python 批量压缩图片的脚本

#!/usr/bin/python3
# -*- coding: UTF-8 -*-
# Created by Mario Chen, 01.04.2021, Shenzhen
# My Github site: https://github.com/Mario-Hero
import sys
import os
from PIL import Image
SIZE_CUT = 4# picture over this size should be compressed. Units: MB
QUALITY = 90  # 90 is good, this number should not be smaller than 80.

def isPic(name):
 namelower = name.lower()
 return namelower.endswith("jpeg") or namelower.endswith("jpg") or namelower.endswith("png")

def compressImg(file):
 #print("The size of", file, "is: ", os.path.getsize(file))
 im = Image.open(file)
 im.save(file, quality=QUALITY)

def compress(folder):
 try:
  if os.path.isdir(folder):
print(folder)
file_list = os.listdir(folder)
for file in file_list:
 if os.path.isdir(folder+"/"+file):
  #print(folder +"/"+ file)
  compress(folder +"/"+file)
 else:
  if isPic(file):if os.path.getsize(folder + "/" + file) > (SIZE_CUT * 1024 * 1024):
compressImg(folder + "/" + file)
print(file)
  else:
if isPic(folder):
 if os.path.getsize(folder) > (SIZE_CUT * 1024 * 1024):
  compressImg(folder)
 except BaseException:
  return

if __name__ == '__main__':
 for folder in sys.argv:
  #print(folder)
  compress(folder)
 print("Finish.")
 #os.system("pause")

import os
from PIL import Image
import threading,time
def imgToProgressive(path):
 if not path.split('.')[-1:][0] in ['png','jpg','jpeg']:  #if path isn't a image file,return
  return
 if os.path.isdir(path):
  return
##########transform img to progressive
 img = Image.open(path)
 destination = path.split('.')[:-1][0]+'_destination.'+path.split('.')[-1:][0]
 try:
  print(path.split('\\')[-1:][0],'开始转换图片')
  img.save(destination, "JPEG", quality=80, optimize=True, progressive=True) #转换就是直接另存为
  print(path.split('\\')[-1:][0],'转换完毕')
 except IOError:
  PIL.ImageFile.MAXBLOCK = img.size[0] * img.size[1]
  img.save(destination, "JPEG", quality=80, optimize=True, progressive=True)
  print(path.split('\\')[-1:][0],'转换完毕')
 print('开始重命名文件')
 os.remove(path)
 os.rename(destination,path)
for d,_,fl in os.walk(os.getcwd()): #遍历目录下所有文件
 for f in fl:
  try:
imgToProgressive(d+'\\'+f)
  except:
pass