source code of python inbuilt functions [duplicate]

Question

I have used type() function in my program...

I just want to know how does Python implement this? Or where could I find the source code file that implement this function?

type is not only a function, it is the base class for all metaclasses of new-style classes. See Python's data model for further reading. — ephemient
– ephemient, Commented Apr 19, 2012 at 4:11

Raymond Hettinger · Accepted Answer · 2012-04-19 04:06:56Z

13

The type() function is implemented in C. Here's a link to the source: http://hg.python.org/cpython/file/0f837071fd97/Objects/typeobject.c

answered Apr 19, 2012 at 4:06

Raymond Hettinger

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Kracekumar · Accepted Answer · 2012-04-19 05:45:50Z

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In general

import multiprocessing multiprocessing.__path__ multiprocessing.__file__

__path__ yields location of the library __file__ yields complete path of the file.

If above didn't work, you need to look into python development source code.

Regarding type source code, Raymond Hettinger's answer is correct.

edited Apr 19, 2012 at 5:45

answered Apr 19, 2012 at 4:25

Kracekumar

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2 Comments

ephemient Over a year ago

No. type, like other members of __builtin__, are built into the Python interpreter, and are not a separate library.

Kracekumar Over a year ago

@ephemient: I din know this, I was under assumption whenever interpreter loads, builtin funcs are imported to namespace, so all builtins reside in /some/path/for/builtins/*.so

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