Python stack inspection

Sometimes function curious to know who is made the call.

 1 #!/usr/bin/python
 2 
 3 import inspect
 4 
 5 def f1():
 6     stack = inspect.stack()
 7     for level in stack:
 8         print level[0].f_code.co_name
 9 
10 def f2():
11     f1()
12 
13 def f3():
14     f2()
15 
16 def f4():
17     f3()
18 
19 def f5():
20     f4()
21 
22 f5()

The output would be something like this:

f1
f2
f3
f4
f5
...