# Requirement already satisfied: numpy in /usr/lib/python3/dist-packages (1.21.5) but you have python 3.11 and numpy is not importable

- **ID:** `python/pip-requirement-already-satisfied-wrong-python`
- **Domain:** python
- **Category:** config_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

pip is resolving against a dist-packages directory for a different Python version. Usually caused by a mismatched pip (e.g. pip points to system Python while you run a pyenv Python), or PYTHONPATH leaking.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 3.9 | active | — | — |
| 3.10 | active | — | — |
| 3.11 | active | — | — |
| 3.12 | active | — | — |

## Workarounds

1. **** (98% success)
   ```
   python3.11 -m pip install numpy
   ```
2. **** (95% success)
   ```
   which -a pip python && pip -V && python -V
   ```
3. **** (98% success)
   ```
   python3.11 -m venv .venv && source .venv/bin/activate && pip install numpy
   ```

## Dead Ends

- **** — Still installs into the wrong interpreter's site-packages. (85% fail)
- **** — Makes things worse by mixing ABI-incompatible C extensions. (95% fail)