---
name: Bug report
-about: Create a report to help us improve
+about: Create a report to help us improve Black's quality
title: ""
-labels: bug
+labels: "T: bug"
assignees: ""
---
-**Describe the bug** A clear and concise description of what the bug is.
+<!--
+Please make sure that the bug is not already fixed either in newer versions or the
+current development version. To confirm this, you have three options:
-**To Reproduce** Steps to reproduce the behavior:
+1. Update Black's version if a newer release exists: `pip install -U black`
+2. Use the online formatter at <https://black.vercel.app/?version=main>, which will use
+ the latest main branch.
+3. Or run _Black_ on your machine:
+ - create a new virtualenv (make sure it's the same Python version);
+ - clone this repository;
+ - run `pip install -e .[d]`;
+ - run `pip install -r test_requirements.txt`
+ - make sure it's sane by running `python -m pytest`; and
+ - run `black` like you did last time.
+-->
-1. Take this file '...'
-2. Run _Black_ on it with these arguments '....'
-3. See error
+**Describe the bug**
-**Expected behavior** A clear and concise description of what you expected to happen.
+<!-- A clear and concise description of what the bug is. -->
-**Environment (please complete the following information):**
+**To Reproduce**
-- Version: [e.g. master]
-- OS and Python version: [e.g. Linux/Python 3.7.4rc1]
+<!--
+Minimal steps to reproduce the behavior with source code and Black's configuration.
+-->
-**Does this bug also happen on master?** To answer this, you have two options:
+For example, take this code:
-1. Use the online formatter at https://black.now.sh/?version=master, which will use the
- latest master branch.
-2. Or run _Black_ on your machine:
- - create a new virtualenv (make sure it's the same Python version);
- - clone this repository;
- - run `pip install -e .[d,python2]`;
- - run `pip install -r test_requirements.txt`
- - make sure it's sane by running `python -m unittest`; and
- - run `black` like you did last time.
+```python
+this = "code"
+```
+
+And run it with these arguments:
+
+```sh
+$ black file.py --target-version py39
+```
+
+The resulting error is:
+
+> cannot format file.py: INTERNAL ERROR: ...
+
+**Expected behavior**
+
+<!-- A clear and concise description of what you expected to happen. -->
+
+**Environment**
+
+<!-- Please complete the following information: -->
+
+- Black's version: <!-- e.g. [main] -->
+- OS and Python version: <!-- e.g. [Linux/Python 3.7.4rc1] -->
+
+**Additional context**
-**Additional context** Add any other context about the problem here.
+<!-- Add any other context about the problem here. -->
projects / etc / vim.git / blobdiff