我已经完成了一个全新的Windows 10安装,安装了python、cygwin和一个名为ConEmu的改进控制台。在安装Python3.4.3之后,我执行:
pip install -U pip
得到了这个错误。
File "C:\Anwendungsentwicklung\Python34\lib\site-packages\pip\utils\__init__.py", line 70, in rmtree_errorhandler
os.makedirs(path)
PermissionError: [WinError 5] Zugriff verweigert: 'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\pip-dxm8d3xg-uninstall\\anwendungsentwicklung\\python34\\scripts\\pip.exe'
我使用预定义的管理员帐户登录,Python的temp dir和installation dir(C:\ Anwendungsentwicklung\Python34)具有完全访问权限。
请允许我通过设置不同的权限来测试所有变体,但Windows不允许我这样做。我甚至在“安全”选项卡中添加了“所有人”,但这没有帮助,尽管我记得它是用这个“技巧”在Windows7上工作的。一定是Windows 10有问题。有人能帮忙吗??
这是完整的回溯
Exception:
Traceback (most recent call last):
File "c:\anwendungsentwicklung\python34\lib\shutil.py", line 372, in _rmtree_unsafe
os.unlink(fullname)
PermissionError: [WinError 5] Zugriff verweigert: 'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\pip-k7g0hd6t- uninstall\\anwendungsentwicklung\\python34\\scripts\\pip.exe'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "c:\anwendungsentwicklung\python34\lib\site-packages\pip\basecommand.py", line 232, in main
logger.critical('Operation cancelled by user')
File "c:\anwendungsentwicklung\python34\lib\site-packages\pip\commands\install.py", line 347, in run
ensure_dir(options.target_dir)
File "c:\anwendungsentwicklung\python34\lib\site-packages\pip\req\req_set.py", line 560, in install
missing_requested = sorted(
File "c:\anwendungsentwicklung\python34\lib\site-packages\pip\req\req_install.py", line 677, in commit_uninstall
logger.debug(
File "c:\anwendungsentwicklung\python34\lib\site-packages\pip\req\req_uninstall.py", line 153, in commit
self.save_dir = None
File "c:\anwendungsentwicklung\python34\lib\site-packages\pip\utils\__init__.py", line 58, in rmtree
SUPPORTED_EXTENSIONS = ZIP_EXTENSIONS + TAR_EXTENSIONS
File "c:\anwendungsentwicklung\python34\lib\shutil.py", line 484, in rmtree
return _rmtree_unsafe(path, onerror)
File "c:\anwendungsentwicklung\python34\lib\shutil.py", line 368, in _rmtree_unsafe
_rmtree_unsafe(fullname, onerror)
File "c:\anwendungsentwicklung\python34\lib\shutil.py", line 368, in _rmtree_unsafe
_rmtree_unsafe(fullname, onerror)
File "c:\anwendungsentwicklung\python34\lib\shutil.py", line 368, in _rmtree_unsafe
_rmtree_unsafe(fullname, onerror)
File "c:\anwendungsentwicklung\python34\lib\shutil.py", line 376, in _rmtree_unsafe
print(fullname)
File "c:\anwendungsentwicklung\python34\lib\site-packages\pip\utils\__init__.py", line 70, in rmtree_errorhandler
try:
PermissionError: [WinError 5] Zugriff verweigert: 'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\pip-k7g0hd6t-uninstall\\anwendungsentwicklung\\python34\\scripts\\pip.exe'
现在我在“c:\ anwendungsentwicklung\python34\lib\shutil.py”中添加了一个断点:
# version vulnerable to race conditions
def _rmtree_unsafe(path, onerror):
try:
if os.path.islink(path):
# symlinks to directories are forbidden, see bug #1669
raise OSError("Cannot call rmtree on a symbolic link")
except OSError:
onerror(os.path.islink, path, sys.exc_info())
# can't continue even if onerror hook returns
return
names = []
try:
names = os.listdir(path)
except OSError:
onerror(os.listdir, path, sys.exc_info())
for name in names:
fullname = os.path.join(path, name)
try:
mode = os.lstat(fullname).st_mode
except OSError:
mode = 0
if stat.S_ISDIR(mode):
_rmtree_unsafe(fullname, onerror)
else:
try:
#import pdb
os.unlink(fullname)
#pdb.set_trace()
except OSError:
import pdb; pdb.set_trace()
print(fullname)
import getpass
print(getpass.getuser())
onerror(os.unlink, fullname, sys.exc_info())
try:
os.rmdir(path)
except OSError:
onerror(os.rmdir, path, sys.exc_info())
当我执行时
os.unlink(fullname) # 'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\pip-k7g0hd6t- uninstall\\anwendungsentwicklung\\python34\\scripts\\pip.exe'
我得到这个PermissionError
,所以我用
oct(os.stat(fullname)[ST_MODE])
它返回:“0o100777”
如果我是对的,这意味着所有人(所有者、组和其他人)都可以获得完全许可。
我很沮丧:/ 有人有主意吗?
我也有同样的问题。如果您右键单击运行cmd“as administrator”,它就会工作。
如前所述,here,这是一个Windows限制。简而言之,pip.exe文件正在使用,因此被锁定,无法删除。使用
python -m pip install --upgrade pip
。在相同情况下,我的第一个选择是使用管理员权限启动控制台。您可以从“开始”菜单中执行此操作,或者如果您使用的是ConEmu/Cmder,只需以管理员身份运行新的instance/tab即可。
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