keyword matching part2

[janho]

Tried below but it's seems not to be working :-

import os
import glob

def search_words(keyword,target_dir):
    files = glob.glob(target_dir+'/**', recursive=True)
    python_files = []
    results = []
    line_no = []
    #Isolate target files from folders and everything else
    for f in files:
        if f.endswith('.py'):
            python_files.append(f)

    for pyf in python_files:
        with open(pyf,'rb') as f:
            lines = f.readlines()
        for i,line in enumerate(lines):
            line = str(line)
            if line.find(keyword) > -1:
                line_no.append(i)

        results.append({'keyword':keyword,'lines':line_no,'target_file':pyf,'total_found':len(line_no)})
    return results