python file code line counter (http://code.activestate.com/recipes/527746-line-of-code-counter/)

py_linecounter.py

# -*- coding: utf-8 -*-
import sys
import os
import fnmatch

def Walk(root='.', recurse=True, pattern='*'):
    """
    Generator for walking a directory tree.
    Starts at specified root folder, returning files
    that match our pattern. Optionally will also
    recurse through sub-folders.
    """
    for path, subdirs, files in os.walk(root):
        for name in files:
            if fnmatch.fnmatch(name, pattern):
                yield os.path.join(path, name)
        if not recurse:
            break

def LOC(root='', recurse=True):
    """
    Counts lines of code in two ways:
    maximal size (source LOC) with blank lines and comments
    minimal size (logical LOC) stripping same

    Sums all Python files in the specified folder.
    By default recurses through subfolders.
    """
    count_mini, count_maxi = 0, 0
    for fspec in Walk(root, recurse, '*.py'):
        skip = False
        for line in open(fspec).readlines():
            count_maxi += 1
            
            line = line.strip()
            if line:
                if line.startswith('#'):
                    continue
                if line.startswith('"""'):
                    skip = not skip
                    continue
                if not skip:
                    count_mini += 1

    return count_mini, count_maxi

if __name__ == '__main__':
    path = sys.argv[1]
    if path:
        print 'Counting lines in %s' % path
        print 'Minimal size: %s, maxium size: %s' % LOC(path)