I've installed a fresh copy of Python 3.5.0b2 and - as recommended - upgraded pip. I don't understand the reason for the permission errors as I am owner and have full control for the temporary directory created.
What can I do to fix this? C:\Apps\Python35>pip install --upgrade pip You are using pip version 7.0.1, however version 7.0.3 is available. You should consider upgrading via the 'pip install --upgrade pip' command. Collecting pip Downloading pip-7.0.3-py2.py3-none-any.whl (1.1MB) 100% |################################| 1.1MB 422kB/s Installing collected packages: pip Found existing installation: pip 7.0.1 Uninstalling pip-7.0.1: Successfully uninstalled pip-7.0.1 Exception: Traceback (most recent call last): File "C:\Apps\Python35\lib\shutil.py", line 377, in _rmtree_unsafe os.unlink(fullname) PermissionError: [WinError 5] Access is denied: 'C:\\Users\\Andreas\\AppData\\Local\\Temp\\pip-xf9kwi7g-uninstall\\apps\\python35\\scripts\\pip.exe' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Apps\Python35\lib\site-packages\pip\basecommand.py", line 223, in main status = self.run(options, args) File "C:\Apps\Python35\lib\site-packages\pip\commands\install.py", line 297, in run root=options.root_path, File "C:\Apps\Python35\lib\site-packages\pip\req\req_set.py", line 633, in install requirement.commit_uninstall() File "C:\Apps\Python35\lib\site-packages\pip\req\req_install.py", line 734, in commit_uninstall self.uninstalled.commit() File "C:\Apps\Python35\lib\site-packages\pip\req\req_uninstall.py", line 153, in commit rmtree(self.save_dir) File "C:\Apps\Python35\lib\site-packages\pip\_vendor\retrying.py", line 49, in wrapped_f return Retrying(*dargs, **dkw).call(f, *args, **kw) File "C:\Apps\Python35\lib\site-packages\pip\_vendor\retrying.py", line 212, in call raise attempt.get() File "C:\Apps\Python35\lib\site-packages\pip\_vendor\retrying.py", line 247, in get six.reraise(self.value[0], self.value[1], self.value[2]) File "C:\Apps\Python35\lib\site-packages\pip\_vendor\six.py", line 659, in reraise raise value File "C:\Apps\Python35\lib\site-packages\pip\_vendor\retrying.py", line 200, in call attempt = Attempt(fn(*args, **kwargs), attempt_number, False) File "C:\Apps\Python35\lib\site-packages\pip\utils\__init__.py", line 89, in rmtree onerror=rmtree_errorhandler) File "C:\Apps\Python35\lib\shutil.py", line 484, in rmtree return _rmtree_unsafe(path, onerror) File "C:\Apps\Python35\lib\shutil.py", line 374, in _rmtree_unsafe _rmtree_unsafe(fullname, onerror) File "C:\Apps\Python35\lib\shutil.py", line 374, in _rmtree_unsafe _rmtree_unsafe(fullname, onerror) File "C:\Apps\Python35\lib\shutil.py", line 374, in _rmtree_unsafe _rmtree_unsafe(fullname, onerror) File "C:\Apps\Python35\lib\shutil.py", line 379, in _rmtree_unsafe onerror(os.unlink, fullname, sys.exc_info()) File "C:\Apps\Python35\lib\site-packages\pip\utils\__init__.py", line 101, in rmtree_errorhandler func(path) PermissionError: [WinError 5] Access is denied: 'C:\\Users\\Andreas\\AppData\\Local\\Temp\\pip-xf9kwi7g-uninstall\\apps\\python35\\scripts\\pip.exe' -- baloand (at) gmail.com -- https://mail.python.org/mailman/listinfo/python-list