python - 错误: Could not build wheels for pendulum which use PEP 517 and cannot be installed directly

Question

请帮忙。尝试了大多数我可以在网上找到的解决方案，并且作为最后的选择，将其发布在stackoverflow上。

尝试安装Pendulum软件包时出现以下错误:

C:\WINDOWS\system32>pip install pendulum Collecting pendulum   Using cached pendulum-2.1.0.tar.gz (80 kB)   Installing build dependencies ... done   Getting requirements to build wheel ... done
    Preparing wheel metadata ... done Collecting pytzdata>=2018.3   Using cached pytzdata-2019.3-py2.py3-none-any.whl (489 kB) Requirement already satisfied: python-dateutil<3.0,>=2.6 in c:\python\python38-32\lib\site-packages (from pendulum) (2.8.1) Requirement already satisfied: six>=1.5 in c:\users\cuser\appdata\roaming\python\python38\site-packages (from python-dateutil<3.0,>=2.6->pendulum) (1.14.0) Building wheels for collected packages: pendulum   Building wheel for pendulum (PEP 517) ... error   ERROR: Command errored out with exit status 1:    command: 'c:\python\python38-32\python.exe' 'c:\python\python38-32\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\cuser\AppData\Local\Temp\tmpkbrn91g9'
       cwd: C:\Users\cuser\AppData\Local\Temp\pip-install-q2vfs50o\pendulum   Complete output (24 lines):   Traceback (most recent call last):
    File "setup.py", line 2, in <module>
      from setuptools import setup   ModuleNotFoundError: No module named 'setuptools'   Traceback (most recent call last):
    File "c:\python\python38-32\lib\site-packages\pip\_vendor\pep517\_in_process.py", line 257, in <module>
      main()
    File "c:\python\python38-32\lib\site-packages\pip\_vendor\pep517\_in_process.py", line 240, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "c:\python\python38-32\lib\site-packages\pip\_vendor\pep517\_in_process.py", line 181, in build_wheel
      return _build_backend().build_wheel(wheel_directory, config_settings,
    File "C:\Users\cuser\AppData\Local\Temp\pip-build-env-nvwxlarh\overlay\Lib\site-packages\poetry\core\masonry\api.py", line 57, in build_wheel
      return unicode(WheelBuilder.make_in(poetry, Path(wheel_directory)))
    File "C:\Users\cuser\AppData\Local\Temp\pip-build-env-nvwxlarh\overlay\Lib\site-packages\poetry\core\masonry\builders\wheel.py", line 56, in make_in
      wb.build()
    File "C:\Users\cuser\AppData\Local\Temp\pip-build-env-nvwxlarh\overlay\Lib\site-packages\poetry\core\masonry\builders\wheel.py", line 82, in build
      self._build(zip_file)
    File "C:\Users\cuser\AppData\Local\Temp\pip-build-env-nvwxlarh\overlay\Lib\site-packages\poetry\core\masonry\builders\wheel.py", line 102, in _build
      self._run_build_command(setup)
    File "C:\Users\cuser\AppData\Local\Temp\pip-build-env-nvwxlarh\overlay\Lib\site-packages\poetry\core\masonry\builders\wheel.py", line 130, in _run_build_command
      subprocess.check_call(
    File "c:\python\python38-32\lib\subprocess.py", line 364, in check_call
      raise CalledProcessError(retcode, cmd)   subprocess.CalledProcessError: Command '['c:\\python\\python38-32\\python.exe', 'setup.py', 'build', '-b', 'build']' returned non-zero exit status 1.  
----------------------------------------   ERROR: Failed building wheel for pendulum Failed to build pendulum ERROR: Could not build wheels for pendulum which use PEP 517 and cannot be installed directly

The current python version and package versions are as below:

    Python 3.8.2

    Package           Version
    ----------------- -------
    astroid           2.3.3
    colorama          0.4.3
    cx-Oracle         7.3.0
    ez-setup          0.9
    isort             4.3.21
    lazy-object-proxy 1.4.3
    mccabe            0.6.1
    numpy             1.18.2
    pandas            1.0.3
    pip               20.0.2
    pylint            2.4.4
    python-dateutil   2.8.1
    pytz              2019.3
    setuptools        46.1.3
    six               1.14.0
    SQLAlchemy        1.3.15
    wheel             0.34.2
    wrapt             1.11.2


OS version:

    OS Name:                   Microsoft Windows 10 Enterprise
    OS Version:                10.0.17763 N/A Build 17763

Answer 1

这似乎是在摆锤配置方面存在两个错误的结果。

第一个错误是Windows轮子的名称错误。参见https://github.com/sdispater/pendulum/issues/456。

因此，Pip试图从源头开始回落到构建。我不确定这里到底出了什么问题，但是Pendulum中的某些配置错误，因此安装不适用于现代版本的Pip。参见https://github.com/sdispater/pendulum/issues/454。

有两种解决方法:

将Pip降级到版本18.1。这对我个人来说是有效的。

将Poetry安装到您的项目环境中，然后使用--no-build-isolation选项安装Pendulum，如@Wes在此处所述:https://github.com/sdispater/pendulum/issues/454#issuecomment-605519477

我宁愿暂时将Pip降级，直到此问题解决为止，而不是弄乱我的项目环境。所以我选择了第一个选项。在解决此问题之前，您应该选择对您的工作流程更有意义的选择。