Python Modules


A module can be:
any valid source (.py) file
a compiled C or C++ file

Modules are dynamically loaded  by importing

On first import of a given module, Python:
Creates a new namespace for the module
Executes the code in the module file within the new namespace
Creates a name in the importer that refers to the module namespace

from ... import ... is similar, except:
No name is created in the importer for the module namespace
Names for the specifically imported objects are created in the importer