LoadingModulesDynamically

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You can load a module dynamically like so:

 1 __import__("os")

If you do that, though, "os" isn't bound to anything.

 1 >>> __import__("os")
 2 <module 'os' from '/usr/lib/python2.3/os.pyc'>
 3 >>> os
 4 Traceback (most recent call last):
 5  File "<stdin>", line 1, in ?
 6 NameError: name 'os' is not defined
 7 >>>

Once you have the module, you probably want to find classes and functions and data inside of it.

Use getattr:

 1 >>> m=__import__("mine")
 2 >>> m
 3 <module 'mine' from 'mine.pyc'>
 4 >>> getattr(m, "eggs")
 5 4654
 6 >>> getattr(m, "ham")
 7 'Monty Python'

2026年02月14日 16:09