Python Module Internal Representation and Introspection: Difference between revisions
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<syntaxhighlight lang='python'> | <syntaxhighlight lang='python'> | ||
import mymodule | import mymodule | ||
assert mymodule.__name__ == 'mymodule' | |||
</syntaxhighlight> | </syntaxhighlight> | ||
===<tt>__file__</tt>=== | ===<tt>__file__</tt>=== | ||
Once imported, the file associated with the module can be determined using the module object's <code>__file__</code> attribute, as string: | Once imported, the file associated with the module can be determined using the module object's <code>__file__</code> attribute, as string: | ||
Revision as of 03:46, 4 January 2023
Internal
Overview
The module Class
All module and package instances are represented internally as instances of the module class.
Attributes
All object instances declared in the module (variables, functions, etc.) become attributes of the module instance and they are accessible with inspect.getmembers(). Additionally, the following special attributes are present:
__name__
The name of the module, as string.
import mymodule
assert mymodule.__name__ == 'mymodule'
__file__
Once imported, the file associated with the module can be determined using the module object's __file__ attribute, as string:
import mymodule
[...]
print(mymodule.__file__)
The directory portion of __file__ should be one of the directories in sys.path.
__path__
The __path__ attribute exists only for module instances that represent packages, not for those instances that represent ordinary modules.
__path__ contains the path of the package root directory, where the component modules, subpackages, __init__.py and __main__.py live.