godfinder.py

import collections
import fileinput
import os

def find_files(path='.', ext='.py'):
    for root, dirs, filenames in os.walk(path):
        for filename in filenames:
            if filename.endswith(ext):
                yield(os.path.join(root, filename)) 
def is_line(line):
    return True

def has_class(line):
    return line.startswith('class') 
  
def has_function(line):
    return 'def ' in line
  
COUNTERS = dict(lines=is_line, classes=has_class,
            functions=has_function)

def find_gods():
    stats = collections.defaultdict(collections.Counter) for line in fileinput.input(find_files()):
    for key, func in COUNTERS.items(): if func(line):
                        stats[key][fileinput.filename()] += 1

        for filename, lines in stats['lines'].most_common(): 
            classes = stats['classes'][filename]
            functions = stats['functions'][filename]
            try:
                ratio = "=> {0}:1".format(functions / classes) 
            except ZeroDivisionError:
                ratio = "=> n/a"
            print filename, lines, functions, classes, ratio
            
if __name__ == '__main__': 
    find_gods()