我有几个目录,我希望删除超过7天的目录。我已经实现了代码,但它似乎没有工作。谁能看到我错在哪里?
def delete_sandbox():
for directories in os.listdir(os.getcwd()):
if not os.path.isdir(directories) or not os.stat(directories).st_ctime < time.time()-(7*24*3600):
continue
os.chdir(directories)
drop_sandbox()
os.chdir(rootDir)
os.system("sudo rm -rf "+directories)
print 'Folders older than 7 days old dropped and removed'
感谢您的帮助
文件夹沙箱会丢弃,但不会删除。我希望程序进入这些文件夹中的每一个,将沙箱,chnage放回根目录并删除所有旧目录。当我这样做时,文件夹仍然存在。
当我通过存储在文件夹名称中的字符串日期删除目录时,此功能也起作用。但现在我正试图获取时间戳,它已停止工作。
我测试了'rm -rf'+directories
并且它没有删除旧文件夹。当我尝试shutil.rmtree
时,收到错误消息:
Traceback (most recent call last):
File "yep.py", line 21, in <module>
delete_sandbox()
File "yep.py", line 18, in delete_sandbox
shutil.rmtree(directories)
File "/home/build/workspace/downloads/Python-2.6.4/Lib/shutil.py", line 208, in rmtree
onerror(os.listdir, path, sys.exc_info())
File "/home/build/workspace/downloads/Python-2.6.4/Lib/shutil.py", line 206, in rmtree
names = os.listdir(path)
OSError: [Errno 2] No such file or directory: 'Debug'
还有其他方法可以删除这些文件夹吗?
我得到了它的工作,我使用shutil.rmtree
,似乎一切正常。谢谢你的帮助。修改后的代码是:
def delete_sandbox():
for directories in os.listdir(os.getcwd()):
if not os.path.isdir(directories) or not os.stat(directories).st_ctime < time.time()-(sbox_age):
continue
os.chdir(directories)
drop_sandbox()
os.chdir(rootDir)
shutil.rmtree(directories)
print 'Sandboxes older than 7 days old dropped and removed'
delete_sandbox()
答案 0 :(得分:9)
import os
import time
import shutil
numdays = 86400*7
now = time.time()
directory=os.path.join("/home","path")
for r,d,f in os.walk(directory):
for dir in d:
timestamp = os.path.getmtime(os.path.join(r,dir))
if now-numdays > timestamp:
try:
print "removing ",os.path.join(r,dir)
# shutil.rmtree(os.path.join(r,dir)) #uncomment to use
except Exception,e:
print e
pass
else:
print "some message for success"
答案 1 :(得分:1)
os.listdir
返回字符串列表,这些字符串是相对路径。当您使用rootdir时,取决于rootDir,这些路径可能不再有效。
答案 2 :(得分:1)
drop_sandbox()
做什么? (你给我们的函数是delete_sandbox()
)也许你的意思是这是一个递归函数并使用了错误的函数名称os.chdir("..")
rootDir
包含哪些内容? os.listdir
给出了相对路径。如果rootDir
是您搜索的基础,则您列出的目录可能无效。更糟糕的是:如果他们这样做,你可能会删除你仍想要的东西。此外,shutil
包具有您可能想要查看的rmtree
功能。
答案 3 :(得分:0)
虽然接受的答案的一般概念是合理的,但实施有几点不是。
由于我需要更多功能,我接受了你的想法并构建了这个:
class CompRM(object):
exception_list = []
path = None
comparator = None
comparator_target = None
comparator_delete_condition = None
delete_directories = False
delete_files = False
def __init__(self, target_path, comparator, comparator_target='st_mtime', comparator_delete_condition='>', delete_directories=False, delete_files=False):
self.path = target_path
self.comparator = comparator
self.comparator_target = comparator_target
self.comparator_delete_condition = comparator_delete_condition
for directory_path, directory_names, file_names in os.walk(self.path):
if delete_directories is True:
self.walk_names(directory_path, directory_names)
if delete_files is True:
self.walk_names(directory_path, file_names)
if len(self.exception_list) > 0:
raise Exception({'message': 'Encountered exceptions while deleting.', 'debug': self.exception_list})
def walk_names(self, directory_path, names):
for _name in names:
_path = os.path.join(directory_path, _name)
_stat = os.stat(_path)
_value = getattr(_stat, self.comparator_target)
if self.delete_condition_met(_value):
self.safe_remove(_path)
def delete_condition_met(self, value):
if self.comparator > value and self.comparator_delete_condition is '>':
return True
if self.comparator < value and self.comparator_delete_condition is '<':
return True
return False
def safe_remove(self, remove_path):
print 'remove', remove_path
shutil.rmtree(remove_path, onerror=self.register_exception)
def register_exception(self, function, path, exception_info):
self.exception_list.append({
function: function,
path: path,
exception_info: exception_info,
})
您可以这样称呼它:
comprm = CompRM('/tmp', time.time() - 60*60*24*7, comparator_target='st_ctime', delete_files=True)
其中comparator_target是os.stat()中的属性名,用于比较。
此致 贾斯特斯