What is the best way to go about calling a function given a string with the function’s name in a Python program. For example, let’s say that I have a module
foo, and I have a string whose content is
"bar". What is the best way to call
I need to get the return value of the function, which is why I don’t just use
eval. I figured out how to do it by using
eval to define a temp function that returns the result of that function call, but I’m hoping that there is a more elegant way to do this.
foo with method
import foo method_to_call = getattr(foo, 'bar') result = method_to_call()
You could shorten lines 2 and 3 to:
result = getattr(foo, 'bar')()
if that makes more sense for your use case.
You can use
getattr in this fashion on class instance bound methods, module-level methods, class methods… the list goes on.