Torsten Mohr <[EMAIL PROTECTED]> writes: > i tried to find the file and line in the C sources of python > where the command "import" is implemented. Can anybody give > me some hint on this?
Well, there are several levels, depending on what you are looking for. The literal "import" syntax in a source module is translated by the Python compiler to various IMPORT_* bytecodes, which are processed in the main interpreter loop (see ceval.c). They all basically bubble down to making use of the builtin __import__ method, which is obtained from the builtin module defined in bltinmodule.c. That in turn makes use of the import processing module whose code can be found in import.c - which is the same source that also implements the "imp" module to provide lower layer access to to the import internals. Now, when it comes to physically loading in a module, Python source and compiled modules are handled by import (well, not the compiling part), but dynamically loaded extension modules are OS specific. You can find the handling of such extension modules in OS-specific source files dynload_*.c (e.g., dynload_win.c for Windows). All of these files can be found in the dist/src/Python directory in the Python source tree. -- David -- http://mail.python.org/mailman/listinfo/python-list
