安装Python包时遭遇UnicodeDecodeError错误求助

Hey there, let's work through this pip install issue you're facing. I spent a lot of time troubleshooting Python 2.7 and Ubuntu 14.04 setups back in the day, so here are the most likely fixes to try:

Common Causes & Solutions #

• Upgrade pip to the last Python 2.7-compatible version
  Ubuntu 14.04 ships with a very outdated pip version that can't handle modern package distributions or index changes. First, upgrade it to the final version that supports Python 2.7:

  sudo pip install --upgrade pip==20.3.4
  

  Version 20.3.4 is the last release of pip that works with Python 2.7—any newer versions drop Python 2 support entirely.

• Install a legacy version of your target package
  If upgrading pip doesn't fix things, chances are the package you're trying to install has dropped Python 2.7 support in its latest releases. You'll need to find the last version of the package that still supports Python 2.7, then install that specific version:

  pip install your-package-name==x.y.z
  

  Replace your-package-name with the actual name of the package, and x.y.z with the last Python 2.7-compatible version (you can find this by checking the package's release notes or version history).

• Install missing system build dependencies
  Many Python packages (especially those with C extensions) require system-level tools to compile. Ubuntu 14.04's default setup might be missing these. Run this to install the essential build tools:

  sudo apt-get update && sudo apt-get install build-essential python-dev libssl-dev libffi-dev
  

  This covers most common compilation requirements for Python packages on Ubuntu 14.04.

• Clear pip's cache
  Corrupted cached package files can sometimes cause installation failures. Clear the cache and try again:

  pip cache purge
  

If your truncated error message points to a specific missing dependency or a different issue, feel free to share the full traceback and the name of the package you're trying to install—we can narrow it down further!

内容的提问来源于stack exchange，提问作者Stefan