Python class not being generated

[rohitranjan017]

Even after npm build run, the python class is not being generated in the example_component directory. I can see the example_component.js file but no ExampleComponent.py . How to import the React component and run the python dash application?

[rohitranjan017]

@T4rk1n , I realized the python class is not being generated because metadata.json file is empty. Could you please suggest why is that and what could be a workaround for it?

[b-long]

I wonder if this is still a valid issue. I haven't seen a new release of Dash, but I did notice that this is merged plotly/dash#1956 .

[Jordan-Hall]

I wonder if this is related pip install error im getting

(venv) C:\dev\clients\madetech\gov_uk_dash_components>pip install -r requirements.txt     
Collecting dash[dev]
  Cloning https://github.com/plotly/dash.git (to revision typescript-component-generator) to c:\users\libert~1\appdata\local\temp\pip-install-7c_agz67\dash_11e4957ed35f4091bdc101aef9930efe
  Running command git clone --filter=blob:none --quiet https://github.com/plotly/dash.git 'C:\Users\LIBERT~1\AppData\Local\Temp\pip-install-7c_agz67\dash_11e4957ed35f4091bdc101aef9930efe'
  hint: core.useBuiltinFSMonitor will be deprecated soon; use core.fsmonitor instead
  hint: Disable this message with "git config advice.useCoreFSMonitorConfig false"
  WARNING: Did not find branch or tag 'typescript-component-generator', assuming revision or ref.
  Running command git checkout -q typescript-component-generator
  hint: core.useBuiltinFSMonitor will be deprecated soon; use core.fsmonitor instead
  hint: Disable this message with "git config advice.useCoreFSMonitorConfig false"
  error: pathspec 'typescript-component-generator' did not match any file(s) known to git
  error: subprocess-exited-with-error
  
  × git checkout -q typescript-component-generator did not run successfully.
  │ exit code: 1
  ╰─> See above for output.

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× git checkout -q typescript-component-generator did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

[Jordan-Hall]

@b-long @rohitranjan017

I've just changed the requirements.txt file to the following:

git+https://github.com/plotly/dash@dev#egg=dash[dev]
wheel
build

This solved all issues for me and appears to build ok