这是一个非常受欢迎的问题,但我所看到的许多答案中,没有一个能清楚地解释这个错误的真正含义,以及它为什么会发生。
混淆的一个来源是,当(例如)你执行pip install pycparser
时,你首先得到错误:
Failed building wheel for pycparser
后面跟着一个消息,这个包是:
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?
(我想了解一些东西是如何失败的,但仍然可以安装,以及您是否可以相信这个包正常运行?)
到目前为止,我找到的最好的部分解释是这。