Python中实现从目录中过滤出指定文件类型的文件

#!/usr/bin/env python

import glob
import os
os.chdir(“./”)
for file in glob.glob(“*.py”):
print file

print “#######Another One##########”

for file in os.listdir(“./”):
if file.endswith(“.py”):
print file

print “#######Another Two##########”
for root, dirs, files in os.walk(“./”):
for file in files:
if file.endswith(“.py”):
print os.path.join(root, file)

print “#######Another Three##########”

os.chdir(“./”)
filename_arr={}
i=0
for files in glob.glob(“*.py”):
filename_arr[i] = files
i += 1

for key, value in filename_arr.items():
print key, value