---
name: Bug Report
about: Submit a bug report
labels: "bug"
---

<!--
If you're not sure whether what you're experiencing is a mypy bug, please see the "Question and Help" form instead.
Please consider:

- checking our common issues page: https://mypy.readthedocs.io/en/stable/common_issues.html
- searching our issue tracker: https://github.com/python/mypy/issues to see if it's already been reported
- asking on gitter chat: https://gitter.im/python/typing
-->

**Bug Report**

<!--
If you're reporting a problem with a specific library function, the typeshed tracker is better suited for this report: https://github.com/python/typeshed/issues

If the project you encountered the issue in is open source, please provide a link to the project.
-->

(A clear and concise description of what the bug is.)

**To Reproduce**

```python
# Ideally, a small sample program that demonstrates the problem.
# Or even better, a reproducible playground link https://mypy-play.net/ (use the "Gist" button)
```

**Expected Behavior**

<!--
How did you expect mypy to behave? It’s fine if you’re not sure your understanding is correct.
Write down what you thought would happen. If you expected no errors, delete this section.
-->

**Actual Behavior**

<!-- What went wrong? Paste mypy's output. -->

**Your Environment**

<!-- Include as many relevant details about the environment you experienced the bug in -->

- Mypy version used:
- Mypy command-line flags:
- Mypy configuration options from `mypy.ini` (and other config files):
- Python version used:

<!-- You can freely edit this text, please remove all the lines you believe are unnecessary. -->