print file all fucntion __doc__

test.py

import inspect
def get_module_function__doc(module):
    module = __import__(module)
    name_func_tuples = inspect.getmembers(module, inspect.isfunction)
    name_func_tuples = [t[1] for t in name_func_tuples if inspect.getmodule(t[1]) == module]
    tmp = ''
    for _ in name_func_tuples:
        tmp = tmp+_.__doc__
    print(tmp)
get_module_function__doc('command')