed.
|
||||
|
||||
|
||||
.cursor()
|
||||
|
||||
|
||||
Return a new Cursor Object using the connection. If the
|
||||
database does not provide a direct cursor concept, the
|
||||
module will have to emulate cursors using other means to
|
||||
the extent needed by this specification. [4]
|
||||
|
||||
|
||||
|
||||
Cursor Objects
|
||||
|
||||
These objects represent a database cursor, which is used to
|
||||
manage the context of a fetch operation. Cursors created from
|
||||
manage the context of a fetch operation. Cursors created from
|
||||
the same connection are not isolated, i.e., any changes
|
||||
done to the database by a cursor are immediately visible by the
|
||||
other cursors. Cursors created from different connections can
|
||||
or can not be isolated, depending on how the transaction support
|
||||
is implemented (see also the connection's rollback() and commit()
|
||||
is implemented (see also the connection's rollback() and commit()
|
||||
methods.)
|
||||
|
||||
|
||||
Cursor Objects should respond to the following methods and
|
||||
attributes:
|
||||
|
||||
.description
|
||||
|
||||
.description
|
||||
|
||||
This read-only attribute is a sequence of 7-item
|
||||
sequences. Each of these sequences contains information
|
||||
describing one result column: (name, type_code,
|
||||
|
@ -260,17 +260,17 @@ Cursor Objects
|
|||
This attribute will be None for operations that
|
||||
do not return rows or if the cursor has not had an
|
||||
operation invoked via the executeXXX() method yet.
|
||||
|
||||
|
||||
The type_code can be interpreted by comparing it to the
|
||||
Type Objects specified in the section below.
|
||||
|
||||
.rowcount
|
||||
|
||||
|
||||
.rowcount
|
||||
|
||||
This read-only attribute specifies the number of rows that
|
||||
the last executeXXX() produced (for DQL statements like
|
||||
'select') or affected (for DML statements like 'update' or
|
||||
'insert').
|
||||
|
||||
|
||||
The attribute is -1 in case no executeXXX() has been
|
||||
performed on the cursor or the rowcount of the last
|
||||
operation is not determinable by the interface. [7]
|
||||
|
@ -278,96 +278,96 @@ Cursor Objects
|
|||
Note: Future versions of the DB API specification could
|
||||
redefine the latter case to have the object return None
|
||||
instead of -1.
|
||||
|
||||
|
||||
.callproc(procname[,parameters])
|
||||
|
||||
|
||||
(This method is optional since not all databases provide
|
||||
stored procedures. [3])
|
||||
|
||||
|
||||
Call a stored database procedure with the given name. The
|
||||
sequence of parameters must contain one entry for each
|
||||
argument that the procedure expects. The result of the
|
||||
call is returned as modified copy of the input
|
||||
sequence. Input parameters are left untouched, output and
|
||||
input/output parameters replaced with possibly new values.
|
||||
|
||||
|
||||
The procedure may also provide a result set as
|
||||
output. This must then be made available through the
|
||||
standard fetchXXX() methods.
|
||||
|
||||
|
||||
.close()
|
||||
|
||||
|
||||
Close the cursor now (rather than whenever __del__ is
|
||||
called). The cursor will be unusable from this point
|
||||
forward; an Error (or subclass) exception will be raised
|
||||
if any operation is attempted with the cursor.
|
||||
|
||||
.execute(operation[,parameters])
|
||||
|
||||
|
||||
.execute(operation[,parameters])
|
||||
|
||||
Prepare and execute a database operation (query or
|
||||
command). Parameters may be provided as sequence or
|
||||
mapping and will be bound to variables in the operation.
|
||||
Variables are specified in a database-specific notation
|
||||
(see the module's paramstyle attribute for details). [5]
|
||||
|
||||
|
||||
A reference to the operation will be retained by the
|
||||
cursor. If the same operation object is passed in again,
|
||||
then the cursor can optimize its behavior. This is most
|
||||
effective for algorithms where the same operation is used,
|
||||
but different parameters are bound to it (many times).
|
||||
|
||||
|
||||
For maximum efficiency when reusing an operation, it is
|
||||
best to use the setinputsizes() method to specify the
|
||||
parameter types and sizes ahead of time. It is legal for
|
||||
a parameter to not match the predefined information; the
|
||||
implementation should compensate, possibly with a loss of
|
||||
efficiency.
|
||||
|
||||
|
||||
The parameters may also be specified as list of tuples to
|
||||
e.g. insert multiple rows in a single operation, but this
|
||||
kind of usage is depreciated: executemany() should be used
|
||||
instead.
|
||||
|
||||
|
||||
Return values are not defined.
|
||||
|
||||
.executemany(operation,seq_of_parameters)
|
||||
|
||||
|
||||
.executemany(operation,seq_of_parameters)
|
||||
|
||||
Prepare a database operation (query or command) and then
|
||||
execute it against all parameter sequences or mappings
|
||||
found in the sequence seq_of_parameters.
|
||||
|
||||
|
||||
Modules are free to implement this method using multiple
|
||||
calls to the execute() method or by using array operations
|
||||
to have the database process the sequence as a whole in
|
||||
one call.
|
||||
|
||||
|
||||
Use of this method for an operation which produces one or
|
||||
more result sets constitutes undefined behavior, and the
|
||||
implementation is permitted (but not required) to raise
|
||||
implementation is permitted (but not required) to raise
|
||||
an exception when it detects that a result set has been
|
||||
created by an invocation of the operation.
|
||||
|
||||
|
||||
The same comments as for execute() also apply accordingly
|
||||
to this method.
|
||||
|
||||
|
||||
Return values are not defined.
|
||||
|
||||
.fetchone()
|
||||
|
||||
|
||||
.fetchone()
|
||||
|
||||
Fetch the next row of a query result set, returning a
|
||||
single sequence, or None when no more data is
|
||||
available. [6]
|
||||
|
||||
|
||||
An Error (or subclass) exception is raised if the previous
|
||||
call to executeXXX() did not produce any result set or no
|
||||
call was issued yet.
|
||||
|
||||
fetchmany([size=cursor.arraysize])
|
||||
|
||||
|
||||
Fetch the next set of rows of a query result, returning a
|
||||
sequence of sequences (e.g. a list of tuples). An empty
|
||||
sequence is returned when no more rows are available.
|
||||
|
||||
|
||||
The number of rows to fetch per call is specified by the
|
||||
parameter. If it is not given, the cursor's arraysize
|
||||
determines the number of rows to be fetched. The method
|
||||
|
@ -375,62 +375,62 @@ Cursor Objects
|
|||
parameter. If this is not possible due to the specified
|
||||
number of rows not being available, fewer rows may be
|
||||
returned.
|
||||
|
||||
|
||||
An Error (or subclass) exception is raised if the previous
|
||||
call to executeXXX() did not produce any result set or no
|
||||
call was issued yet.
|
||||
|
||||
|
||||
Note there are performance considerations involved with
|
||||
the size parameter. For optimal performance, it is
|
||||
usually best to use the arraysize attribute. If the size
|
||||
parameter is used, then it is best for it to retain the
|
||||
same value from one fetchmany() call to the next.
|
||||
|
||||
.fetchall()
|
||||
|
||||
.fetchall()
|
||||
|
||||
Fetch all (remaining) rows of a query result, returning
|
||||
them as a sequence of sequences (e.g. a list of tuples).
|
||||
Note that the cursor's arraysize attribute can affect the
|
||||
performance of this operation.
|
||||
|
||||
|
||||
An Error (or subclass) exception is raised if the previous
|
||||
call to executeXXX() did not produce any result set or no
|
||||
call was issued yet.
|
||||
|
||||
.nextset()
|
||||
|
||||
|
||||
.nextset()
|
||||
|
||||
(This method is optional since not all databases support
|
||||
multiple result sets. [3])
|
||||
|
||||
|
||||
This method will make the cursor skip to the next
|
||||
available set, discarding any remaining rows from the
|
||||
current set.
|
||||
|
||||
|
||||
If there are no more sets, the method returns
|
||||
None. Otherwise, it returns a true value and subsequent
|
||||
calls to the fetch methods will return rows from the next
|
||||
result set.
|
||||
|
||||
|
||||
An Error (or subclass) exception is raised if the previous
|
||||
call to executeXXX() did not produce any result set or no
|
||||
call was issued yet.
|
||||
|
||||
.arraysize
|
||||
|
||||
|
||||
This read/write attribute specifies the number of rows to
|
||||
fetch at a time with fetchmany(). It defaults to 1 meaning
|
||||
to fetch a single row at a time.
|
||||
|
||||
|
||||
Implementations must observe this value with respect to
|
||||
the fetchmany() method, but are free to interact with the
|
||||
database a single row at a time. It may also be used in
|
||||
the implementation of executemany().
|
||||
|
||||
|
||||
.setinputsizes(sizes)
|
||||
|
||||
|
||||
This can be used before a call to executeXXX() to
|
||||
predefine memory areas for the operation's parameters.
|
||||
|
||||
|
||||
sizes is specified as a sequence -- one item for each
|
||||
input parameter. The item should be a Type Object that
|
||||
corresponds to the input that will be used, or it should
|
||||
|
@ -438,27 +438,27 @@ Cursor Objects
|
|||
parameter. If the item is None, then no predefined memory
|
||||
area will be reserved for that column (this is useful to
|
||||
avoid predefined areas for large inputs).
|
||||
|
||||
|
||||
This method would be used before the executeXXX() method
|
||||
is invoked.
|
||||
|
||||
|
||||
Implementations are free to have this method do nothing
|
||||
and users are free to not use it.
|
||||
|
||||
|
||||
.setoutputsize(size[,column])
|
||||
|
||||
|
||||
Set a column buffer size for fetches of large columns
|
||||
(e.g. LONGs, BLOBs, etc.). The column is specified as an
|
||||
index into the result sequence. Not specifying the column
|
||||
will set the default size for all large columns in the
|
||||
cursor.
|
||||
|
||||
|
||||
This method would be used before the executeXXX() method
|
||||
is invoked.
|
||||
|
||||
|
||||
Implementations are free to have this method do nothing
|
||||
and users are free to not use it.
|
||||
|
||||
|
||||
|
||||
Type Objects and Constructors
|
||||
|
||||
|
@ -485,15 +485,15 @@ Type Objects and Constructors
|
|||
Implementation Hints below for details).
|
||||
|
||||
The module exports the following constructors and singletons:
|
||||
|
||||
|
||||
Date(year,month,day)
|
||||
|
||||
This function constructs an object holding a date value.
|
||||
|
||||
|
||||
Time(hour,minute,second)
|
||||
|
||||
This function constructs an object holding a time value.
|
||||
|
||||
|
||||
Timestamp(year,month,day,hour,minute,second)
|
||||
|
||||
This function constructs an object holding a time stamp
|
||||
|
@ -507,12 +507,12 @@ Type Objects and Constructors
|
|||
module for details).
|
||||
|
||||
TimeFromTicks(ticks)
|
||||
|
||||
|
||||
This function constructs an object holding a time value
|
||||
from the given ticks value (number of seconds since the
|
||||
epoch; see the documentation of the standard Python time
|
||||
module for details).
|
||||
|
||||
|
||||
TimestampFromTicks(ticks)
|
||||
|
||||
This function constructs an object holding a time stamp
|
||||
|
@ -521,10 +521,10 @@ Type Objects and Constructors
|
|||
time module for details).
|
||||
|
||||
Binary(string)
|
||||
|
||||
|
||||
This function constructs an object capable of holding a
|
||||
binary (long) string value.
|
||||
|
||||
|
||||
|
||||
STRING
|
||||
|
||||
|
@ -535,22 +535,22 @@ Type Objects and Constructors
|
|||
|
||||
This type object is used to describe (long) binary columns
|
||||
in a database (e.g. LONG, RAW, BLOBs).
|
||||
|
||||
|
||||
NUMBER
|
||||
|
||||
This type object is used to describe numeric columns in a
|
||||
database.
|
||||
|
||||
DATETIME
|
||||
|
||||
|
||||
This type object is used to describe date/time columns in
|
||||
a database.
|
||||
|
||||
|
||||
ROWID
|
||||
|
||||
|
||||
This type object is used to describe the "Row ID" column
|
||||
in a database.
|
||||
|
||||
|
||||
SQL NULL values are represented by the Python None singleton on
|
||||
input and output.
|
||||
|
||||
|
@ -563,7 +563,7 @@ Implementation Hints for Module Authors
|
|||
* The preferred object types for the date/time objects are those
|
||||
defined in the mxDateTime package. It provides all necessary
|
||||
constructors and methods both at Python and C level.
|
||||
|
||||
|
||||
* The preferred object type for Binary objects are the
|
||||
buffer types available in standard Python starting with
|
||||
version 1.5.2. Please see the Python documentation for
|
||||
|
@ -577,7 +577,7 @@ Implementation Hints for Module Authors
|
|||
processing. However, it should be noted that this does not
|
||||
expose a C API like mxDateTime does which means that integration
|
||||
with C based database modules is more difficult.
|
||||
|
||||
|
||||
* Here is a sample implementation of the Unix ticks based
|
||||
constructors for date/time delegating work to the generic
|
||||
constructors:
|
||||
|
@ -645,7 +645,7 @@ Implementation Hints for Module Authors
|
|||
|
||||
class NotSupportedError(DatabaseError):
|
||||
pass
|
||||
|
||||
|
||||
In C you can use the PyErr_NewException(fullname,
|
||||
base, NULL) API to create the exception objects.
|
||||
|
||||
|
@ -760,7 +760,7 @@ Optional DB API Extensions
|
|||
Warning Message: "DB-API extension connection.messages used"
|
||||
|
||||
Cursor Method .next()
|
||||
|
||||
|
||||
Return the next row from the currently executing SQL statement
|
||||
using the same semantics as .fetchone(). A StopIteration
|
||||
exception is raised when the result set is exhausted for Python
|
||||
|
@ -790,13 +790,13 @@ Optional DB API Extensions
|
|||
|
||||
Warning Message: "DB-API extension cursor.lastrowid used"
|
||||
|
||||
|
||||
|
||||
Optional Error Handling Extension
|
||||
|
||||
The core DB API specification only introduces a set of exceptions
|
||||
which can be raised to report errors to the user. In some cases,
|
||||
exceptions may be too disruptive for the flow of a program or even
|
||||
render execution impossible.
|
||||
render execution impossible.
|
||||
|
||||
For these cases and in order to simplify error handling when
|
||||
dealing with databases, database module authors may choose to
|
||||
|
@ -806,7 +806,7 @@ Optional Error Handling Extension
|
|||
Cursor/Connection Attribute .errorhandler
|
||||
|
||||
Read/write attribute which references an error handler to call
|
||||
in case an error condition is met.
|
||||
in case an error condition is met.
|
||||
|
||||
The handler must be a Python callable taking the following
|
||||
arguments: errorhandler(connection, cursor, errorclass,
|
||||
|
@ -836,7 +836,7 @@ Frequently Asked Questions
|
|||
specification. This section covers some of the issues people
|
||||
sometimes have with the specification.
|
||||
|
||||
Question:
|
||||
Question:
|
||||
|
||||
How can I construct a dictionary out of the tuples returned by
|
||||
.fetchxxx():
|
||||
|
@ -855,7 +855,7 @@ Frequently Asked Questions
|
|||
* Some databases don't support case-sensitive column names or
|
||||
auto-convert them to all lowercase or all uppercase
|
||||
characters.
|
||||
|
||||
|
||||
* Columns in the result set which are generated by the query
|
||||
(e.g. using SQL functions) don't map to table column names
|
||||
and databases usually generate names for these columns in a
|
||||
|
@ -872,9 +872,9 @@ Major Changes from Version 1.0 to Version 2.0
|
|||
compared to the 1.0 version. Because some of these changes will
|
||||
cause existing DB API 1.0 based scripts to break, the major
|
||||
version number was adjusted to reflect this change.
|
||||
|
||||
|
||||
These are the most important changes from 1.0 to 2.0:
|
||||
|
||||
|
||||
* The need for a separate dbi module was dropped and the
|
||||
functionality merged into the module interface itself.
|
||||
|
||||
|
@ -886,10 +886,10 @@ Major Changes from Version 1.0 to Version 2.0
|
|||
* New constants (apilevel, threadlevel, paramstyle) and
|
||||
methods (executemany, nextset) were added to provide better
|
||||
database bindings.
|
||||
|
||||
|
||||
* The semantics of .callproc() needed to call stored
|
||||
procedures are now clearly defined.
|
||||
|
||||
|
||||
* The definition of the .execute() return value changed.
|
||||
Previously, the return value was based on the SQL statement
|
||||
type (which was hard to implement right) -- it is undefined
|
||||
|
@ -898,7 +898,7 @@ Major Changes from Version 1.0 to Version 2.0
|
|||
values, but these are no longer mandated by the
|
||||
specification and should be considered database interface
|
||||
dependent.
|
||||
|
||||
|
||||
* Class based exceptions were incorporated into the
|
||||
specification. Module implementors are free to extend the
|
||||
exception layout defined in this specification by
|
||||
|
@ -916,10 +916,10 @@ Open Issues
|
|||
questions that were left open in the 1.0 version, there are still
|
||||
some remaining issues which should be addressed in future
|
||||
versions:
|
||||
|
||||
|
||||
* Define a useful return value for .nextset() for the case where
|
||||
a new result set is available.
|
||||
|
||||
|
||||
* Create a fixed point numeric type for use as loss-less
|
||||
monetary and decimal interchange format.
|
||||
|
||||
|
@ -929,17 +929,17 @@ Footnotes
|
|||
[1] As a guideline the connection constructor parameters should be
|
||||
implemented as keyword parameters for more intuitive use and
|
||||
follow this order of parameters:
|
||||
|
||||
|
||||
dsn Data source name as string
|
||||
user User name as string (optional)
|
||||
password Password as string (optional)
|
||||
host Hostname (optional)
|
||||
database Database name (optional)
|
||||
|
||||
|
||||
E.g. a connect could look like this:
|
||||
|
||||
|
||||
connect(dsn='myhost:MYDB',user='guido',password='234$')
|
||||
|
||||
|
||||
[2] Module implementors should prefer 'numeric', 'named' or
|
||||
'pyformat' over the other formats because these offer more
|
||||
clarity and flexibility.
|
||||
|
@ -947,41 +947,41 @@ Footnotes
|
|||
[3] If the database does not support the functionality required
|
||||
by the method, the interface should throw an exception in
|
||||
case the method is used.
|
||||
|
||||
|
||||
The preferred approach is to not implement the method and
|
||||
thus have Python generate an AttributeError in
|
||||
case the method is requested. This allows the programmer to
|
||||
check for database capabilities using the standard
|
||||
hasattr() function.
|
||||
|
||||
|
||||
For some dynamically configured interfaces it may not be
|
||||
appropriate to require dynamically making the method
|
||||
available. These interfaces should then raise a
|
||||
NotSupportedError to indicate the non-ability
|
||||
to perform the roll back when the method is invoked.
|
||||
|
||||
|
||||
[4] a database interface may choose to support named cursors by
|
||||
allowing a string argument to the method. This feature is
|
||||
not part of the specification, since it complicates
|
||||
semantics of the .fetchXXX() methods.
|
||||
|
||||
|
||||
[5] The module will use the __getitem__ method of the parameters
|
||||
object to map either positions (integers) or names (strings)
|
||||
to parameter values. This allows for both sequences and
|
||||
mappings to be used as input.
|
||||
|
||||
|
||||
The term "bound" refers to the process of binding an input
|
||||
value to a database execution buffer. In practical terms,
|
||||
this means that the input value is directly used as a value
|
||||
in the operation. The client should not be required to
|
||||
"escape" the value so that it can be used -- the value
|
||||
should be equal to the actual database value.
|
||||
|
||||
|
||||
[6] Note that the interface may implement row fetching using
|
||||
arrays and other optimizations. It is not
|
||||
guaranteed that a call to this method will only move the
|
||||
associated cursor forward by one row.
|
||||
|
||||
|
||||
[7] The rowcount attribute may be coded in a way that updates
|
||||
its value dynamically. This can be useful for databases that
|
||||
return usable rowcount values only after the first call to
|
||||
|
|
|
@ -36,7 +36,7 @@ How to make a psycopg2 release
|
|||
- Create a signed tag with the content of the relevant NEWS bit and push it.
|
||||
E.g.::
|
||||
|
||||
$ git tag -a -s 2_7
|
||||
$ git tag -a -s 2_7
|
||||
|
||||
Psycopg 2.7 released
|
||||
|
||||
|
|
|
@ -188,7 +188,7 @@ representation into the previously defined `!Point` class:
|
|||
... return Point(float(m.group(1)), float(m.group(2)))
|
||||
... else:
|
||||
... raise InterfaceError("bad point representation: %r" % value)
|
||||
|
||||
|
||||
|
||||
In order to create a mapping from a PostgreSQL type (either standard or
|
||||
user-defined), its OID must be known. It can be retrieved either by the second
|
||||
|
|
|
@ -22,7 +22,7 @@ The ``connection`` class
|
|||
:ref:`thread-safety` for details.
|
||||
|
||||
.. method:: cursor(name=None, cursor_factory=None, scrollable=None, withhold=False)
|
||||
|
||||
|
||||
Return a new `cursor` object using the connection.
|
||||
|
||||
If *name* is specified, the returned cursor will be a :ref:`server
|
||||
|
@ -274,8 +274,8 @@ The ``connection`` class
|
|||
|
||||
.. __: http://jdbc.postgresql.org/
|
||||
|
||||
Xids returned by `!tpc_recover()` also have extra attributes
|
||||
`~psycopg2.extensions.Xid.prepared`, `~psycopg2.extensions.Xid.owner`,
|
||||
Xids returned by `!tpc_recover()` also have extra attributes
|
||||
`~psycopg2.extensions.Xid.prepared`, `~psycopg2.extensions.Xid.owner`,
|
||||
`~psycopg2.extensions.Xid.database` populated with the values read
|
||||
from the server.
|
||||
|
||||
|
@ -626,7 +626,7 @@ The ``connection`` class
|
|||
pair: Server; Parameters
|
||||
|
||||
.. method:: get_parameter_status(parameter)
|
||||
|
||||
|
||||
Look up a current parameter setting of the server.
|
||||
|
||||
Potential values for ``parameter`` are: ``server_version``,
|
||||
|
@ -708,7 +708,7 @@ The ``connection`` class
|
|||
The number is formed by converting the major, minor, and revision
|
||||
numbers into two-decimal-digit numbers and appending them together.
|
||||
For example, version 8.1.5 will be returned as ``80105``.
|
||||
|
||||
|
||||
.. seealso:: libpq docs for `PQserverVersion()`__ for details.
|
||||
|
||||
.. __: http://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQSERVERVERSION
|
||||
|
@ -722,7 +722,7 @@ The ``connection`` class
|
|||
.. attribute:: status
|
||||
|
||||
A read-only integer representing the status of the connection.
|
||||
Symbolic constants for the values are defined in the module
|
||||
Symbolic constants for the values are defined in the module
|
||||
`psycopg2.extensions`: see :ref:`connection-status-constants`
|
||||
for the available values.
|
||||
|
||||
|
|
|
@ -34,10 +34,10 @@ The ``cursor`` class
|
|||
many cursors from the same connection and should use each cursor from
|
||||
a single thread. See :ref:`thread-safety` for details.
|
||||
|
||||
|
||||
.. attribute:: description
|
||||
|
||||
This read-only attribute is a sequence of 7-item sequences.
|
||||
.. attribute:: description
|
||||
|
||||
This read-only attribute is a sequence of 7-item sequences.
|
||||
|
||||
Each of these sequences is a named tuple (a regular tuple if
|
||||
:func:`collections.namedtuple` is not available) containing information
|
||||
|
@ -65,7 +65,7 @@ The ``cursor`` class
|
|||
This attribute will be `!None` for operations that do not return rows
|
||||
or if the cursor has not had an operation invoked via the
|
||||
|execute*|_ methods yet.
|
||||
|
||||
|
||||
.. |pg_type| replace:: :sql:`pg_type`
|
||||
.. _pg_type: http://www.postgresql.org/docs/current/static/catalog-pg-type.html
|
||||
.. _PQgetlength: http://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQGETLENGTH
|
||||
|
@ -78,7 +78,7 @@ The ``cursor`` class
|
|||
regular tuples.
|
||||
|
||||
.. method:: close()
|
||||
|
||||
|
||||
Close the cursor now (rather than whenever `del` is executed).
|
||||
The cursor will be unusable from this point forward; an
|
||||
`~psycopg2.InterfaceError` will be raised if any operation is
|
||||
|
@ -88,7 +88,7 @@ The ``cursor`` class
|
|||
the method is automatically called at the end of the ``with``
|
||||
block.
|
||||
|
||||
|
||||
|
||||
.. attribute:: closed
|
||||
|
||||
Read-only boolean attribute: specifies if the cursor is closed
|
||||
|
@ -235,7 +235,7 @@ The ``cursor`` class
|
|||
The `mogrify()` method is a Psycopg extension to the |DBAPI|.
|
||||
|
||||
.. method:: setinputsizes(sizes)
|
||||
|
||||
|
||||
This method is exposed in compliance with the |DBAPI|. It currently
|
||||
does nothing but it is safe to call it.
|
||||
|
||||
|
@ -281,17 +281,17 @@ The ``cursor`` class
|
|||
>>> cur.execute("SELECT * FROM test WHERE id = %s", (3,))
|
||||
>>> cur.fetchone()
|
||||
(3, 42, 'bar')
|
||||
|
||||
|
||||
A `~psycopg2.ProgrammingError` is raised if the previous call
|
||||
to |execute*|_ did not produce any result set or no call was issued
|
||||
yet.
|
||||
|
||||
|
||||
.. method:: fetchmany([size=cursor.arraysize])
|
||||
|
||||
|
||||
Fetch the next set of rows of a query result, returning a list of
|
||||
tuples. An empty list is returned when no more rows are available.
|
||||
|
||||
|
||||
The number of rows to fetch per call is specified by the parameter.
|
||||
If it is not given, the cursor's `~cursor.arraysize` determines
|
||||
the number of rows to be fetched. The method should try to fetch as
|
||||
|
@ -309,7 +309,7 @@ The ``cursor`` class
|
|||
|
||||
A `~psycopg2.ProgrammingError` is raised if the previous call to
|
||||
|execute*|_ did not produce any result set or no call was issued yet.
|
||||
|
||||
|
||||
Note there are performance considerations involved with the size
|
||||
parameter. For optimal performance, it is usually best to use the
|
||||
`~cursor.arraysize` attribute. If the size parameter is used,
|
||||
|
@ -344,7 +344,7 @@ The ``cursor`` class
|
|||
`~psycopg2.ProgrammingError` is raised and the cursor position is
|
||||
not changed.
|
||||
|
||||
.. note::
|
||||
.. note::
|
||||
|
||||
According to the |DBAPI|_, the exception raised for a cursor out
|
||||
of bound should have been `!IndexError`. The best option is
|
||||
|
@ -364,7 +364,7 @@ The ``cursor`` class
|
|||
|
||||
|
||||
.. attribute:: arraysize
|
||||
|
||||
|
||||
This read/write attribute specifies the number of rows to fetch at a
|
||||
time with `~cursor.fetchmany()`. It defaults to 1 meaning to fetch
|
||||
a single row at a time.
|
||||
|
@ -378,20 +378,20 @@ The ``cursor`` class
|
|||
default is 2000.
|
||||
|
||||
.. versionadded:: 2.4
|
||||
|
||||
|
||||
.. extension::
|
||||
|
||||
The `itersize` attribute is a Psycopg extension to the |DBAPI|.
|
||||
|
||||
|
||||
.. attribute:: rowcount
|
||||
|
||||
.. attribute:: rowcount
|
||||
|
||||
This read-only attribute specifies the number of rows that the last
|
||||
|execute*|_ produced (for :abbr:`DQL (Data Query Language)` statements
|
||||
like :sql:`SELECT`) or affected (for
|
||||
like :sql:`SELECT`) or affected (for
|
||||
:abbr:`DML (Data Manipulation Language)` statements like :sql:`UPDATE`
|
||||
or :sql:`INSERT`).
|
||||
|
||||
|
||||
The attribute is -1 in case no |execute*| has been performed on
|
||||
the cursor or the row count of the last operation if it can't be
|
||||
determined by the interface.
|
||||
|
@ -400,7 +400,7 @@ The ``cursor`` class
|
|||
The |DBAPI|_ interface reserves to redefine the latter case to
|
||||
have the object return `!None` instead of -1 in future versions
|
||||
of the specification.
|
||||
|
||||
|
||||
|
||||
.. attribute:: rownumber
|
||||
|
||||
|
@ -457,7 +457,7 @@ The ``cursor`` class
|
|||
command:
|
||||
|
||||
>>> cur.execute("INSERT INTO test (num, data) VALUES (%s, %s)", (42, 'bar'))
|
||||
>>> cur.statusmessage
|
||||
>>> cur.statusmessage
|
||||
'INSERT 0 1'
|
||||
|
||||
.. extension::
|
||||
|
@ -490,13 +490,13 @@ The ``cursor`` class
|
|||
|
||||
|
||||
.. method:: nextset()
|
||||
|
||||
|
||||
This method is not supported (PostgreSQL does not have multiple data
|
||||
sets) and will raise a `~psycopg2.NotSupportedError` exception.
|
||||
|
||||
|
||||
.. method:: setoutputsize(size [, column])
|
||||
|
||||
|
||||
This method is exposed in compliance with the |DBAPI|. It currently
|
||||
does nothing but it is safe to call it.
|
||||
|
||||
|
|
|
@ -334,4 +334,3 @@ Psycopg raises *ImportError: cannot import name tz* on import in mod_wsgi / ASP,
|
|||
.. _egg: http://peak.telecommunity.com/DevCenter/PythonEggs
|
||||
.. __: http://stackoverflow.com/questions/2192323/what-is-the-python-egg-cache-python-egg-cache
|
||||
.. __: http://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGIPythonEggs
|
||||
|
||||
|
|
|
@ -65,4 +65,3 @@ Psycopg 2 is both Unicode and Python 3 friendly.
|
|||
**To Do items in the documentation**
|
||||
|
||||
.. todolist::
|
||||
|
||||
|
|
|
@ -57,8 +57,7 @@ be used.
|
|||
|
||||
.. autoclass:: PersistentConnectionPool
|
||||
|
||||
.. note::
|
||||
.. note::
|
||||
|
||||
This pool class is mostly designed to interact with Zope and probably
|
||||
not useful in generic applications.
|
||||
|
||||
|
|
|
@ -49,4 +49,3 @@ def setup(app):
|
|||
text=(visit_extension_node, depart_extension_node))
|
||||
|
||||
app.add_directive('extension', Extension)
|
||||
|
||||
|
|
|
@ -12,10 +12,9 @@ from docutils import nodes, utils
|
|||
from docutils.parsers.rst import roles
|
||||
|
||||
def sql_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
|
||||
text = utils.unescape(text)
|
||||
text = utils.unescape(text)
|
||||
options['classes'] = ['sql']
|
||||
return [nodes.literal(rawtext, text, **options)], []
|
||||
|
||||
|
||||
def setup(app):
|
||||
roles.register_local_role('sql', sql_role)
|
||||
|
||||
|
|
|
@ -56,4 +56,3 @@ def setup(app):
|
|||
app.add_config_value('ticket_remap_offset', None, 'env')
|
||||
app.add_role('ticket', ticket_role)
|
||||
app.add_role('tickets', ticket_role)
|
||||
|
||||
|
|
|
@ -57,7 +57,6 @@ def emit(basename, txt_dir):
|
|||
# some space between sections
|
||||
sys.stdout.write("\n\n")
|
||||
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
sys.exit(main())
|
||||
|
||||
|
|
|
@ -8,9 +8,8 @@
|
|||
This module holds two different tzinfo implementations that can be used as the
|
||||
`tzinfo` argument to `~datetime.datetime` constructors, directly passed to
|
||||
Psycopg functions or used to set the `cursor.tzinfo_factory` attribute in
|
||||
cursors.
|
||||
cursors.
|
||||
|
||||
.. autoclass:: psycopg2.tz.FixedOffsetTimezone
|
||||
|
||||
.. autoclass:: psycopg2.tz.LocalTimezone
|
||||
|
||||
|
|
|
@ -1017,4 +1017,3 @@ For further details see the documentation for the above methods.
|
|||
|
||||
.. __: http://www.opengroup.org/bookstore/catalog/c193.htm
|
||||
.. __: http://jdbc.postgresql.org/
|
||||
|
||||
|
|
|
@ -62,7 +62,7 @@ for row in curs.fetchall():
|
|||
open(new_name, 'wb').write(row[2])
|
||||
print "done"
|
||||
print " python type of image data is", type(row[2])
|
||||
|
||||
|
||||
# extract exactly the same data but using a binary cursor
|
||||
|
||||
print "Extracting the images using a binary cursor:"
|
||||
|
@ -78,7 +78,7 @@ for row in curs.fetchall():
|
|||
open(new_name, 'wb').write(row[0])
|
||||
print "done"
|
||||
print " python type of image data is", type(row[0])
|
||||
|
||||
|
||||
# this rollback is required because we can't drop a table with a binary cursor
|
||||
# declared and still open
|
||||
conn.rollback()
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
# copy_from.py -- example about copy_from
|
||||
# copy_from.py -- example about copy_from
|
||||
#
|
||||
# Copyright (C) 2002 Tom Jenkins <tjenkins@devis.com>
|
||||
# Copyright (C) 2005 Federico Di Gregorio <fog@initd.org>
|
||||
|
@ -172,6 +172,3 @@ conn.rollback()
|
|||
curs.execute("DROP TABLE test_copy")
|
||||
os.unlink('copy_from.txt')
|
||||
conn.commit()
|
||||
|
||||
|
||||
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
# copy_to.py -- example about copy_to
|
||||
# copy_to.py -- example about copy_to
|
||||
#
|
||||
# Copyright (C) 2002 Tom Jenkins <tjenkins@devis.com>
|
||||
# Copyright (C) 2005 Federico Di Gregorio <fog@initd.org>
|
||||
|
|
|
@ -49,7 +49,7 @@ class Cursor(psycopg2.extensions.cursor):
|
|||
if d is None:
|
||||
raise NoDataError("no more data")
|
||||
return d
|
||||
|
||||
|
||||
curs = conn.cursor(cursor_factory=Cursor)
|
||||
curs.execute("SELECT 1 AS foo")
|
||||
print("Result of fetchone():", curs.fetchone())
|
||||
|
|
|
@ -6,14 +6,14 @@ Mapping arbitrary objects to a PostgreSQL database with psycopg2
|
|||
- Problem
|
||||
|
||||
You need to store arbitrary objects in a PostgreSQL database without being
|
||||
intrusive for your classes (don't want inheritance from an 'Item' or
|
||||
intrusive for your classes (don't want inheritance from an 'Item' or
|
||||
'Persistent' object).
|
||||
|
||||
- Solution
|
||||
"""
|
||||
|
||||
from datetime import datetime
|
||||
|
||||
|
||||
import psycopg2
|
||||
from psycopg2.extensions import adapt, register_adapter
|
||||
|
||||
|
@ -24,7 +24,7 @@ except:
|
|||
seq.sort()
|
||||
return seq
|
||||
|
||||
# Here is the adapter for every object that we may ever need to
|
||||
# Here is the adapter for every object that we may ever need to
|
||||
# insert in the database. It receives the original object and does
|
||||
# its job on that instance
|
||||
|
||||
|
@ -33,7 +33,7 @@ class ObjectMapper(object):
|
|||
self.orig = orig
|
||||
self.tmp = {}
|
||||
self.items, self.fields = self._gatherState()
|
||||
|
||||
|
||||
def _gatherState(self):
|
||||
adaptee_name = self.orig.__class__.__name__
|
||||
fields = sorted([(field, getattr(self.orig, field))
|
||||
|
@ -42,19 +42,19 @@ class ObjectMapper(object):
|
|||
for item, value in fields:
|
||||
items.append(item)
|
||||
return items, fields
|
||||
|
||||
|
||||
def getTableName(self):
|
||||
return self.orig.__class__.__name__
|
||||
|
||||
|
||||
def getMappedValues(self):
|
||||
tmp = []
|
||||
for i in self.items:
|
||||
tmp.append("%%(%s)s"%i)
|
||||
return ", ".join(tmp)
|
||||
|
||||
|
||||
def getValuesDict(self):
|
||||
return dict(self.fields)
|
||||
|
||||
|
||||
def getFields(self):
|
||||
return self.items
|
||||
|
||||
|
@ -66,14 +66,14 @@ class ObjectMapper(object):
|
|||
return qry, self.getValuesDict()
|
||||
|
||||
# Here are the objects
|
||||
class Album(object):
|
||||
id = 0
|
||||
class Album(object):
|
||||
id = 0
|
||||
def __init__(self):
|
||||
self.creation_time = datetime.now()
|
||||
self.album_id = self.id
|
||||
Album.id = Album.id + 1
|
||||
self.binary_data = buffer('12312312312121')
|
||||
|
||||
|
||||
class Order(object):
|
||||
id = 0
|
||||
def __init__(self):
|
||||
|
@ -84,7 +84,7 @@ class Order(object):
|
|||
|
||||
register_adapter(Album, ObjectMapper)
|
||||
register_adapter(Order, ObjectMapper)
|
||||
|
||||
|
||||
# Describe what is needed to save on each object
|
||||
# This is actually just configuration, you can use xml with a parser if you
|
||||
# like to have plenty of wasted CPU cycles ;P.
|
||||
|
@ -92,7 +92,7 @@ register_adapter(Order, ObjectMapper)
|
|||
persistent_fields = {'Album': ['album_id', 'creation_time', 'binary_data'],
|
||||
'Order': ['order_id', 'items', 'price']
|
||||
}
|
||||
|
||||
|
||||
print adapt(Album()).generateInsert()
|
||||
print adapt(Album()).generateInsert()
|
||||
print adapt(Album()).generateInsert()
|
||||
|
@ -103,42 +103,42 @@ print adapt(Order()).generateInsert()
|
|||
"""
|
||||
- Discussion
|
||||
|
||||
Psycopg 2 has a great new feature: adaptation. The big thing about
|
||||
adaptation is that it enables the programmer to glue most of the
|
||||
Psycopg 2 has a great new feature: adaptation. The big thing about
|
||||
adaptation is that it enables the programmer to glue most of the
|
||||
code out there without many difficulties.
|
||||
|
||||
This recipe tries to focus attention on a way to generate SQL queries to
|
||||
insert completely new objects inside a database. As you can see objects do
|
||||
not know anything about the code that is handling them. We specify all the
|
||||
This recipe tries to focus attention on a way to generate SQL queries to
|
||||
insert completely new objects inside a database. As you can see objects do
|
||||
not know anything about the code that is handling them. We specify all the
|
||||
fields that we need for each object through the persistent_fields dict.
|
||||
|
||||
The most important lines of this recipe are:
|
||||
register_adapter(Album, ObjectMapper)
|
||||
register_adapter(Order, ObjectMapper)
|
||||
|
||||
In these lines we notify the system that when we call adapt with an Album instance
|
||||
as an argument we want it to istantiate ObjectMapper passing the Album instance
|
||||
In these lines we notify the system that when we call adapt with an Album instance
|
||||
as an argument we want it to istantiate ObjectMapper passing the Album instance
|
||||
as argument (self.orig in the ObjectMapper class).
|
||||
|
||||
The output is something like this (for each call to generateInsert):
|
||||
|
||||
('INSERT INTO Album (album_id, binary_data, creation_time) VALUES
|
||||
(%(album_id)s, %(binary_data)s, %(creation_time)s)',
|
||||
|
||||
{'binary_data': <read-only buffer for 0x402de070, ...>,
|
||||
'creation_time': datetime.datetime(2004, 9, 10, 20, 48, 29, 633728),
|
||||
|
||||
('INSERT INTO Album (album_id, binary_data, creation_time) VALUES
|
||||
(%(album_id)s, %(binary_data)s, %(creation_time)s)',
|
||||
|
||||
{'binary_data': <read-only buffer for 0x402de070, ...>,
|
||||
'creation_time': datetime.datetime(2004, 9, 10, 20, 48, 29, 633728),
|
||||
'album_id': 1}
|
||||
)
|
||||
|
||||
This is a tuple of {SQL_QUERY, FILLING_DICT}, and all the quoting/converting
|
||||
stuff (from python's datetime to postgres s and from python's buffer to
|
||||
postgres' blob) is handled with the same adaptation process hunder the hood
|
||||
This is a tuple of {SQL_QUERY, FILLING_DICT}, and all the quoting/converting
|
||||
stuff (from python's datetime to postgres s and from python's buffer to
|
||||
postgres' blob) is handled with the same adaptation process hunder the hood
|
||||
by psycopg2.
|
||||
|
||||
At last, just notice that ObjectMapper is working for both Album and Order
|
||||
instances without any glitches at all, and both classes could have easily been
|
||||
coming from closed source libraries or C coded ones (which are not easily
|
||||
modified), whereas a common pattern in todays ORMs or OODBs is to provide
|
||||
a basic 'Persistent' object that already knows how to store itself in the
|
||||
At last, just notice that ObjectMapper is working for both Album and Order
|
||||
instances without any glitches at all, and both classes could have easily been
|
||||
coming from closed source libraries or C coded ones (which are not easily
|
||||
modified), whereas a common pattern in todays ORMs or OODBs is to provide
|
||||
a basic 'Persistent' object that already knows how to store itself in the
|
||||
database.
|
||||
"""
|
||||
|
|
|
@ -29,7 +29,7 @@ print "Opening connection using dsn:", DSN
|
|||
conn = psycopg2.connect(DSN)
|
||||
print "Encoding for this connection is", conn.encoding
|
||||
|
||||
|
||||
|
||||
curs = conn.cursor(cursor_factory=psycopg2.extras.DictCursor)
|
||||
curs.execute("SELECT 1 AS foo, 'cip' AS bar, date(now()) as zot")
|
||||
print "Cursor's row factory is", curs.row_factory
|
||||
|
|
|
@ -38,7 +38,7 @@ encs.sort()
|
|||
for a, b in encs:
|
||||
print " ", a, "<->", b
|
||||
|
||||
print "Using STRING typecaster"
|
||||
print "Using STRING typecaster"
|
||||
print "Setting backend encoding to LATIN1 and executing queries:"
|
||||
conn.set_client_encoding('LATIN1')
|
||||
curs = conn.cursor()
|
||||
|
|
|
@ -34,7 +34,7 @@ a not-yet well defined protocol that we can call ISQLQuote:
|
|||
|
||||
def getbinary(self):
|
||||
"Returns a binary quoted string representing the bound variable."
|
||||
|
||||
|
||||
def getbuffer(self):
|
||||
"Returns the wrapped object itself."
|
||||
|
||||
|
@ -86,10 +86,10 @@ class AsIs(object):
|
|||
self.__obj = obj
|
||||
def getquoted(self):
|
||||
return self.__obj
|
||||
|
||||
|
||||
class SQL_IN(object):
|
||||
"""Adapt a tuple to an SQL quotable object."""
|
||||
|
||||
|
||||
def __init__(self, seq):
|
||||
self._seq = seq
|
||||
|
||||
|
@ -103,10 +103,10 @@ class SQL_IN(object):
|
|||
qobjs = [str(psycoadapt(o).getquoted()) for o in self._seq]
|
||||
|
||||
return '(' + ', '.join(qobjs) + ')'
|
||||
|
||||
|
||||
__str__ = getquoted
|
||||
|
||||
|
||||
|
||||
# add our new adapter class to psycopg list of adapters
|
||||
register_adapter(tuple, SQL_IN)
|
||||
register_adapter(float, AsIs)
|
||||
|
@ -117,7 +117,7 @@ register_adapter(int, AsIs)
|
|||
# conn = psycopg.connect("...")
|
||||
# curs = conn.cursor()
|
||||
# curs.execute("SELECT ...", (("this", "is", "the", "tuple"),))
|
||||
#
|
||||
#
|
||||
# but we have no connection to a database right now, so we just check
|
||||
# the SQL_IN class by calling psycopg's adapt() directly:
|
||||
|
||||
|
|
|
@ -44,7 +44,7 @@ if len(sys.argv) > 1:
|
|||
DSN = sys.argv[1]
|
||||
if len(sys.argv) > 2:
|
||||
MODE = int(sys.argv[2])
|
||||
|
||||
|
||||
print "Opening connection using dsn:", DSN
|
||||
conn = psycopg2.connect(DSN)
|
||||
curs = conn.cursor()
|
||||
|
@ -70,7 +70,7 @@ def insert_func(conn_or_pool, rows):
|
|||
conn = conn_or_pool
|
||||
else:
|
||||
conn = conn_or_pool.getconn()
|
||||
|
||||
|
||||
for i in range(rows):
|
||||
if divmod(i, COMMIT_STEP)[1] == 0:
|
||||
conn.commit()
|
||||
|
@ -91,14 +91,14 @@ def insert_func(conn_or_pool, rows):
|
|||
|
||||
## a nice select function that prints the current number of rows in the
|
||||
## database (and transfer them, putting some pressure on the network)
|
||||
|
||||
|
||||
def select_func(conn_or_pool, z):
|
||||
name = threading.currentThread().getName()
|
||||
|
||||
if MODE == 0:
|
||||
conn = conn_or_pool
|
||||
conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
|
||||
|
||||
|
||||
for i in range(SELECT_SIZE):
|
||||
if divmod(i, SELECT_STEP)[1] == 0:
|
||||
try:
|
||||
|
@ -125,7 +125,7 @@ else:
|
|||
m = len(INSERT_THREADS) + len(SELECT_THREADS)
|
||||
n = m/2
|
||||
conn_insert = conn_select = ThreadedConnectionPool(n, m, DSN)
|
||||
|
||||
|
||||
## create the threads
|
||||
threads = []
|
||||
|
||||
|
|
|
@ -63,5 +63,3 @@ print "Some text from cursor with typecaster:", curs.fetchone()[0]
|
|||
curs = conn.cursor()
|
||||
curs.execute("SELECT 'some text.'::text AS foo")
|
||||
print "Some text from connection with typecaster again:", curs.fetchone()[0]
|
||||
|
||||
|
||||
|
|
|
@ -60,10 +60,10 @@ print "Time zone:", d.tzinfo.tzname(d), "offset:", d.tzinfo.utcoffset(d)
|
|||
curs.execute("SELECT * FROM test_tz")
|
||||
for d in curs:
|
||||
u = d[0].utcoffset() or ZERO
|
||||
print "UTC time: ", d[0] - u
|
||||
print "UTC time: ", d[0] - u
|
||||
print "Local time:", d[0]
|
||||
print "Time zone:", d[0].tzinfo.tzname(d[0]), d[0].tzinfo.utcoffset(d[0])
|
||||
|
||||
|
||||
|
||||
curs.execute("DROP TABLE test_tz")
|
||||
conn.commit()
|
||||
|
|
|
@ -58,7 +58,7 @@ class Rect(object):
|
|||
and eventually as a type-caster for the data extracted from the database
|
||||
(that's why __init__ takes the curs argument.)
|
||||
"""
|
||||
|
||||
|
||||
def __init__(self, s=None, curs=None):
|
||||
"""Init the rectangle from the optional string s."""
|
||||
self.x = self.y = self.width = self.height = 0.0
|
||||
|
@ -68,7 +68,7 @@ class Rect(object):
|
|||
"""This is a terrible hack, just ignore proto and return self."""
|
||||
if proto == psycopg2.extensions.ISQLQuote:
|
||||
return self
|
||||
|
||||
|
||||
def from_points(self, x0, y0, x1, y1):
|
||||
"""Init the rectangle from points."""
|
||||
if x0 > x1: (x0, x1) = (x1, x0)
|
||||
|
@ -94,7 +94,7 @@ class Rect(object):
|
|||
s = "X: %d\tY: %d\tWidth: %d\tHeight: %d" % (
|
||||
self.x, self.y, self.width, self.height)
|
||||
return s
|
||||
|
||||
|
||||
# here we select from the empty table, just to grab the description
|
||||
curs.execute("SELECT b FROM test_cast WHERE 0=1")
|
||||
boxoid = curs.description[0][1]
|
||||
|
|
|
@ -295,4 +295,3 @@ Bytes_Format(PyObject *format, PyObject *args)
|
|||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
|
|
@ -295,5 +295,3 @@ PyTypeObject notifyType = {
|
|||
0, /*tp_alloc*/
|
||||
notify_new, /*tp_new*/
|
||||
};
|
||||
|
||||
|
||||
|
|
|
@ -312,4 +312,3 @@ psycopg_parse_escape(const char *bufin, Py_ssize_t sizein, Py_ssize_t *sizeout)
|
|||
exit:
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
|
@ -69,4 +69,3 @@ static typecastObject_initlist typecast_builtins[] = {
|
|||
{"MACADDRARRAY", typecast_MACADDRARRAY_types, typecast_STRINGARRAY_cast, "STRING"},
|
||||
{NULL, NULL, NULL, NULL}
|
||||
};
|
||||
|
||||
|
|
|
@ -250,4 +250,3 @@ typecast_MXINTERVAL_cast(const char *str, Py_ssize_t len, PyObject *curs)
|
|||
#define typecast_DATETIME_cast typecast_MXDATE_cast
|
||||
#define typecast_DATETIMETZ_cast typecast_MXDATE_cast
|
||||
#endif
|
||||
|
||||
|
|
|
@ -1,5 +1,4 @@
|
|||
|
||||
Microsoft Visual Studio Solution File, Format Version 10.00
|
||||
Microsoft Visual Studio Solution File, Format Version 10.00
|
||||
# Visual Studio 2008
|
||||
Project("{2857B73E-F847-4B02-9238-064979017E93}") = "psycopg2", "psycopg2.cproj", "{CFD80D18-3EE5-49ED-992A-E6D433BC7641}"
|
||||
EndProject
|
||||
|
@ -26,7 +25,7 @@ Global
|
|||
$2.DirectoryNamespaceAssociation = None
|
||||
$2.ResourceNamePolicy = FileName
|
||||
$0.StandardHeader = $3
|
||||
$3.Text =
|
||||
$3.Text =
|
||||
$3.IncludeInNewFiles = False
|
||||
$0.TextStylePolicy = $4
|
||||
$4.FileWidth = 72
|
||||
|
|
|
@ -28,4 +28,3 @@ curs = conn.cursor()
|
|||
|
||||
curs.execute("SELECT %s", ([1,2,None],))
|
||||
print curs.fetchone()
|
||||
|
||||
|
|
|
@ -17,7 +17,7 @@ def sleep(curs):
|
|||
while not curs.isready():
|
||||
print "."
|
||||
time.sleep(.1)
|
||||
|
||||
|
||||
#curs.execute("""
|
||||
# DECLARE zz INSENSITIVE SCROLL CURSOR WITH HOLD FOR
|
||||
# SELECT now();
|
||||
|
@ -33,4 +33,3 @@ print curs.fetchall()
|
|||
|
||||
curs.execute("SELECT now() AS bar")
|
||||
sleep(curs)
|
||||
|
||||
|
|
|
@ -16,4 +16,3 @@ sql()
|
|||
import gtk
|
||||
print "AFTER"
|
||||
sql()
|
||||
|
||||
|
|
|
@ -7,8 +7,7 @@ curs = conn.cursor(cursor_factory=psycopg2.extras.DictCursor)
|
|||
curs.execute("SELECT '2005-2-12'::date AS foo, 'boo!' as bar")
|
||||
for x in curs.fetchall():
|
||||
print type(x), x[0], x[1], x['foo'], x['bar']
|
||||
|
||||
|
||||
curs.execute("SELECT '2005-2-12'::date AS foo, 'boo!' as bar")
|
||||
for x in curs:
|
||||
print type(x), x[0], x[1], x['foo'], x['bar']
|
||||
|
||||
|
|
|
@ -14,7 +14,7 @@ two functions:
|
|||
# leak() will cause increasingly more RAM to be used by the script.
|
||||
$ python <script_nam> leak
|
||||
|
||||
# noleak() does not have the RAM usage problem. The only difference
|
||||
# noleak() does not have the RAM usage problem. The only difference
|
||||
# between it and leak() is that 'rows' is created once, before the loop.
|
||||
$ python <script_name> noleak
|
||||
|
||||
|
@ -80,4 +80,3 @@ except IndexError:
|
|||
|
||||
# Run leak() or noleak(), whichever was indicated on the command line
|
||||
run_function()
|
||||
|
||||
|
|
|
@ -28,8 +28,8 @@ import psycopg2 as dbapi
|
|||
|
||||
|
||||
conn = dbapi.connect(database='test')
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("""
|
||||
|
@ -41,5 +41,3 @@ cursor.execute("""
|
|||
|
||||
for row in cursor:
|
||||
print row
|
||||
|
||||
|
||||
|
|
|
@ -5,7 +5,7 @@ class Portal(psycopg2.extensions.cursor):
|
|||
def __init__(self, name, curs):
|
||||
psycopg2.extensions.cursor.__init__(
|
||||
self, curs.connection, '"'+name+'"')
|
||||
|
||||
|
||||
CURSOR = psycopg2.extensions.new_type((1790,), "CURSOR", Portal)
|
||||
psycopg2.extensions.register_type(CURSOR)
|
||||
|
||||
|
|
|
@ -10,4 +10,3 @@ class B(object):
|
|||
return 'It is True'
|
||||
else:
|
||||
return 'It is False'
|
||||
|
||||
|
|
|
@ -31,7 +31,7 @@ def sleep(curs):
|
|||
while not curs.isready():
|
||||
print "."
|
||||
time.sleep(.1)
|
||||
|
||||
|
||||
#curs.execute("""
|
||||
# DECLARE zz INSENSITIVE SCROLL CURSOR WITH HOLD FOR
|
||||
# SELECT now();
|
||||
|
@ -47,4 +47,3 @@ def sleep(curs):
|
|||
|
||||
#curs.execute("SELECT now() AS bar");
|
||||
#sleep(curs)
|
||||
|
||||
|
|
|
@ -6,4 +6,3 @@ curs = conn.cursor()
|
|||
curs.execute("SELECT true AS foo WHERE 'a' in %s", (("aa", "bb"),))
|
||||
print curs.fetchall()
|
||||
print curs.query
|
||||
|
||||
|
|
|
@ -40,4 +40,3 @@ dbconn.commit()
|
|||
|
||||
cursor.close()
|
||||
dbconn.close()
|
||||
|
||||
|
|
|
@ -6,4 +6,3 @@ c = o.cursor()
|
|||
c.execute("SELECT 1.23::float AS foo")
|
||||
x = c.fetchone()[0]
|
||||
print x, type(x)
|
||||
|
||||
|
|
|
@ -71,5 +71,3 @@ done = 1
|
|||
|
||||
cur.close()
|
||||
conn.close()
|
||||
|
||||
|
||||
|
|
|
@ -335,7 +335,7 @@
|
|||
|
||||
{
|
||||
Debian unstable with libc-i686 suppressions
|
||||
Memcheck:Cond
|
||||
Memcheck:Cond
|
||||
obj:/lib/ld-2.3.5.so
|
||||
obj:/lib/ld-2.3.5.so
|
||||
obj:/lib/tls/i686/cmov/libc-2.3.5.so
|
||||
|
@ -348,10 +348,10 @@
|
|||
fun:_PyImport_GetDynLoadFunc
|
||||
fun:_PyImport_LoadDynamicModule
|
||||
}
|
||||
|
||||
|
||||
{
|
||||
Debian unstable with libc-i686 suppressions
|
||||
Memcheck:Cond
|
||||
Memcheck:Cond
|
||||
obj:/lib/ld-2.3.5.so
|
||||
obj:/lib/ld-2.3.5.so
|
||||
obj:/lib/ld-2.3.5.so
|
||||
|
@ -365,7 +365,7 @@
|
|||
fun:_PyImport_GetDynLoadFunc
|
||||
fun:_PyImport_LoadDynamicModule
|
||||
}
|
||||
|
||||
|
||||
{
|
||||
Debian unstable with libc-i686 suppressions
|
||||
Memcheck:Addr4
|
||||
|
@ -471,7 +471,7 @@
|
|||
{
|
||||
Debian unstable with libc-i686 suppressions
|
||||
Memcheck:Cond
|
||||
obj:/lib/ld-2.3.5.so
|
||||
obj:/lib/ld-2.3.5.so
|
||||
obj:/lib/tls/i686/cmov/libc-2.3.5.so
|
||||
obj:/lib/ld-2.3.5.so
|
||||
fun:_dl_open
|
||||
|
|
|
@ -28,7 +28,7 @@ PGMINOR="`echo $PGVERSION | cut -d. -f2`"
|
|||
|
||||
echo checking for postgresql major: $PGMAJOR
|
||||
echo checking for postgresql minor: $PGMINOR
|
||||
|
||||
|
||||
echo -n generating pgtypes.h ...
|
||||
awk '/#define .+OID/ {print "#define " $2 " " $3}' "$PGTYPE" \
|
||||
> $SRCDIR/pgtypes.h
|
||||
|
@ -37,5 +37,3 @@ echo -n generating typecast_builtins.c ...
|
|||
awk '/#define .+OID/ {print $2 " " $3}' "$PGTYPE" | \
|
||||
python $SCRIPTSDIR/buildtypes.py >$SRCDIR/typecast_builtins.c
|
||||
echo " done"
|
||||
|
||||
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
#!/usr/bin/env python
|
||||
''' Python DB API 2.0 driver compliance unit test suite.
|
||||
|
||||
''' Python DB API 2.0 driver compliance unit test suite.
|
||||
|
||||
This software is Public Domain and may be used without restrictions.
|
||||
|
||||
"Now we have booze and barflies entering the discussion, plus rumours of
|
||||
|
@ -79,8 +79,8 @@ def str2bytes(sval):
|
|||
class DatabaseAPI20Test(unittest.TestCase):
|
||||
''' Test a database self.driver for DB API 2.0 compatibility.
|
||||
This implementation tests Gadfly, but the TestCase
|
||||
is structured so that other self.drivers can subclass this
|
||||
test case to ensure compiliance with the DB-API. It is
|
||||
is structured so that other self.drivers can subclass this
|
||||
test case to ensure compiliance with the DB-API. It is
|
||||
expected that this TestCase may be expanded in the future
|
||||
if ambiguities or edge conditions are discovered.
|
||||
|
||||
|
@ -90,9 +90,9 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
self.driver, connect_args and connect_kw_args. Class specification
|
||||
should be as follows:
|
||||
|
||||
import dbapi20
|
||||
import dbapi20
|
||||
class mytest(dbapi20.DatabaseAPI20Test):
|
||||
[...]
|
||||
[...]
|
||||
|
||||
Don't 'import DatabaseAPI20Test from dbapi20', or you will
|
||||
confuse the unit tester - just 'import dbapi20'.
|
||||
|
@ -111,7 +111,7 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
xddl2 = 'drop table %sbarflys' % table_prefix
|
||||
|
||||
lowerfunc = 'lower' # Name of stored procedure to convert string->lowercase
|
||||
|
||||
|
||||
# Some drivers may need to override these helpers, for example adding
|
||||
# a 'commit' after the execute.
|
||||
def executeDDL1(self,cursor):
|
||||
|
@ -135,10 +135,10 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
try:
|
||||
cur = con.cursor()
|
||||
for ddl in (self.xddl1,self.xddl2):
|
||||
try:
|
||||
try:
|
||||
cur.execute(ddl)
|
||||
con.commit()
|
||||
except self.driver.Error:
|
||||
except self.driver.Error:
|
||||
# Assume table didn't exist. Other tests will check if
|
||||
# execute is busted.
|
||||
pass
|
||||
|
@ -255,7 +255,7 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
con.rollback()
|
||||
except self.driver.NotSupportedError:
|
||||
pass
|
||||
|
||||
|
||||
def test_cursor(self):
|
||||
con = self._connect()
|
||||
try:
|
||||
|
@ -411,7 +411,7 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
)
|
||||
elif self.driver.paramstyle == 'named':
|
||||
cur.execute(
|
||||
'insert into %sbooze values (:beer)' % self.table_prefix,
|
||||
'insert into %sbooze values (:beer)' % self.table_prefix,
|
||||
{'beer':"Cooper's"}
|
||||
)
|
||||
elif self.driver.paramstyle == 'format':
|
||||
|
@ -551,7 +551,7 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
tests.
|
||||
'''
|
||||
populate = [
|
||||
"insert into %sbooze values ('%s')" % (self.table_prefix,s)
|
||||
"insert into %sbooze values ('%s')" % (self.table_prefix,s)
|
||||
for s in self.samples
|
||||
]
|
||||
return populate
|
||||
|
@ -612,7 +612,7 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
self.assertEqual(len(rows),6)
|
||||
rows = [r[0] for r in rows]
|
||||
rows.sort()
|
||||
|
||||
|
||||
# Make sure we get the right data back out
|
||||
for i in range(0,6):
|
||||
self.assertEqual(rows[i],self.samples[i],
|
||||
|
@ -683,10 +683,10 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
'cursor.fetchall should return an empty list if '
|
||||
'a select query returns no rows'
|
||||
)
|
||||
|
||||
|
||||
finally:
|
||||
con.close()
|
||||
|
||||
|
||||
def test_mixedfetch(self):
|
||||
con = self._connect()
|
||||
try:
|
||||
|
@ -722,7 +722,7 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
|
||||
def help_nextset_setUp(self,cur):
|
||||
''' Should create a procedure called deleteme
|
||||
that returns two result sets, first the
|
||||
that returns two result sets, first the
|
||||
number of rows in booze then "name from booze"
|
||||
'''
|
||||
raise NotImplementedError('Helper not implemented')
|
||||
|
@ -869,4 +869,3 @@ class DatabaseAPI20Test(unittest.TestCase):
|
|||
self.failUnless(hasattr(self.driver,'ROWID'),
|
||||
'module.ROWID must be defined.'
|
||||
)
|
||||
|
||||
|
|
Loading…
Reference in New Issue
Block a user