一.zip压缩模块
1.创建压缩包
zf = zipfile.ZipFile("ceshi0512.zip","w",zipfile.ZIP_DEFLATED)
2.把文件写入到压缩包当中
write(路径,别名)
3.关闭压缩文件
zf.close()
4.解压文件
zf = zipfile.ZipFile("ceshi0512.zip","r")
5.追加文件
zf = zipfile.ZipFile("ceshi0512.zip","a",zipfile.ZIP_DEFLATED)
zf.write(r"E:\python30\day17\ceshi100\4.php","4.py")
zf.close()
6.使用with语法进行优化 (可以省略close操作) 推荐
with zipfile.ZipFile("ceshi0512.zip","a",zipfile.ZIP_DEFLATED) as zf:
zf.write(r"E:\python30\day17\ceshi100\4.php","6666.py")
7.查看文件
with zipfile.ZipFile("ceshi0512.zip","r",zipfile.ZIP_DEFLATED) as zf:
lst = zf.namelist()
print(lst)
二.tarfil压缩模块
.tar .tar.gz .tar.bz2
import tarfile
官方说法, .tar.bz2的压缩算法,包的大小最小
1.创建tar压缩包
tf = tarfile.open("ceshi0513.tar","w",encoding="utf-8")
2.添加文件打包
add(路径,别名)
tf.add(r"E:\python30\day17\ceshi100\1.txt","1.txt")
3.关闭文件
tf.close()
4.解压文件
extractall(路径) 解压所有文件到某个路径下
tf.extractall("ceshi500")
extract(文件,路径) 解压指定的某个文件到某个路径下
tf.extract("222","ceshi600")
tf.close()
5.追加文件
"""只能对w模式下的打包进行追加,其他的模式不行"""
6.查看压缩包
with tarfile.open("ceshi0513.tar","r",encoding="utf-8") as tf:
lst = tf.getnames()
print(lst)
7.对tarfile 不能追加的文件的bug 进行优化
tarfile 的解决方法 文件或者文件夹都可以通过add放到压缩包中
(1) 先解压原来的压缩包
(2) 把要追加的内容放进去
(3) 过滤数据,重新打包
import os
pathvar = os.getcwd()
print(pathvar) # E:\python30\day17
# 压缩包的路径
pathvar1 = os.path.join(pathvar,"ceshi0515.tar.bz2")
print(pathvar1)
# 解压文件夹的路径
pathvar2 = os.path.join(pathvar,"ceshi0515")
print(pathvar2)
# 1.先解压压缩包
with tarfile.open(pathvar1,"r",encoding="utf-8") as tf:
tf.extractall(pathvar2)
# 2.把追加的内容放进来
import shutil
shutil.copy(r"E:\python30\day17\ceshi100\4.php",pathvar2)
# 3.过滤数据,重新打包
"""过滤掉222这个文件,剩下的文件重新打包"""
lst = os.listdir(pathvar2)
print(lst) # ['1.txt', '222', '4.php', 'tmp']
with tarfile.open(pathvar1,"w:bz2",encoding="utf-8") as tf:
for i in lst:
# print(i)
pathnew = os.path.join(pathvar2,i)
print(pathnew)
# add(路径,别名)
if i != "222":
tf.add(pathnew,i)