How is the __name__ variable in a Python module defined?

Question

I\'m aware of the standard example: if you execute a module directly then it\'s __name__ global variable is defined as \"__main__\". However, nowhe

Answer 1

The __name__ variable is an attribute of the module that would be accessible by the name.

import os
assert os.__name__ == 'os'

Example self created module that scetches the import mechanism:

>>> import types
>>> m = types.ModuleType("name of module") # create new module with name
>>> exec "source_of_module = __name__" in m.__dict__ # execute source in module
>>> m.source_of_module
'name of module'

Lines from types module:

import sys
ModuleType = type(sys)