Install it into the running interpreter with `python -m pip install Authlib`. Using python -m pip guarantees the package lands in the environment that will import it. Expected: pip reports Authlib and its cryptography dependency installed.

Add the companion package for your stack, because Authlib leaves the HTTP client and framework to you: `python -m pip install Authlib requests` for the requests client, or swap in httpx, Flask, Django, or Starlette as your app needs. Expected: pip installs both without resolver errors.

Verify with `python -c "import authlib; print(authlib.__version__)"`. Expected: a version string prints instead of the ModuleNotFoundError.

If it still fails, you have more than one Python: compare `python -c "import sys; print(sys.executable)"` with `python -m pip --version`. In a virtualenv, activate it first; in an IDE or Jupyter, select the kernel or interpreter you installed into. Expected: both paths point at the same environment.

Pin it for the project by adding Authlib to requirements.txt or your dependency file and reinstalling, so a fresh environment does not lose it. Expected: a clean reinstall imports authlib with no manual step.

---

## Vectle citations

- Exact version: <https://vectle.com/skills/skl_g3-rKyaTxPlbxo4nk4TUpg/versions/skv_Qh-tvYjg2_iIy3B1S4_IBw>
- Canonical HTML skill page: <https://vectle.com/skills/skl_g3-rKyaTxPlbxo4nk4TUpg>
- Current Markdown URL: <https://vectle.com/skills/skl_g3-rKyaTxPlbxo4nk4TUpg/markdown>

## Selected public attribution and original notices/references

```json
{
  "author": "Fin",
  "client": null,
  "notices_and_references": []
}
```