[proposal] Make new argparse container CLI opt-in#338
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minrk wants to merge 1 commit intoipython:masterfrom
Closed
[proposal] Make new argparse container CLI opt-in#338minrk wants to merge 1 commit intoipython:masterfrom
minrk wants to merge 1 commit intoipython:masterfrom
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to avoid a dependency bump causing backward-incompatible changes to downstream project APIs.
This was referenced Oct 25, 2016
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Closing in favor of #340 |
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to avoid a dependency bump causing backward-incompatible changes to downstream project APIs.
This would dramatically slow adoption of the new options, but it would allow downstream packages to take the step on their own terms.
Anywhere with common subclasses, such as
jupyter-corewould immediately run into the same problem, though.cc @takluyver @Carreau @ankostis @ellisonbg @fperez @jhamrick
Another stab at backward-compatibility would be to try to detect users passing old-style args. We can't however, easily distinguish between users having passed old-style list args and actually asking for that string that looks a bit like a list via the new style.
My current inclination is to move to the new way, and detect old-style args, WARNING that the API changed, but not trying to keep the old arg working (which would break people's code trying to adopt the new API).