Call a function using getattr in Python
This question already has an answer here:
It's a bit hard to see what exactly you're trying to accomplish without seeing what you've tried so far.
Nonetheless, if the function you want to call is actually a method on some object, you can use getattr:
# somestring is a string, but could be any object
somestring = "valentyn"
# somestring.upper happens to be a method
method = getattr(somestring, "upper")
# ...which can be called in the usual manner
print(method())
If you want to call functions that are locally defined, you can use locals():
def wow():
return "spam"
# locals() returns a dict of variables and functions that are locally defined
print(locals()["wow"]())
If you know in advance which functions you want to expose, you could consider making a dict of functions:
def foo():
...
def bar():
...
funcs = {"foo": foo, "bar": bar}
funcs["foo"]()
Finally, if the code you want to run is actually sent from the client like you say, your only option is to use eval - however, this will be even less secure than the options above.
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