时间戳

首页 > 解决方案 > 从 pexpect 运行已安装的软件包

python - 从 pexpect 运行已安装的软件包

问题描述

我已经下载了pyocd并成功构建了它。现在我可以从任何位置从命令行运行该工具。但是，当尝试使用 pexpect 运行它时，它会显示以下错误：

Traceback (most recent call last):
  File "c:\Users\elephant\AppData\Local\Programs\Python\Python37-32\Scripts\pyocd-script.py", line 6, in <module>
    from pkg_resources import load_entry_point
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 668, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 638, in _load_backward_compatible
  File "C:\Projects\runner\mytest\venv\lib\site-packages\setuptools-39.1.0-py3.7.egg\pkg_resources\__init__.py", line 3086, in <module>
  File "C:\Projects\runner\mytest\venv\lib\site-packages\setuptools-39.1.0-py3.7.egg\pkg_resources\__init__.py", line 3070, in _call_aside
  File "C:\Projects\runner\mytest\venv\lib\site-packages\setuptools-39.1.0-py3.7.egg\pkg_resources\__init__.py", line 3099, in _initialize_master_working_set
  File "C:\Projects\runner\mytest\venv\lib\site-packages\setuptools-39.1.0-py3.7.egg\pkg_resources\__init__.py", line 574, in _build_master
  File "C:\Projects\runner\mytest\venv\lib\site-packages\setuptools-39.1.0-py3.7.egg\pkg_resources\__init__.py", line 892, in require
  File "C:\Projects\runner\mytest\venv\lib\site-packages\setuptools-39.1.0-py3.7.egg\pkg_resources\__init__.py", line 778, in resolve
pkg_resources.DistributionNotFound: The 'pyocd==0.14.1.dev277+dirty' distribution was not found and is required by the application

请帮助理解什么是错误的以及为什么它可以从命令行工作？

标签： pythonpython-3.xpexpectpkg-resources

解决方案

问题是我试图生成pyocd.exe并且pexpect找不到包。我将线路更改为python -m pyocd，它工作正常。我是 Python 新手，错误地认为 exe 是编译代码，就像 Windows 中的其他 exe 文件一样。但是，这只是使用 Python 运行包的指令。

推荐阅读