python3 计算文件夹中所有py文件里面代码行数，注释行数，空行数

import os,re

#代码所在位置
FILE_PATH = './'

def analyze_code(codefilesource):
'''
打开一个py文件统计其中的代码行数，包括空格和注释
返回该文件总行数，注释函数，空行输
:param codefilesource:
:return:
'''
total_line = 0
comment_line = 0
black_line = 0
with open(codefilesource,'r', encoding='UTF-8') as f:
# with open(codefilesource,'rb') 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]
# line = str(line, encoding="utf-8")
#检查是否为注释
if line.startswith("#"):
comment_line += 1
elif re.match("\s*'''",line) is not None:
print("有\s*")
print("line_Index:", line_Index)
while re.match(".*'''$",line) is None:
print(line)
print("line_Index:", line_Index)
line = lines[line_Index]
# line = str(line, encoding="utf-8")
comment_line += 1
if(line_Index < total_line):
line_Index += 1

#检查是否为空行
elif line == "\n":
black_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*100.0/total_line))
print("空行数：", black_line, "占%0.2f%%" % (black_line * 100.0 / total_line))
return [total_line,comment_line,black_line]

def run(FILE_PATH):
#切换到code所在目录
os.chdir(FILE_PATH)
#遍历所有py文件
total_lines = 0
total_comment_lines = 0
total_black_lines = 0
for i in os.listdir(os.getcwd()):
if os.path.splitext(i)[1] == ".py":
print(os.path.splitext(i))
line = analyze_code(i)
total_lines,total_comment_lines,total_black_lines = total_lines + line[0],total_comment_lines + line[1],total_black_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 * 100.0 / total_lines))
print("总空行数：", total_black_lines, "占%0.2f%%" % (total_black_lines * 100.0 / total_lines))
if __name__ == '__main__':
# analyze_code("calcTimes.py")
# analyze_code("Demo.py")
# analyze_code("file.py")
run(FILE_PATH)