How can I assign a method to a module in Python or even access the source file of this module? I tried using the __file__ attribute, as shown below, but returned the error saying that the module does not have such an attribute.
>>> import math
>>> Py.__file__ # Meu modulo
'/home/bezerk/Área de Trabalho/Py.py'
>>> math.__file__
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute '__file__'
You can not understand what you mean by "assigning a method to a module", but to get the source file, the way you did it is valid, along with several others, such as using the module inspect :
>>> import inspect
>>> import os
>>> inspect.getfile(os)
'/usr/lib/python2.7/os.pyc'
Why does not it work with the math module?
Because the math module, along with some others, is not written in Python, but in C, already compiled into a file referring to the operating system. The same happens with the datetime module, for example.
If you want to access the source code as a way to study what actually happens in the language, you can directly access the Python repository, version 2.7 or version 3.3 , for example. Within the Modules directory you will find the source files in C.
If you want to extend the functionality of a class present in the module, make use of object-oriented programming, such as inheritance. If you just want to add a function to namespace , I do not think that makes sense at all. If so, explain your problem better so we can discuss better solutions.
You can not print the path of the module math, at least as far as I know, but you can with others as with the
>> import os
>> print(os.__file__)
C:\Python27\lib\os.pyc
You can create a class and make an extend
ex:
import nomeModule
class MyOwnClass(nomeModule.MethodModule):
#AsTuasFuncoesAqui