"""
" Created by Daniele Costarella <daniele.costarella@gmail.com>
" Search file contents in multiple subdirectories
"""

import os

def find(word):
    def _find(path):
        with open(path, "rb") as fp:
            for n, line in enumerate(fp):
                if word in line:
                    yield n+1, line
    return _find

def search(word, start):
    finder = find(word)
    for root, dirs, files in os.walk(start):
        for f in files:
            path = os.path.join(root, f)
            for line_number, line in finder(path):
                yield path, line_number, line.strip()

if __name__ == "__main__":
    import sys
    if not len(sys.argv) == 3:
        print("USAGE: python find.py word directory")
        sys.exit(1)
    word = sys.argv[1]
    start = sys.argv[2]
    for path, line_number, line in search(word, start):
        print ("{0} matches in line {1}: '{2}'".format(path, line_number, line))