Python Function Pointer

I have a function name stored in a variable like this: myvar = 'mypackage.mymodule.myfunction' and I now want to call myfunction like this myvar(parameter1, parameter2) What's th

Solution 1:

funcdict = {
  'mypackage.mymodule.myfunction': mypackage.mymodule.myfunction,
    ....
}

funcdict[myvar](parameter1, parameter2)

Solution 2:

deff(a,b):
    return a+b

xx = 'f'printeval('%s(%s,%s)'%(xx,2,3))

OUTPUT

 5

Solution 3:

Easiest

eval(myvar)(parameter1, parameter2)

You don't have a function "pointer". You have a function "name".

While this works well, you will have a large number of folks telling you it's "insecure" or a "security risk".

Solution 4:

Why not store the function itself? myvar = mypackage.mymodule.myfunction is much cleaner.

Solution 5:

modname, funcname = myvar.rsplit('.', 1)
getattr(sys.modules[modname], funcname)(parameter1, parameter2)