A bunch of typos fixed in the examples by Josh Kupershmidt

This commit is contained in:
Daniele Varrazzo 2011-12-15 23:58:22 +00:00
parent c3914b8aa2
commit b721421633
12 changed files with 21 additions and 21 deletions

2
README
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@ -8,7 +8,7 @@ and stable as a rock.
psycopg2 is different from the other database adapter because it was psycopg2 is different from the other database adapter because it was
designed for heavily multi-threaded applications that create and destroy designed for heavily multi-threaded applications that create and destroy
lots of cursors and make a conspicuous number of concurrent INSERTs or lots of cursors and make a conspicuous number of concurrent INSERTs or
UPDATEs. psycopg2 also provide full asycronous operations and support UPDATEs. psycopg2 also provides full asynchronous operations and support
for coroutine libraries. for coroutine libraries.
psycopg2 can compile and run on Linux, FreeBSD, Solaris, MacOS X and psycopg2 can compile and run on Linux, FreeBSD, Solaris, MacOS X and

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@ -16,7 +16,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys import sys
import psycopg2 import psycopg2
@ -79,7 +79,7 @@ for row in curs.fetchall():
print "done" print "done"
print " python type of image data is", type(row[0]) print " python type of image data is", type(row[0])
# this rollback is requires because we can't drop a table with a binary cusor # this rollback is required because we can't drop a table with a binary cusor
# declared and still open # declared and still open
conn.rollback() conn.rollback()

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@ -17,7 +17,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys import sys
import os import os
@ -165,7 +165,7 @@ try:
curs.copy_from(data, 'test_copy') curs.copy_from(data, 'test_copy')
except StandardError, err: except StandardError, err:
conn.rollback() conn.rollback()
print " Catched error (as expected):\n", err print " Caught error (as expected):\n", err
conn.rollback() conn.rollback()

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@ -17,7 +17,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys import sys
import os import os

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@ -58,6 +58,6 @@ print "Result of fetchone():", curs.fetchone()
try: try:
curs.fetchone() curs.fetchone()
except NoDataError, err: except NoDataError, err:
print "Exception caugth:", err print "Exception caught:", err
conn.rollback() conn.rollback()

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@ -104,10 +104,10 @@ print adapt(Order()).generateInsert()
- Discussion - Discussion
Psycopg 2 has a great new feature: adaptation. The big thing about Psycopg 2 has a great new feature: adaptation. The big thing about
adaptation is that it enable the programmer to glue most of the adaptation is that it enables the programmer to glue most of the
code out there without many difficulties. code out there without many difficulties.
This recipe tries to focus the attention on a way to generate SQL queries to 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 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 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. fields that we need for each object through the persistent_fields dict.
@ -116,7 +116,7 @@ The most important lines of this recipe are:
register_adapter(Album, ObjectMapper) register_adapter(Album, ObjectMapper)
register_adapter(Order, ObjectMapper) register_adapter(Order, ObjectMapper)
In these line we notify the system that when we call adapt with an 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 an argument we want it to istantiate ObjectMapper passing the Album instance
as argument (self.orig in the ObjectMapper class). as argument (self.orig in the ObjectMapper class).

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@ -16,7 +16,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys import sys
import psycopg2 import psycopg2
@ -73,7 +73,7 @@ print "Extracting values inserted with mx.DateTime wrappers:"
curs.execute("SELECT d, t, dt, z FROM test_dt WHERE k = 1") curs.execute("SELECT d, t, dt, z FROM test_dt WHERE k = 1")
for n, x in zip(mx1[1:], curs.fetchone()): for n, x in zip(mx1[1:], curs.fetchone()):
try: try:
# this will work only is psycopg has been compiled with datetime # this will work only if psycopg has been compiled with datetime
# as the default typecaster for date/time values # as the default typecaster for date/time values
s = repr(n) + "\n -> " + str(adapt(n)) + \ s = repr(n) + "\n -> " + str(adapt(n)) + \
"\n -> " + repr(x) + "\n -> " + x.isoformat() "\n -> " + repr(x) + "\n -> " + x.isoformat()
@ -87,7 +87,7 @@ print "Extracting values inserted with Python datetime wrappers:"
curs.execute("SELECT d, t, dt, z FROM test_dt WHERE k = 2") curs.execute("SELECT d, t, dt, z FROM test_dt WHERE k = 2")
for n, x in zip(dt1[1:], curs.fetchone()): for n, x in zip(dt1[1:], curs.fetchone()):
try: try:
# this will work only is psycopg has been compiled with datetime # this will work only if psycopg has been compiled with datetime
# as the default typecaster for date/time values # as the default typecaster for date/time values
s = repr(n) + "\n -> " + repr(x) + "\n -> " + x.isoformat() s = repr(n) + "\n -> " + repr(x) + "\n -> " + x.isoformat()
except: except:

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@ -16,7 +16,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys import sys
import psycopg2 import psycopg2
@ -52,7 +52,7 @@ conn.commit()
# does some nice tricks with the transaction and postgres cursors # does some nice tricks with the transaction and postgres cursors
# (remember to always commit or rollback before a DECLARE) # (remember to always commit or rollback before a DECLARE)
# #
# we don't need to DECLARE ourselves, psycopg now support named # we don't need to DECLARE ourselves, psycopg now supports named
# cursors (but we leave the code here, comments, as an example of # cursors (but we leave the code here, comments, as an example of
# what psycopg is doing under the hood) # what psycopg is doing under the hood)
# #

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@ -16,7 +16,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys, psycopg2 import sys, psycopg2

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@ -16,7 +16,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys import sys
import select import select

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@ -29,12 +29,12 @@ SELECT_STEP = 500
SELECT_DIV = 250 SELECT_DIV = 250
# the available modes are: # the available modes are:
# 0 - one connection for all insert and one for all select threads # 0 - one connection for all inserts and one for all select threads
# 1 - connections generated using the connection pool # 1 - connections generated using the connection pool
MODE = 1 MODE = 1
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys, psycopg2, threading import sys, psycopg2, threading
from psycopg2.pool import ThreadedConnectionPool from psycopg2.pool import ThreadedConnectionPool
@ -90,7 +90,7 @@ def insert_func(conn_or_pool, rows):
conn.commit() conn.commit()
## a nice select function that prints the current number of rows in the ## a nice select function that prints the current number of rows in the
## database (and transefer them, putting some pressure on the network) ## database (and transfer them, putting some pressure on the network)
def select_func(conn_or_pool, z): def select_func(conn_or_pool, z):
name = threading.currentThread().getName() name = threading.currentThread().getName()

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@ -17,7 +17,7 @@
DSN = 'dbname=test' DSN = 'dbname=test'
## don't modify anything below tis line (except for experimenting) ## don't modify anything below this line (except for experimenting)
import sys import sys
import psycopg2 import psycopg2