Question

I have the following code:

import functools
import random
import inspect 

def myfirst(a, b):
    return a + b

def mysecond(c, d):
    return c - d

def returnAPartial():  
    myrand = random.randrange(0,2)
    if myrand == 1:
        return functools.partial(myfirst, 1)
    else:
        return functools.partial(mysecond, 2)

I load it into python interactive and run:

myfunc = returnAPartial()

I want to check (programmatically) if myfunc is a partial application of the myfirst or mysecond function (not by calculating, the example is a bit contrived) So far I have used inspect.getmembers() but I couldn’t find a suitable attribute to check?

Answer 1

partial objects have a func attribute, which is what you want:

 myfunc = returnAPartial()
 print myfunc.func # <function mysecond at 0x10c918488>