如果你确定你想要删除整个目录树，并且不再对目录的内容感兴趣，那么爬行整个目录树是愚蠢的…只需从python中调用本机操作系统命令即可。它将更快，更有效，更少的内存消耗。

RMDIR c:\blah /s /q 

例如*那晚尼克斯。

rm -rf /home/whatever 

在python中，代码看起来像..

import sys
import os

mswindows = (sys.platform == "win32")

def getstatusoutput(cmd):
    """Return (status, output) of executing cmd in a shell."""
    if not mswindows:
        return commands.getstatusoutput(cmd)
    pipe = os.popen(cmd + ' 2>&1', 'r')
    text = pipe.read()
    sts = pipe.close()
    if sts is None: sts = 0
    if text[-1:] == '\n': text = text[:-1]
    return sts, text


def deleteDir(path):
    """deletes the path entirely"""
    if mswindows: 
        cmd = "RMDIR "+ path +" /s /q"
    else:
        cmd = "rm -rf "+path
    result = getstatusoutput(cmd)
    if(result[0]!=0):
        raise RuntimeError(result[1])

在我的情况下，删除的唯一方法是使用所有的可能性，因为我的代码应该运行cmd.exe或powershell.exe。如果是你的情况，只需要用下面的代码创建一个函数就可以了:

        #!/usr/bin/env python3

        import shutil
        from os import path, system
        import sys

        # Try to delete the folder ---------------------------------------------
        if (path.isdir(folder)):
            shutil.rmtree(folder, ignore_errors=True)

        if (path.isdir(folder)):
            try:
                system("rd -r {0}".format(folder))
            except Exception as e:
                print("WARN: Failed to delete => {0}".format(e),file=sys.stderr)

        if (path.isdir(self.backup_folder_wrk)):
            try:
                system("rd /s /q {0}".format(folder))
            except Exception as e:
                print("WARN: Failed to delete => {0}".format(e),file=sys.stderr)

        if (path.isdir(folder)):
            print("WARN: Failed to delete {0}".format(folder),file=sys.stderr)
        # -------------------------------------------------------------------------------------

import shutil
shutil.rmtree(dest, ignore_errors=True)

你可以使用os。简单的系统命令:

import os
os.system("rm -rf dirname")

显然，它实际上调用系统终端来完成这项任务。

在python 3.4中，你可以使用:

import pathlib

def delete_folder(pth) :
    for sub in pth.iterdir() :
        if sub.is_dir() :
            delete_folder(sub)
        else :
            sub.unlink()
    pth.rmdir() # if you just want to delete the dir content but not the dir itself, remove this line

其中PTH是一个pathlib。路径实例。不错，但可能不是最快的。

基于kkubasik的答案，在删除之前检查文件夹是否存在，更健壮

import shutil
def remove_folder(path):
    # check if folder exists
    if os.path.exists(path):
         # remove if exists
         shutil.rmtree(path)
    else:
         # throw your exception to handle this special scenario
         raise XXError("your exception") 
remove_folder("/folder_name")