python统计指定目录内文件的代码行数

#coding：utf-8import os,re #代码所在目录FILE_PATH = './' def analyze_code(codefilesource):  '''  打开一个py文件，统计其中的代码行数，包括空行和注释  返回含该文件总行数，注释行数，空行数的列表  :param codefilesource:  :return:  '''  total_line = 0  comment_line = 0  blank_line = 0  with open(codefilesource,encoding='gb18030',errors='ignore') as f:    lines = f.readlines()    total_line = len(lines)    line_index = 0    #遍历每一行    while line_index < total_line:      line = lines[line_index]      #检查是否为注释      if line.startswith("#"):        comment_line += 1      elif re.match("/s*'''",line) is not None:        comment_line += 1        while re.match(".*'''$",line) is None:          line = lines[line_index]          comment_line += 1          line_index += 1      #检查是否为空行      elif line =='/n':        blank_line += 1      line_index += 1  print("在%s中:"%codefilesource)  print("代码行数：",total_line)  print("注释行数:",comment_line,"占%0.2f%%"%(comment_line*100/total_line))  print("空行数:", blank_line, "占%0.2f%%"%(blank_line * 100 / total_line))  return [total_line,comment_line,blank_line]def run(FILE_PATH):  os.chdir(FILE_PATH)  #遍历py文件  total_lines = 0  total_comment_lines = 0  total_blank_lines = 0  for i in os.listdir(os.getcwd()):    if os.path.splitext(i)[1] == '.py':      line = analyze_code(i)      total_lines,total_comment_lines,total_blank_lines=total_lines+line[0],total_comment_lines+line[1],total_blank_lines+line[2]  print("总代码行数:",total_lines)  print("总注释行数:",total_comment_lines,"占%0.2f%%"%(total_comment_lines*100/total_lines))  print("总空行数:", total_blank_lines, "占%0.2f%%"% (total_blank_lines * 100 / total_lines)) if __name__ == '__main__':  run(FILE_PATH)