pip安装ipython时的EnvironmentError

Question

当我试图在我的Windows上通过pip安装ipython时，我一直收到这个错误。pip对熊猫和其他lib起作用。

ERROR: Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'C:\\Users\\Me\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python37\\site-packages\\jedi\\third_party\\typeshed\\third_party\\2and3\\requests\\packages\\urllib3\\packages\\ssl_match_hostname\\_implementation.pyi'

Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\commands\install.py", line 407, in run
    use_user_site=options.use_user_site,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\req\__init__.py", line 58, in install_given_reqs
    **kwargs
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\req\req_install.py", line 928, in install
    use_user_site=use_user_site, pycompile=pycompile,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\req\req_install.py", line 461, in move_wheel_files
    warn_script_location=warn_script_location,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\wheel.py", line 432, in move_wheel_files
    clobber(source, lib_dir, True)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\wheel.py", line 410, in clobber
    shutil.copyfile(srcfile, destfile)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0\lib\shutil.py", line 121, in copyfile
    with open(dst, 'wb') as fdst:
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\My User\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python37\\site-packages\\jedi\\third_party\\typeshed\\third_party\\2and3\\requests\\packages\\urllib3\\packages\\ssl_match_hostname\\_implementation.pyi'```

Answer 1

我也有过类似的问题。我将注册表项"Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem\LongPathsEnabled“更改为1。

Answer 2

我也有同样的问题。对我来说，文件路径太长了。重命名对象(例如PythonSoftwareFoundation.Python.3.7_3.7.1473.0_x64__qbz5n2kfra8p0内容)以缩短路径。

Answer 3

Windows Python安装程序允许您在安装或升级时更改最大路径长度，这将解决此问题。您还可以查找更改最大路径长度win10，以了解如何更改注册表。