好的,那么,我在虚拟环境中运行我的项目包。我通常通过PyCharm管理这些包。 PyCharm告诉我已安装Pip 9.0.1。但当我从命令行运行虚拟环境并打印pip版本时,它显示为7.1.0。如果我尝试使用 pip install --upgrade pip
进行升级,则会出现错误。
Collecting pip
Using cached pip-9.0.1-py2.py3-none-any.whl
Installing collected packages: pip
Found existing installation: pip 7.1.0
Uninstalling pip-7.1.0:
Successfully uninstalled pip-7.1.0
Rolling back uninstall of pip
Exception:
Traceback (most recent call last):
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\basecommand.py", line 223, in main
status = self.run(options, args)
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\commands\install.py", line 299, in run
root=options.root_path,
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\req\req_set.py", line 646, in install
**kwargs
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\req\req_install.py", line 813, in install
self.move_wheel_files(self.source_dir, root=root)
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\req\req_install.py", line 1008, in move_wheel_files
isolated=self.isolated,
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\wheel.py", line 449, in move_wheel_files
generated.extend(maker.make(spec))
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\_vendor\distlib\scripts.py", line 323, in make
self._make_script(entry, filenames, options=options)
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\_vendor\distlib\scripts.py", line 227, in _make_script
self._write_script(scriptnames, shebang, script, filenames, ext)
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\_vendor\distlib\scripts.py", line 163, in _write_script
launcher = self._get_launcher('t')
File "c:\python-virtualenv\arcus\lib\site-packages\pip-7.1.0-py3.5.egg\pip\_vendor\distlib\scripts.py", line 302, in _get_launcher
result = finder(distlib_package).find(name).bytes
AttributeError: 'NoneType' object has no attribute 'bytes'
我的系统中pip的版本是9.0.1。但我不明白发生了什么事情。希望有人能够解决这个问题。我已经尝试过卸载和重新安装它,也尝试使用wheel来安装,但都没有成功。
顺便说一下,我使用的是Windows系统。
pip
。当你使用virtualenv
时,默认会安装Python(你可以选择的版本)和相应的pip。然后在虚拟环境中,你可以随意升级pip
。 - oliversm