use flake8-nb

Author: ocefpaf

.github/workflows/test_notebooks.yml

@@ -46,6 +46,4 @@ jobs:
     - name: Notebook coding standards tests
       shell: bash -l {0}
       run: |
-        for NB in $(find . -type f -name "*.ipynb")
-          do $MAMBA_ROOT_PREFIX/envs/TEST/bin/jupyter-nbconvert --stdout --to python "${NB}" | $MAMBA_ROOT_PREFIX/envs/TEST/bin/flake8 - --ignore=W391,E226,E402,,W504,I100,I201,I202 --max-line-length=120 --show-source --count
-        done
+        $MAMBA_ROOT_PREFIX/envs/TEST/bin/flake8-nb examples --ignore=W391,E226,E402,,W504,I100,I201,I202 --max-line-length=120 --show-source --count

requirements-dev.txt

@@ -7,6 +7,7 @@ flake8-builtins
 flake8-comprehensions
 flake8-import-order
 flake8-mutable
+flake8-nbw
 flake8-quotes
 geographiclib
 # geopandas