author: sunny
title: python3批量压缩图片
date: 2018-09-26 16:56:30
categories: 编程
tags: python
背景
TinyPNG和TinyJPG两个网站提供了.png和.jpg格式图片压缩和优化的功能。虽然可以很轻松地使用网页版进行操作,但是有些时候,调用网站提供的API更为方便快捷。tinify模块就是由TinyPNG提供的使用Python调用Tiny PNG API的模块。
安装
pip install --upgrade tinify
获取tinify API key
如果想调用TinyPNG的API,需要先在他们的网站TinyPNG Developer API上申请一个API key用于身份验证。提供名称和邮箱,就可以获得一个API key,API key会以链接的形式发到邮箱里,可以使用icloud和outlook邮箱,不可使用qq邮箱,申请成功如下
api_key编写python3代码
1、获取终端输入的文件目录
"""
Usage:
tinypng [-d] <dir>
Options:
-h,--help 显示帮助菜单
-d 压缩目录
Example:
tinypng -d /Users/sunny/Desktop/xxx
"""
...
arguments = docopt(__doc__)
finder = arguments['<dir>']
2、获取目录下图片文件
# 获取图片路径
def get_img_path(self, finder):
for p in os.listdir(finder):
temp_path = os.path.join(finder, p)
if os.path.isdir(temp_path):
self.get_img_path(temp_path)
else:
if os.path.splitext(p)[1] == '.png' or os.path.splitext(p)[1] == '.jpg' or os.path.splitext(p)[1] == '.jpeg':
self.png_path.append(os.path.join(finder, p))
3、压缩图片
# 循环文件
def handle_compress (self):
for file in self.png_path:
self.compress_file(os.path.abspath(file))
# 压缩文件
def compress_file (self, inputFile, width=None):
print('-----------------compress start-----------------')
if not os.path.isfile(inputFile):
print('这不是一个文件,请输入文件的正确路径!')
return
else:
dirname = os.path.dirname(inputFile)
basename = os.path.basename(inputFile)
fileName, fileSuffix = os.path.splitext(basename)
print('dirname=%s, basename=%s, fileName=%s, fileSuffix=%s' % (dirname, basename, fileName, fileSuffix))
if fileSuffix == '.png' or fileSuffix == '.jpg' or fileSuffix == '.jpeg':
dir_list = dirname.split(self.finder)
if dir_list[1] != '' and dir_list[1][0] == '/':
dir = os.path.join(self.finder, 'tiny', dir_list[1][1:])
else:
dir = os.path.join(self.finder, 'tiny', dir_list[1])
self.mkdir(dir)
self.compress(inputFile, f'{dir}/{basename}', width)
else:
print(f'{fileName}不支持该文件类型压缩!')
print('-----------------compress end-----------------')
# 压缩图片
def compress (self, inputFile, outputFile, img_width):
source = tinify.from_file(inputFile)
if img_width is not None:
resized = source.resize(method='scale', width=img_width)
resized.to_file(outputFile)
print(f'{inputFile}压缩成功!')
else:
source.to_file(outputFile)
print(f'{inputFile}压缩成功!')
# 新建文件夹
def mkdir (self, path):
exist = os.path.exists(path)
if not exist:
print(f'建了一个名字叫做{path}的文件夹!')
os.makedirs(path)
return True
else:
print(f'名字叫做{path}的文件夹已经存在了!')
return False
4、完整代码
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Usage:
tinypng [-d] <dir>
Options:
-h,--help 显示帮助菜单
-d 压缩目录
Example:
tinypng -d /Users/sunny/Desktop/xxx
"""
import os.path
import tinify, os
from docopt import docopt
__author__ = 'sunny'
__date__ = '2018/09/26'
# 请替换为自己申请的Key
tinify.key = '6OB4sxKcwILxBSzknRKvdbL22f1UDIFv'
class CompressImg ():
def __init__ (self, finder):
self.png_path = []
self.finder = finder
# 获取图片路径
def get_img_path(self, finder):
for p in os.listdir(finder):
temp_path = os.path.join(finder, p)
if os.path.isdir(temp_path):
self.get_img_path(temp_path)
else:
if os.path.splitext(p)[1] == '.png' or os.path.splitext(p)[1] == '.jpg' or os.path.splitext(p)[1] == '.jpeg':
self.png_path.append(os.path.join(finder, p))
# 循环文件
def handle_compress (self):
for file in self.png_path:
self.compress_file(os.path.abspath(file))
# 压缩文件
def compress_file (self, inputFile, width=None):
print('-----------------compress start-----------------')
if not os.path.isfile(inputFile):
print('这不是一个文件,请输入文件的正确路径!')
return
else:
dirname = os.path.dirname(inputFile)
basename = os.path.basename(inputFile)
fileName, fileSuffix = os.path.splitext(basename)
print('dirname=%s, basename=%s, fileName=%s, fileSuffix=%s' % (dirname, basename, fileName, fileSuffix))
if fileSuffix == '.png' or fileSuffix == '.jpg' or fileSuffix == '.jpeg':
dir_list = dirname.split(self.finder)
if dir_list[1] != '' and dir_list[1][0] == '/':
dir = os.path.join(self.finder, 'tiny', dir_list[1][1:])
else:
dir = os.path.join(self.finder, 'tiny', dir_list[1])
self.mkdir(dir)
self.compress(inputFile, f'{dir}/{basename}', width)
else:
print(f'{fileName}不支持该文件类型压缩!')
print('-----------------compress end-----------------')
# 压缩图片
def compress (self, inputFile, outputFile, img_width):
source = tinify.from_file(inputFile)
if img_width is not None:
resized = source.resize(method='scale', width=img_width)
resized.to_file(outputFile)
print(f'{inputFile}压缩成功!')
else:
source.to_file(outputFile)
print(f'{inputFile}压缩成功!')
# 新建文件夹
def mkdir (self, path):
exist = os.path.exists(path)
if not exist:
print(f'建了一个名字叫做{path}的文件夹!')
os.makedirs(path)
return True
else:
print(f'名字叫做{path}的文件夹已经存在了!')
return False
def cli ():
"""command-line interface"""
arguments = docopt(__doc__)
finder = arguments['<dir>']
try:
tinify.validate()
if tinify.compression_count < 500:
print(f'本月已压缩图片次数{tinify.compression_count}')
ci = CompressImg(finder)
ci.get_img_path(finder)
ci.handle_compress()
else:
print(f'本月压缩图片次数不足')
except tinify.Error as e:
print(f'{e}error')
if __name__ == '__main__':
cli()
执行
python3 tinypng.py -d xxx (xxx为路径)
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