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I need to make one function in a module platform-independent by offering several implementations, without changing any files that import it. The following works:
do_it = getattr(__import__(__name__), "do_on_" + sys.platform)
…but breaks if the module is put into a package.
An alternative would be an if/elif with hard-coded calls to the others in do_it().
Anything better?
Use
globals()['do_on_' + platform]instead of thegetattrcall and your original idea should work whether this is inside a package or not.