已安装versioner，但pip install仍提供modulenofound

Question

我已经在我的环境中安装了versioneer模块，通过运行python -m versioneer --version确认了这一点。但是当我pip install cartopy时，我仍然得到一个ModuleNotFoundError，如下所示：

(GIS3) gholl@lce00:~> python -m versioneer --version
versioneer (installer) 0.18
(GIS3) gholl@lce00:~> python -V
Python 3.7.1
(GIS3) gholl@lce00:~> which python
/hpc/uhome/gholl/miniconda3/envs/GIS3/bin/python
(GIS3) gholl@lce00:~> which pip
/hpc/uhome/gholl/miniconda3/envs/GIS3/bin/pip
(GIS3) gholl@lce00:~> pip install cartopy
Collecting cartopy
  Using cached https://files.pythonhosted.org/packages/e5/92/fe8838fa8158931906dfc4f16c5c1436b3dd2daf83592645b179581403ad/Cartopy-0.17.0.tar.gz
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  Complete output from command /hpc/uhome/gholl/miniconda3/envs/GIS3/bin/python /hpc/uhome/gholl/miniconda3/envs/GIS3/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /hpc/gtmp/gholl/.jtmp.lce00.20190206.082115.24214/tmpmcze3ux9:
  Traceback (most recent call last):
    File "/hpc/uhome/gholl/miniconda3/envs/GIS3/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 207, in <module>
      main()
    File "/hpc/uhome/gholl/miniconda3/envs/GIS3/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 197, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "/hpc/uhome/gholl/miniconda3/envs/GIS3/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 54, in get_requires_for_build_wheel
      return hook(config_settings)
    File "/lustre1/gtmp/gholl/.jtmp.lce00.20190206.082115.24214/pip-build-env-q2k4jnrs/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 130, in get_requires_for_build_wheel
      return self._get_build_requires(config_settings, requirements=['wheel'])
    File "/lustre1/gtmp/gholl/.jtmp.lce00.20190206.082115.24214/pip-build-env-q2k4jnrs/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 112, in _get_build_requires
      self.run_setup()
    File "/lustre1/gtmp/gholl/.jtmp.lce00.20190206.082115.24214/pip-build-env-q2k4jnrs/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 126, in run_setup
      exec(compile(code, __file__, 'exec'), locals())
    File "setup.py", line 36, in <module>
      import versioneer
  ModuleNotFoundError: No module named 'versioneer'

  ----------------------------------------
Command "/hpc/uhome/gholl/miniconda3/envs/GIS3/bin/python /hpc/uhome/gholl/miniconda3/envs/GIS3/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /hpc/gtmp/gholl/.jtmp.lce00.20190206.082115.24214/tmpmcze3ux9" failed with error code 1 in /lustre1/gtmp/gholl/.jtmp.lce00.20190206.082115.24214/pip-install-2q1hjb0u/cartopy

怎么可能安装了versioneer模块，但是pip install cartopy仍然找不到它？在

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^{（我知道我将should probably notpip安装到conda环境中，但同时我正在调试一个问题，其中一个完整的conda install要么想要降级Python，要么导致undefined symbol或cannot open shared object file错误，所以这个问题确实有XY problem方面的问题，但是，我还有其他事情要做）}

Answer 1

Cartopy 0.17.0有一个已知的问题，如这里引用的：Unable to install cartopy from pip on MacOSX #1270

您可以改为使用pip install cartopy==0.16.0，也可以尝试使用pip install no-use-pep517 cartopy。或者，当>；=0.19时，这似乎是一个问题，因此您也可以尝试降低pip的级别。在