Ubuntu系统下Python 3.10的pip无法正常使用问题求助

Hey there! Let's work through this pip error you're hitting. The core issue here is that the system-provided pip isn't properly compatible with your Python 3.10 installation, or the pip package itself has become corrupted—especially the bundled dependencies like html5lib that pip relies on in its pip._vendor directory. Installing python3.10-html5lib didn't help because that's a system-level library, not the bundled version pip expects to use internally.

Here are the steps to resolve this:

• First, remove the conflicting system-wide pip package to eliminate version mismatches:

  sudo apt remove --purge python3-pip
  

  This clears out the problematic pip tied to Ubuntu's default Python version, which was causing the conflict with your Python 3.10 setup.

• Reinstall pip specifically for Python 3.10 using Python's built-in ensurepip tool:

  python3.10 -m ensurepip --upgrade
  

  This command installs the official, version-matched pip for Python 3.10 and upgrades it to the latest stable release, ensuring all bundled dependencies (like html5lib) are intact.

• If the above step doesn't work, try installing the Python 3.10-specific pip package via apt:

  sudo apt install python3.10-pip
  

  This pulls a pre-packaged pip tailored for Python 3.10 directly from Ubuntu's repositories.

• Finish by upgrading pip to the latest version to lock in all fixes:

  python3.10 -m pip install --upgrade pip
  

Once you've completed these steps, test your original installation command again:

python3.10 -m pip install <library name>

This should resolve the html5lib import error, as you'll now be using a pip version fully aligned with Python 3.10 and equipped with all its required internal dependencies.

内容的提问来源于stack exchange，提问作者Christopher Coco