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44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
General information
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*******************
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Some help to people wanting to hack on psycopg. First of all, note that
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*every* function in the psycopg module source code is prefixed by one of the
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following words:
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psyco is used for function directly callable from python (i.e., functions
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in the psycopg module itself.) the only notable exception is the
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source code for the module itself, that uses "psyco" even for C-only
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functions.
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conn is used for functions related to connection objects.
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curs is used for functions related to cursor objects.
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typecast is used for typecasters and utility function related to
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typecaster creation and registration.
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Pythonic definition of types and functions available from python are defined
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in *_type.c files. Internal functions, callable only from C are located in
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*_int.c files and extensions to the DBAPI can be found in the *_ext.c files.
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Patches
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*******
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If you submit a patch, please send a diff generated with the "-u" switch.
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Also note that I don't like that much cosmetic changes (like renaming
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already existing variables) and I will rewrap the patch to 78 columns
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anyway, so it is much better if you do that beforehand.
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The type system
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***************
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Simple types, like integers and strings, are converted to python base types
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(the conversion functions are in typecast_base.c). Complex types are
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converted to ad-hoc types, defined in the typeobj_*.{c,h} files. The
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conversion function are in the other typecast_*.c files. typecast.c defines
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the basic utility functions (available through the psycopg module) used when
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defining new typecasters from C and python.
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