`poetry add`, but for PEP 621?

Agreed that checking for incompatibilities is valuable, but IMO there’s value even without that – one separate advantage to something like poetry add is minimizing context switches (I don’t have to open a separate editor buffer, jump to the right TOML table, etc.).

IIRC that’s what cargo add is limited to: pretty much all it does is modify the TOML, and subsequent commands are expected to actually perform the resolution (and fail, if appropriate.)

No, it also performs resolution and modifies the lock file.


My error! In that case this would indeed by unusually limited relative to other tools in the space without dependency resolution.

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There is demand: