404 on jupyter image

[smiecj]

Hi, I just run jupyter container docker run -it -p 8888:8888 jupyter/scipy-notebook:lab-3.6.3 , then install formatter:

pip install jupyterlab-code-formatter
pip install black
pip install yapf
pip install isort
pip install autopep8

But when click "format" button, it announce 404 problem:

curl param copy from chrome:

curl 'http://.../jupyterlab_code_formatter/format?1684310976887' \
  -H 'Accept: */*' \
...
  --data-raw '{"code":["print(123)"],"notebook":true,"formatter":"isort","options":{"multi_line_output":3,"include_trailing_comma":true,"force_grid_wrap":0,"use_parentheses":true,"ensure_newline_before_comments":true,"line_length":88}}' \
  --compressed \
  --insecure

Maybe my installation steps have some problem? Thanks in advance

[ryantam626]

Hi, thanks for the report.

So to recap, you are doing

docker run -it -p 8888:8888 jupyter/scipy-notebook:lab-3.6.3

then within jupyterlab itself you do

pip install jupyterlab-code-formatter
pip install black
pip install yapf
pip install isort
pip install autopep8

?

I know what's the issue here if that's the case. You haven't done the step outlined here, you either need to modify the entrypoint such that these pypi packages are installed before jupyterlab is started or build upon the docker image you are using.

[smiecj]

Thanks! After I add example formatter like this in config.py, it fixed.