Create a bash script that produces a catalog of all functions in a set of Python source files named on the command line.

The output will be a sequence of lines of the form:

function_name file_name:line_number

Suppose for example that the file example.py had on line 7:

def foo(l):

Then for that line, the output of your script would say:

foo filename.py:7

The output should be sorted by the function name.