Can not run demo on Windows with micromamba

[Madnex]

Description

I am having issues running the demo on Windows.

Reproduce

Follow the steps described for the demo.

Expected behavior

Demo should run.

Context

• voila version 0.7.0
• Operating System and version: Windows 10
• Browser and version: Edge

Command Line Output

Linking emscripten-abi-3.1.45-h267e887_29
Linking pillow-10.3.0-hf51ec75_0
warning  libmamba Invalid package cache, file 'C:\Users\FQ19OO\AppData\Local\Temp\tmpcho52_pw\env\pkgs\pillow-10.3.0-hf51ec75_0\bin\python.bak' is missing
error    libmamba Cannot find a valid extracted directory cache for 'pillow-10.3.0-hf51ec75_0.tar.bz2'
critical libmamba Package cache error.

I did not manage to get it running with micromamba. It is always having issues finding the python instance somehow. Running an environment with micromambais working fine though.

[jtpio]

Thanks @Madnex for the report 👍

cc @DerThorsten @martinRenou if you have any hint on what could be the cause of the issue.

[DerThorsten]

Description

I am having issues running the demo on Windows.

Reproduce

Follow the steps described for the demo.

Expected behavior

Demo should run.

Context

• voila version 0.7.0
• Operating System and version: Windows 10
• Browser and version: Edge

Command Line Output
Linking emscripten-abi-3.1.45-h267e887_29
Linking pillow-10.3.0-hf51ec75_0
warning libmamba Invalid package cache, file 'C:\Users\FQ19OO\AppData\Local\Temp\tmpcho52_pw\env\pkgs\pillow-10.3.0-hf51ec75_0\bin\python.bak' is missing
error libmamba Cannot find a valid extracted directory cache for 'pillow-10.3.0-hf51ec75_0.tar.bz2'
critical libmamba Package cache error.
I did not manage to get it running with micromamba. It is always having issues finding the python instance somehow. Running an environment with micromambais working fine though.

not really sure why bin\python.bak is in the package in the first place.
I assume we could remove this file from the pillow build.
I created a PR to update the pillow recipe , maybe that's enough

[DerThorsten]

@Madnex I uploaded a new build of pillow (pillow-10.3.0-py311h1bb38f8_1.tar.bz2)

This does not contain this *.bak file and that might solve the issue you are seeing

[Madnex]

Thanks, the error disappeared but now I am getting this error instead :/

Error messages

Linking emscripten-abi-3.1.45-h267e887_29
Linking pillow-10.3.0-py311h1bb38f8_1
Linking pyjs-2.1.0-py311hd5f3483_7
[VoiciBuildApp] ERROR | [lite] [post_build] [jupyterlite-xeus] [ERR] Command '['C:\\Users\\FQ19OO\\micromamba\\condabin\\micromamba.BAT', 'create', '--yes', '--no-pyc', '--root-prefix', WindowsPath('C:/Users/FQ19OO/AppData/Local/Temp/tmpjv4edaa3/env'), '--name', 'voici', '--platform=emscripten-wasm32', '-c', 'https://repo.mamba.pm/emscripten-forge', '-c', 'conda-forge', 'xeus-python', 'pandas', 'bqplot', 'ipycanvas', 'ipywidgets', 'emscripten-abi=3.1.45']' returned non-zero exit status 3221225477.
Traceback (most recent call last):
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\doit_cmd.py", line 294, in run
  return command.parse_execute(args)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\cmd_base.py", line 150, in parse_execute
  return self.execute(params, args)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\cmd_base.py", line 570, in execute
  return self._execute(**exec_params)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\cmd_run.py", line 265, in _execute
  return runner.run_all(self.control.task_dispatcher())
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\runner.py", line 254, in run_all
  self.run_tasks(task_dispatcher)
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\runner.py", line 213, in run_tasks
  node = task_dispatcher.generator.send(node)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\control.py", line 629, in _dispatcher_generator
  next_step = node.step()
              ^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\control.py", line 336, in step
  return next(self.generator)
         ^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\control.py", line 345, in _func
  for value in decorated(*args, **kwargs):
               ^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\control.py", line 473, in _add_task
  new_tasks = generate_tasks(to_load, task_gen, ref.__doc__)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\loader.py", line 390, in generate_tasks
  for task_dict, x_doc in flat_generator(gen_result, gen_doc):
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\doit\loader.py", line 27, in flat_generator
  for item in gen:
              ^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_core\manager.py", line 138, in _delayed_gather
  yield from _gather()
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_core\manager.py", line 131, in _gather
  raise error
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_core\manager.py", line 123, in _gather
  for task in getattr(addon, attr)(self):
              ^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_xeus\add_on.py", line 124, in post_build
  self.create_prefix()
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_xeus\add_on.py", line 148, in create_prefix
  create_conda_env_from_env_file(root_prefix, yaml_content, env_file.parent)
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_xeus\create_conda_env.py", line 55, in create_conda_env_from_env_file
  create_conda_env_from_specs(
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_xeus\create_conda_env.py", line 71, in create_conda_env_from_specs
  _create_conda_env_from_specs_impl(
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\site-packages\jupyterlite_xeus\create_conda_env.py", line 107, in _create_conda_env_from_specs_impl
  subprocess_run(
File "C:\Users\FQ19OO\micromamba\envs\test_env\Lib\subprocess.py", line 571, in run
  raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['C:\\Users\\FQ19OO\\micromamba\\condabin\\micromamba.BAT', 'create', '--yes', '--no-pyc', '--root-prefix', WindowsPath('C:/Users/FQ19OO/AppData/Local/Temp/tmpjv4edaa3/env'), '--name', 'voici', '--platform=emscripten-wasm32', '-c', 'https://repo.mamba.pm/emscripten-forge', '-c', 'conda-forge', 'xeus-python', 'pandas', 'bqplot', 'ipycanvas', 'ipywidgets', 'emscripten-abi=3.1.45']' returned non-zero exit status 3221225477.