1. 程式人生 > >shutil模塊-高級的文件、文件夾、壓縮包處理模塊

shutil模塊-高級的文件、文件夾、壓縮包處理模塊

decode 運行程序 finish ide python3 finished ice odin ...

  • shutil.copyfileobj(fsrc, fdst[, length])將文件內容拷貝到另一個文件中,length是每次復制的大小
  • guessage.py中內容
    """
    猜年齡遊戲:
    允許用戶最多猜三次,猜了三次後,詢問是都繼續玩,如果輸入Y,可以繼續猜三次,否則退出
    """
    age = 23
    count = 0
    while count < 3:
        try:
            guess_age = int(input("input the age of you think:"))
        except ValueError:
            print("you should input one number!")
            count = count + 1
            continue
    
        if guess_age > 23:
            print("the age you input is too big!")
        elif guess_age < 23:
            print("the age you input is too small!")
        else:
            print("excellent!you are right!")
            break
        count = count + 1
        while count == 3:
            your_choice = input("you only have three chances,would you like to continue(Y|y/N|n):")
            if your_choice.lower() == "y":
                count = 0
            elif your_choice.lower() =="n":
                break
            else:
                print("your input is illegal!input again!")
    "正確的程序運行代碼"
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    shutil.copyfileobj(open("guessage.py","r",encoding="utf-8"),open("guessage_new.py","w",encoding="utf-8",10))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    
    Process finished with exit code 0
    "不加編碼時,有報錯信息"
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    shutil.copyfileobj(open("guessage.py","r"),open("guessage_new.py","w"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    Traceback (most recent call last):
      File "E:/PythonProject/python-test/BasicGrammer/test.py", line 5, in <module>
        shutil.copyfileobj(open("guessage.py","r"),open("guessage_new.py","w"))
      File "D:\software2\Python3\install\lib\shutil.py", line 79, in copyfileobj
        buf = fsrc.read(length)
    UnicodeDecodeError: ‘gbk‘ codec can‘t decode byte 0xae in position 29: illegal multibyte sequence
    
    Process finished with exit code 1
    
    
    guessage_new.py
    """
    猜年齡遊戲:
    允許用戶最多猜三次,猜了三次後,詢問是都繼續玩,如果輸入Y,可以繼續猜三次,否則退出
    """
    age = 23
    count = 0
    while count < 3:
        try:
            guess_age = int(input("input the age of you think:"))
        except ValueError:
            print("you should input one number!")
            count = count + 1
            continue
    
        if guess_age > 23:
            print("the age you input is too big!")
        elif guess_age < 23:
            print("the age you input is too small!")
        else:
            print("excellent!you are right!")
            break
        count = count + 1
        while count == 3:
            your_choice = input("you only have three chances,would you like to continue(Y|y/N|n):")
            if your_choice.lower() == "y":
                count = 0
            elif your_choice.lower() =="n":
                break
            else:
                print("your input is illegal!input again!")
    
    • shutil.copyfile(src, dst)拷貝文件
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    shutil.copyfile("guessage.py","guessage_new.py")#目標文件無需存在
    print("guessage.py",os.stat("guessage.py"))
    print("guessage_new.py",os.stat("guessage_new.py"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    guessage.py os.stat_result(st_mode=33206, st_ino=9007199254741804, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1555571381, st_mtime=1555571381, st_ctime=1555571381)
    guessage_new.py os.stat_result(st_mode=33206, st_ino=7881299347900196, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1557104769, st_mtime=1557104769, st_ctime=1557104769)
    
    Process finished with exit code 0
    
    • shutil.copymode(src, dst)僅拷貝權限。內容、組、用戶均不變
    "程序代碼"
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    shutil.copymode("guessage.py","guessage_new.py")#目標文件必須存在
    #目標文件不存在時
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    Traceback (most recent call last):
      File "E:/PythonProject/python-test/BasicGrammer/test.py", line 5, in <module>
        shutil.copymode("guessage.py","guessage_new.py")
      File "D:\software2\Python3\install\lib\shutil.py", line 144, in copymode
        chmod_func(dst, stat.S_IMODE(st.st_mode))
    FileNotFoundError: [WinError 2] 系統找不到指定的文件。: ‘guessage_new.py‘
    
    Process finished with exit code 1
    #新建一個文件guessage_new.py,內容為空,再運行程序
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    shutil.copymode("guessage.py","guessage_new.py")
    print("guessage.py",os.stat("guessage.py"))
    print("guessage_new.py",os.stat("guessage_new.py"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    guessage.py os.stat_result(st_mode=33206, st_ino=9007199254741804, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1555571381, st_mtime=1555571381, st_ctime=1555571381)
    guessage_new.py os.stat_result(st_mode=33206, st_ino=2533274790397796, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=61, st_atime=1557104202, st_mtime=1557104202, st_ctime=1557104202)
    
    Process finished with exit code 0
    
    • shutil.copystat(src, dst)僅拷貝狀態的信息,包括:mode bits, atime, mtime, flags
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    shutil.copystat("guessage.py","guessage_new.py") #目標文件必須存在
    print("guessage.py",os.stat("guessage.py"))
    print("guessage_new.py",os.stat("guessage_new.py"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    guessage.py os.stat_result(st_mode=33206, st_ino=9007199254741804, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1555571381, st_mtime=1555571381, st_ctime=1555571381)
    guessage_new.py os.stat_result(st_mode=33206, st_ino=2814749767108452, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=61, st_atime=1555571381, st_mtime=1555571381, st_ctime=1557104576)
    
    Process finished with exit code 0
    
    • shutil.copy(src, dst)拷貝文件和權限
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    shutil.copy("guessage.py","guessage_new.py")#目標文件可以不存在
    print("guessage.py",os.stat("guessage.py"))
    print("guessage_new.py",os.stat("guessage_new.py"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    guessage.py os.stat_result(st_mode=33206, st_ino=9007199254741804, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1555571381, st_mtime=1555571381, st_ctime=1555571381)
    guessage_new.py os.stat_result(st_mode=33206, st_ino=6473924464346978, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1557104716, st_mtime=1557104716, st_ctime=1557104716)
    
    Process finished with exit code 0
    
    • shutil.copy2(src, dst)拷貝文件和狀態信息
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    shutil.copy2("guessage.py","guessage_new.py")
    print("guessage.py",os.stat("guessage.py"))
    print("guessage_new.py",os.stat("guessage_new.py"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    guessage.py os.stat_result(st_mode=33206, st_ino=9007199254741804, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1555571381, st_mtime=1555571381, st_ctime=1555571381)
    guessage_new.py os.stat_result(st_mode=33206, st_ino=7318349394478946, st_dev=3466358229, st_nlink=1, st_uid=0, st_gid=0, st_size=941, st_atime=1555571381, st_mtime=1555571381, st_ctime=1557104918)
    
    Process finished with exit code 0
    
    • shutil.ignore_patterns(*patterns)
    • shutil.copytree(src, dst, symlinks=False, ignore=None)遞歸的去拷貝文件夾
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    
    # 目標目錄不能存在,註意對folder2目錄父級目錄要有可寫權限,ignore的意思是排除
    shutil.copytree(‘ee‘, ‘new_ee‘, ignore=shutil.ignore_patterns(‘*.pyc‘, ‘tmp*‘))
    print(os.listdir("ee"))
    print(os.listdir("new_ee"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    [‘eee‘]
    [‘eee‘]
    
    Process finished with exit code 0
    
    • shutil.rmtree(path[, ignore_errors[, onerror]])遞歸的去刪除文件
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    
    shutil.rmtree(‘new_ee‘)
    print(os.listdir("ee"))
    print(os.listdir("new_ee"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    Traceback (most recent call last):
    [‘eee‘]
      File "E:/PythonProject/python-test/BasicGrammer/test.py", line 10, in <module>
        print(os.listdir("new_ee"))
    FileNotFoundError: [WinError 3] 系統找不到指定的路徑。: ‘new_ee‘
    
    Process finished with exit code 1
    
    • shutil.move(src, dst)遞歸的去移動文件,它類似mv命令,其實就是重命名。
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    
    shutil.move(‘ee‘,‘new_ee‘)
    print(os.listdir("ee"))#move之後,源文件就不存在了
    print(os.listdir("new_ee"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    Traceback (most recent call last):
      File "E:/PythonProject/python-test/BasicGrammer/test.py", line 9, in <module>
        print(os.listdir("ee"))
    FileNotFoundError: [WinError 3] 系統找不到指定的路徑。: ‘ee‘
    
    Process finished with exit code 1
    
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    import os
    shutil.move(‘new_ee‘,‘mkdir‘) #可以移到另一個文件夾中
    print(os.listdir("mkdir"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    [‘new_ee‘]
    
    Process finished with exit code 0
    
    • shutil.make_archive(base_name, format,...)創建壓縮包並返回文件路徑,例如:zip、tar
    base_name: 壓縮包的文件名,也可以是壓縮包的路徑。只是文件名時,則保存至當前目錄,否則保存至指定路徑,
    如 data_bak =>保存至當前路徑
    如:/tmp/data_bak =>保存至/tmp/
    
    format: 壓縮包種類,“zip”, “tar”, “bztar”,“gztar”
    root_dir: 要壓縮的文件夾路徑(默認當前目錄)
    owner: 用戶,默認當前用戶
    group: 組,默認當前組
    logger: 用於記錄日誌,通常是logging.Logger對象
    
    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: vita
    import shutil
    #將 test2 下的文件打包放置當前程序目錄
    import shutil
    import os
    ret = shutil.make_archive("test2_bak", ‘gztar‘, root_dir=‘test2‘)#目標的壓縮包可以是已經存在的
    print(os.listdir())
    #將 test2下的文件打包放置 mkdir目錄
    import shutil
    ret = shutil.make_archive("mkdir/test2_bak", ‘gztar‘, root_dir=‘test2‘)
    print(os.listdir("mkdir"))
    
    E:\PythonProject\python-test\venvP3\Scripts\python.exe E:/PythonProject/python-test/BasicGrammer/test.py
    [‘.idea‘, ‘guessage.py‘, ‘guessage_new.py‘, ‘mkdir‘, ‘requirements.txt‘, ‘test.py‘, ‘test2‘, ‘test2_bak.tar.gz‘, ‘__pycache__‘, ‘寫文件.txt‘, ‘寫文件.txt.tmp‘, ‘格式化.py‘, ‘猜年齡的遊戲.jpg‘, ‘讀文件.txt‘]
    [‘new_ee‘, ‘test2_bak.tar.gz‘]
    
    Process finished with exit code 0
    
    shutil 對壓縮包的處理是調用 ZipFile 和 TarFile 兩個模塊來進行的,詳細:
    zipfile壓縮&解壓縮
    import zipfile
    
    # 壓縮
    z = zipfile.ZipFile(‘laxi.zip‘, ‘w‘)
    z.write(‘a.log‘)
    z.write(‘data.data‘)
    z.close()
    
    # 解壓
    z = zipfile.ZipFile(‘laxi.zip‘, ‘r‘)
    z.extractall(path=‘.‘)
    z.close()
    
    tarfile壓縮&解壓縮
    import tarfile
    
    # 壓縮,egon.tar這個壓縮包可以是不存在的,並且可對文件夾遞歸放到壓縮包中
    >>> t=tarfile.open(‘/tmp/egon.tar‘,‘w‘)
    >>> t.add(‘/test1/a.py‘,arcname=‘a.bak‘)
    >>> t.add(‘/test1/b.py‘,arcname=‘b.bak‘)
    >>> t.close()
    
    # 解壓
    >>> t=tarfile.open(‘/tmp/egon.tar‘,‘r‘)
    >>> t.extractall(‘/egon‘)
    >>> t.close()

    shutil模塊-高級的文件、文件夾、壓縮包處理模塊