Source code for Python's modules

Question

Is it possible to view the source code of Python's functions like sum, zip and the like? I just want to know about the implementation.

Thanks.

Answer 1

You can download it here:

http://www.python.org/getit/source/

• Joachim Isaksson: The source of the modules is (fairly obviously) in the Modules directory.
• synthesizerpatel: sum and zip aren't modules though. He's asking about the backend C code.

Answer 2

Source for builtins functions (like sum, zip, etc) are in http://hg.python.org/cpython/file/57c157be847f/Python/bltinmodule.c.

Answer 3

You cant see the code for the sum and zip because those are wrapper of c functions. But other module you can check on http://hg.python.org/cpython/file/2.7/Lib

Answer 4

This will give you the location of the Python source code files on disk:

import sys
print(["%s %s" % (k,v) for k,v in sys,modules.items()] if k == "re")

On Windows, it is usually found on C:\python33\lib\. and on Linux it is /usr/python2.7/lib/....

Once there, you can view the .py files as you wish.

• DownloadPizza: I think OP is asking for the C source code of the internal funcions like sum, min, max, reduce and so on