Fix Imports

[michaelweinold]

Imports seem to be broken. environment.yml

name: xeus-python-kernel
channels:
  - conda-forge
  - nodefaults
dependencies:
  - matplotlib:
      channels:
        - https://repo.mamba.pm/emscripten-forge
  - numpy:
      channels:
        - https://repo.mamba.pm/emscripten-forge
  - pandas:
      channels:
        - https://repo.mamba.pm/emscripten-forge
  - tqdm:
      channels:
        - conda-forge

gives:

[michaelweinold]

Not sure it makes sense to specify anything any channels beyond the QuantStack Mamba servers in the first place. Also, while the syntax

  - numpy:
      channels:
        - https://repo.mamba.pm/emscripten-forge

does not throw an error during build, it does not seem to be canonical (or mentioned in the documentation of Conda). For now, best to use a recipe like used in the xeus-python-kernel template:

name: xeus-python-kernel
channels:
  - https://repo.mamba.pm/emscripten-forge
  - https://repo.mamba.pm/conda-forge
dependencies:
  - numpy
  - matplotlib
  - ipycanvas