How to format css file formatting script

This time I will bring you the method of css file formatting script, what are the precautions of css file formatting script, the following is a practical case, let's take a look.

#!/usr/bin/python
# -*- coding: UTF-8 -*-
import sys,os
def format(ddt):
   ddt = ddt.replace('\n','')#去除换行
   ddt=ddt.replace(';}','}').replace(';',';\n').replace('{','{\n').replace('}','\n}\n')#重新换行
   lines = ddt.split("\n")#读取全部换行内容
   ddt=""
   for line in lines  :
       ddt=ddt+line.strip(' ')+"\n"#去除每行前面空格
   return ddt.replace('{\n','{\n    ').replace(';\n',';\n    ') #空格整理
for file in sys.argv:
   if file!=sys.argv[0] and os.path.isfile(file)  and (str(file).split(".")[-1]).lower()=="css":
      print u"正在读取-",file
      newfile = open(file,"r")
      f=format(newfile.read())
      newfile=open(file,'w')
      newfile.write(f)
      newfile.close()
      print file,"-ok"

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