This pip error means Python could not find a pre-built package (wheel) for your system and failed while trying to compile it from source. It is almost always fixed by upgrading pip/setuptools/wheel or installing the missing compiler/system libraries.
This Python error means the interpreter can’t find a module you tried to import. It’s almost always caused by a missing package, the wrong Python environment, a typo, or a broken project structure.
This error appears on newer Linux distros (Debian 12+, Ubuntu 23.04+), macOS Homebrew Python, and some Docker images because pip now blocks system-wide installs to protect the OS. Here are the four confirmed fixes, from safest to riskiest.