我已经完成了 Windows 10 的全新安装,并安装了 Python、Cygwin 和一个改进的控制台 ConEmu。在安装 Python 3.4.3 后,我执行了以下操作:
pip install -U pip
然后遇到了这个错误。
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,临时目录和Python安装目录(C:\Anwendungsentwicklung\Python34)都具有完全访问权限。
我已经尝试设置不同的权限,但Windows不允许我这样做。我甚至在安全选项卡中添加了“每个人”,但这并没有帮助,尽管我记得在Windows 7中使用这种“技巧”是有效的。这一定是Windows 10的问题。有人可以帮忙吗?
这是完整的跟踪信息:
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'
我遇到了这个PermissionError
错误,因此我使用以下命令检查了该.exe文件的权限:
oct(os.stat(fullname)[ST_MODE])
它返回:'0o100777'
如果我没错的话,这意味着每个人(所有者、组和其他人)都拥有完全权限。
我很沮丧 :/ 有人有主意吗?