如何修复 Python tox ImportError: cannot import name 'cmdline' from 'tox'

问题：

尝试使用 tox 运行单元测试时，你看到以下错误消息：

tox_traceback.txt

Traceback (most recent call last):
    File "/home/uli/.local/bin/tox", line 5, in <module>
        from tox import cmdline
ImportError: cannot import name 'cmdline' from 'tox' (/usr/local/lib/python3.10/dist-packages/tox/__init__.py)

Traceback (most recent call last):
    File "/home/uli/.local/bin/tox", line 5, in <module>
        from tox import cmdline
ImportError: cannot import name 'cmdline' from 'tox' (/usr/local/lib/python3.10/dist-packages/tox/__init__.py)

解决方案

你正在使用旧版本的 tox 作为可执行文件。要找出你正在使用哪个可执行文件，检查错误消息的这一行：

tox_exec_path.txt

File "/home/uli/.local/bin/tox", line 5, in <module>

File "/home/uli/.local/bin/tox", line 5, in <module>

在我们的例子中，可执行文件是

tox_exec_path.txt

/home/uli/.local/bin/tox

/home/uli/.local/bin/tox

删除该文件！

之后，tox 应该正常工作。如果不正常，使用以下命令更新 tox

upgrade_tox.sh

pip install -U tox

pip install -U tox

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