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https://github.com/s-weigand/flake8-nb

Flake8 checking for jupyter notebooks
https://github.com/s-weigand/flake8-nb

cli code-quality-analyzer flake8 flake8-nb jupyter-notebooks notebook quality-assurance testing-tools

Last synced: about 2 months ago
JSON representation

Flake8 checking for jupyter notebooks

Host: GitHub
URL: https://github.com/s-weigand/flake8-nb
Owner: s-weigand
License: apache-2.0
Created: 2019-09-28T16:58:21.000Z (almost 5 years ago)
Default Branch: main
Last Pushed: 2024-04-08T07:17:11.000Z (3 months ago)
Last Synced: 2024-04-14T03:07:33.443Z (3 months ago)
Topics: cli, code-quality-analyzer, flake8, flake8-nb, jupyter-notebooks, notebook, quality-assurance, testing-tools
Language: Python
Homepage:
Size: 654 KB
Stars: 27
Watchers: 3
Forks: 7
Open Issues: 8
Metadata Files:
- Readme: README.md
- Changelog: changelog.md
- Contributing: CONTRIBUTING.rst
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Authors: AUTHORS.rst

Lists

awesome-flake8-extensions - flake8-nb - Runs flake8 on `*.ipynb` (jupyter notebook) files. (Integrations)

README

        # flake8-nb

[![PyPi Version](https://img.shields.io/pypi/v/flake8_nb.svg)](https://pypi.org/project/flake8-nb/)

[![Conda Version](https://img.shields.io/conda/vn/conda-forge/flake8-nb.svg)](https://anaconda.org/conda-forge/flake8-nb)

[![Supported Python Versions](https://img.shields.io/pypi/pyversions/flake8_nb.svg)](https://pypi.org/project/flake8-nb/)

[![Pre-commit](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white)](https://github.com/pre-commit/pre-commit)

[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)

[![Actions Status](https://github.com/s-weigand/flake8-nb/workflows/Tests/badge.svg)](https://github.com/s-weigand/flake8-nb/actions)

[![Documentation Status](https://readthedocs.org/projects/flake8-nb/badge/?version=latest)](https://flake8-nb.readthedocs.io/en/latest/?badge=latest)

[![Testing Coverage](https://codecov.io/gh/s-weigand/flake8-nb/branch/main/graph/badge.svg)](https://codecov.io/gh/s-weigand/flake8-nb)

[![Documentation Coverage](https://flake8-nb.readthedocs.io/en/latest/_static/interrogate_badge.svg)](https://github.com/s-weigand/flake8-nb)

[![Codacy Badge](https://app.codacy.com/project/badge/Grade/d02b436a637243a1b626b74d018c3bbe)](https://www.codacy.com/gh/s-weigand/flake8-nb/dashboard?utm_source=github.com&utm_medium=referral&utm_content=s-weigand/flake8-nb&utm_campaign=Badge_Grade)

[![All Contributors](https://img.shields.io/github/all-contributors/s-weigand/flake8-nb)](#contributors)

[![Code style Python: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)

[![Binder](https://static.mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/s-weigand/flake8-nb.git/main?urlpath=lab%2Ftree%2Ftests%2Fdata%2Fnotebooks)

[`flake8`](https://github.com/pycqa/flake8) checking for jupyter notebooks.

This tool is mainly aimed towards writing tutorials/lecture material, where one might also want

to show off bad practices and/or errors, while still keeping the rest of the code clean and

without adding the complexity of tooling to the readers

(see [docs on cell tags](https://flake8-nb.readthedocs.io/en/latest/usage.html#cell-tags)).

Basically this is a hack on the `flake8`'s `Application` class,

which adds parsing and a cell based formatter for `*.ipynb` files.

This is **NOT A PLUGIN** but a stand alone CLI tool/[pre-commit](https://pre-commit.com/) hook to be used instead of the `flake8` command/hook.

## Features

- flake8 CLI tests for jupyter notebooks

- Full base functionality of `flake8` and its plugins

- Input cell based error formatting (Execution count/code cell count/total cellcount)

- Report fine tuning with cell-tags (`flake8-noqa-tags` see [usage](https://flake8-nb.readthedocs.io/en/latest/usage.html#cell-tags))

- [pre-commit](https://pre-commit.com/) hook

## Examples

## Default reporting

If you had a notebook with name `example_notebook.ipynb`, where the code cell

which was executed as 34th cell (`In[34]`) had the following code:

```python

bad_formatted_dict = {"missing":"space"}

```

running `flake8_nb` would result in the following output.

### Execution count

```bash

$ flake8_nb example_notebook.ipynb

example_notebook.ipynb#In[34]:1:31: E231 missing whitespace after ':'

```

## Custom reporting

If you prefer the reports to show the cell number rather then the execution count you

can use the `--notebook-cell-format` option, given that the cell is the 5th `code` cell

and 10th total cell (taking `raw` and `markdown` cells into account),

you will get the following output.

### Code cell count

```bash

$ flake8_nb --notebook-cell-format '{nb_path}:code_cell#{code_cell_count}' example_notebook.ipynb

example_notebook.ipynb:code_cell#5:1:31: E231 missing whitespace after ':'

```

### Total cell count

```bash

$ flake8_nb --notebook-cell-format '{nb_path}:cell#{total_cell_count}' example_notebook.ipynb

example_notebook.ipynb:cell#10:1:31: E231 missing whitespace after ':'

```

## Similar projects

- [nbQA](https://github.com/nbQA-dev/nbQA):

  Run isort, pyupgrade, mypy, pylint, flake8, mdformat, black, blacken-docs, and more on Jupyter Notebooks

## Contributors ✨

Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):

  

    

      
_{Sebastian Weigand}
💻 🤔 🚧 📆 🚇 ⚠️ 📖

      
_{Jt Miclat}
🐛

      
_{Philipp Eisenhauer}
🐛

      
_{Shoma Okamoto}
⚠️

      
_{Marco Gorelli}
🔧 📖

      
_{Tony Hirst}
🤔

      
_Dobatymo
🐛

    

    

      
_{Alp Arıbal}
🐛

      
_1kastner
🐛

      
_{Dominique Sydow}
🐛

      
_{Liam Keegan}
🐛 💻

    

  

This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!