Python 练习小工具，统计代码行数

Python 练习小工具，统计代码行数。Java, C, Object-C, Swift

# -*- coding: utf-8 -*-
#Python 练习小工具，统计Java 代码行数
import os
#统计文件行数
def countLines(fileName):
  count = 0
  with open(fileName, 'r') as f:
    while True:
      line = f.readline()
      if line:
        if len(line)>1:
          count += 1
      else:
        break
  #print ">>>%s \tLines %d"%(os.path.split(fileName)[1], count)
  return count

#遍历
def traverse(fileName):
  if os.path.exists(fileName) == 'false':
    print "File is not exist"
    return 0
  if os.path.isfile(fileName):
    type = os.path.splitext(fileName)[1]
    if  type == '.java' or type == ".c" or type == ".m" or type == ".h" or type == ".swift":
      return countLines(fileName)
    return 0
  if os.path.isdir(fileName):
    count = 0
    for ddd in os.listdir(fileName):
      count += traverse(os.path.join(fileName, ddd))
    return count
  print "ERROR BUG %s"%fileName
  return 0

#Main
abspath = os.path.abspath('.')
count = traverse(abspath)
#count = countLines("hello.txt")
print "\n"
print "*********************************************"
print ">> abspath = %s"%(abspath)
print ">> The number of rows is %d"%(count)
print "*********************************************"
print "                   Game Over                  "
print "*********************************************"