CODEWITHSUNDEEP
pythonfunctionmodule
Daedalus Mythos
Daedalus Mythos

Reputation: 575

Check if modules offer required functions without executing them

I am importing a variable number of modules that all need to offer the same functions (func1, func2, func3(n)).

I know all the modules names and need to verify that they all - at least offer the function, without executing them (e.g. not something like try something = mod1.func1 except NotWorking: print("nope")) or parsing the whole module for the presence of "def func1:".

How could I verify that these modules offer said functions?

Upvotes: 0

Views: 24

Answers (1)

Daniel Roseman
Daniel Roseman

Reputation: 600051

Modules are objects, and methods are just attributes of those objects. You can use the normal getattr and hasattr functions:

hasattr(mod1, "func1")

But this sounds like a strange way to do things. It would probably be better to use a class with a proper inheritance mechanism, so that the superclass defines the interface by declaring abstract methods (which can do nothing but raise NotImplementedError) and the subclasses implement that interface.

Upvotes: 1

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