Programming Tutorials

  If you have recently upgraded to Ubuntu 24.04, Debian 12, or a derived Linux distribution like Raspberry Pi OS, you have likely encountered a blocking error when running   pip install . You type  pip install requests , expecting a quick download, but instead receive this fatal message: error: externally-managed-environment × This environment is externally managed ╰─> To install Python packages system-wide, try apt install python3-xyz, where xyz is the package you are trying to install. If you wish to install a non-Debian-packaged Python package, create a virtual environment using python3 -m venv path/to/venv. ... This is not a bug. It is a deliberate feature implementation of  PEP 668 . This guide explains why this change occurred and provides the correct, engineering-approved workflows to fix it without breaking your operating system. The Root Cause: Why PEP 668 Exists To understand the fix, you must understand the conflict. On Li...