CLI should be usable with only mandatory dependencies

iiasa / message-ix-models

Tools for the MESSAGEix-GLOBIOM family of models

https://docs.messageix.org/models

Apache License 2.0

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CLI should be usable with only mandatory dependencies #185

Open khaeru opened 2 months ago

khaeru commented 2 months ago

@r-aneeque discovered that mix-models --help does not work with an installation of only message-ix-models (with no optional dependencies). There were ImportErrors due to:

pytest
jaydebeapi

To fix: adjust imports so that these are not required unless/until actually invoking the particular CLI commands that use them.