python inspect.getargspect

Question

Imports a module and then goes through the module's namespace to find any functions (you may assume any object with a call() method is a function) and print the names of the functions and their arguments, in the same way as it might appear in a def statement.

My problem is after I have loop through the module and gotten all the function I can not pass the function name to inspect.getfullargspec() because it is a string.How do i make the string callable?

import inspect
from smtplib import SMTP
from pprint import pprint
def func(x):     
    for item in inspect.getmembers(x):
         lst = inspect.getmembers(x, inspect.isfunction)
         for items in lst:
              func_names = items[0] #names of functions               
              f = r"%s.%s" % (x.__name__, func_names)
              arg = inspect.getargspec(f)
              print(f)



if __name__ == '__main__':
     func(SMTP)

quodlibetor · Answer 1 · 2012-05-21T14:10:08.657

You've got a few mistakes in this. The quick answer, though, is that that you don't want to make string callable, you just need to know that inspect.getmembers returns a list of ('func_name', <function object>) pairs, and inspect.getargspec expects a function object.

So you could make your for-loop look like this:

for name, fun in lst:
    long_name = r"%s.%s" % (x.__name__, name)
    argspec = inspect.getargspec(fun)
    print(long_name)

As a separate issue, you rvariable names are mostly nondescriptive and occasionally incorrect. For example, what you call func_names is always exactly one name, and the variable lst would be more usefully named members, and item should be member. Naming a function func is not normally good practice, especially when that function needs several variables inside of that should also, more appropriately, be named func.

Even better, make the for loop do the assignment for you: `for name, func in lst:` — Matthew Trevor, May 21 '12 at 06:12

score 0 · Answer 2 · answered Nov 25 '13 at 18:41

lst here is a tuple of function name and function object, you do not really need to do all the string manipulation. Below simple method will do the job:

def func(module):
    for lst in inspect.getmembers(module, inspect.isfunction):
        if inspect.isfunction(lst[1]):# Doing an additional check, may not be actually required
            print(lst[0]+inspect.formatargspec(*inspect.getfullargspec(lst[1])))

python inspect.getargspect

2 Answers2