"X的失败建筑车轮"的含义是什么?在点子安装? [英] What is the meaning of "Failed building wheel for X" in pip install?

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问题描述

在SO上,这是一个非常受欢迎的问题,但是我看过的所有答案中,没有一个清楚地解释了此错误的真正含义以及发生的原因.

This is a truly popular question here at SO, but none of the many answers I have looked at, clearly explain what this error really mean, and why it occurs.

造成混乱的一个原因是,例如当您执行pip install pycparser时,首先会收到错误消息:

One source of confusion, is that when (for example) you do pip install pycparser, you first get the error:

Failed building wheel for pycparser

Failed building wheel for pycparser

,然后显示该软件包为的消息:

which is then followed by the message that the package was:

Successfully installed pycparser-2.19 .

Successfully installed pycparser-2.19.

# pip3 install pycparser

Collecting pycparser
  Using cached https://files.pythonhosted.org/packages/68/9e/49196946aee219aead1290e00d1e7fdeab8567783e83e1b9ab5585e6206a/pycparser-2.19.tar.gz
Building wheels for collected packages: pycparser
  Running setup.py bdist_wheel for pycparser ... error
  Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-g_v28hpp/pycparser/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/pip-wheel-__w_f6p0 --python-tag cp36:
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    ...
    File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2349, in resolve
      module = __import__(self.module_name, fromlist=['__name__'], level=0)
  ModuleNotFoundError: No module named 'wheel.bdist_wheel'

  ----------------------------------------
  Failed building wheel for pycparser
  Running setup.py clean for pycparser
Failed to build pycparser
Installing collected packages: pycparser
  Running setup.py install for pycparser ... done
Successfully installed pycparser-2.19

这是怎么回事?

(我想了解某些事情可能会失败但仍会安装,以及您是否可以信任此软件包正常运行?)

(I would like to understand how something can fail but still get installed and whether you can trust this package functioning correctly?)

到目前为止,我发现的最好的部分解释是.

So far the best partial explanation I have found is this.

推荐答案

自此以来,似乎没有人提到我自己.对于上述问题,我自己的解决方案通常是使用以下方法来确保禁用 cached 副本: pip install <package> --no-cache-dir .

Since, nobody seem to mention this apart myself. My own solution to the above problem is most often to make sure to disable the cached copy by using: pip install <package> --no-cache-dir.

这篇关于"X的失败建筑车轮"的含义是什么?在点子安装?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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