How can I list function calls by using exec in python? -

i want use exec simple python code , list functions called instead of calling them.

if know functions called, can create dictionary defines named functions print , use second argument of exec.

i'm trying use custom dictionary class prints called functions overwritting getitem, exec not helping issuing:

typeerror: exec: arg 2 must dictionary or none 

is there way customize function call in generic way?

edit:

for instance, suppose have following configuration file, written in python:

user('foo') password('foo123') home('/home/foo')  user('bar') password('bar123') home('/home/foo') 

i need run file , print information contained therein. can following python program:

d = { 'user': print, 'password': print, 'home: 'print } execfile(filename, d, {}) 

the problem approach have initialize d functions present in file. tried use custom dictionary did different on getitem, , got typeerror above.

perhaps following?

class printer(dict):     def __missing__(self, key):         def wrapped(*args, **kwargs):             print('{} called: args={}, kwargs={}'.format(key, args, kwargs))         return wrapped  code = ''' foo() bar(1, 2, baz=3) '''  exec(code, printer()) 

output:

foo called: args=(), kwargs={} bar called: args=(1, 2), kwargs={'baz': 3}