python2.7删除文件夹和删除文件代码实例

import os
import re

from os import path
from shutil import rmtree

DEL_DIRS = None
DEL_FILES = r'(.+?\.pyc$|.+?\.pyo$|.+?\.log$)'

def del_dir(p):
"""Delete a directory."""
if path.isdir(p):
rmtree(p)
print('D : %s' % p)

def del_file(p):
"""Delete a file."""
if path.isfile(p):
os.remove(p)
print('F : %s' % p)

def gen_deletions(directory, del_dirs=DEL_DIRS, del_files=DEL_FILES):
"""Generate deletions."""
patt_dirs = None if del_dirs == None else re.compile(del_dirs)
patt_files = None if del_files == None else re.compile(del_files)

for root, dirs, files in os.walk(directory):
if patt_dirs:
for d in dirs:
if patt_dirs.match(d):
yield path.join(root, d)
if patt_files:
for f in files:
if patt_files.match(f):
yield path.join(root, f)

def confirm_deletions(directory):
import Tkinter
import tkMessageBox

root = Tkinter.Tk()
root.withdraw()
res = tkMessageBox.askokcancel("Confirm deletions?",
"Do you really wish to delete?\n\n"
"Working directory:\n%s\n\n"
"Delete conditions:\n(D)%s\n(F)%s"
% (directory, DEL_DIRS, DEL_FILES))
if res:
print('Processing...')
m, n = 0, 0
for p in gen_deletions(directory):
if path.isdir(p):
del_dir(p)
m += 1
elif path.isfile(p):
del_file(p)
n += 1
print('Clean %d dirs and %d files.' % (m, n))
root.destroy()
else:
print('Canceled.')
root.destroy()

root.mainloop()

if __name__ == '__main__':
import sys
argv = sys.argv
directory = argv[1] if len(argv) >= 2 else os.getcwd()
confirm_deletions(directory)
# import subprocess
# subprocess.call("pause", shell=True)