Remove unneeded cutout for webagg in show(). #23099
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_Backend.show() is used to generate a backend_module.show() method (by wrapping _Backend.mainloop() with some boilerplate), which is then what pyplot.show() calls. Currently, it contains a cutout for webagg (wrt. `block` support), but that's not really needed: the webagg backend defines a show() function *directly*, without going through the mainloop helper (this was the case even before the introduction of the _Backend helper in 5141f80), and thus the `if get_backend() == "WebAgg"` check is never reached when using webagg (try adding a print there and running `MPLBACKEND=webagg python -c 'from pylab import *; plot(); show()'`). So we can just remove the cutout.
timhoffm
approved these changes
May 22, 2022
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_Backend.show() is used to generate a backend_module.show() method (by
wrapping _Backend.mainloop() with some boilerplate), which is then what
pyplot.show() calls. Currently, it contains a cutout for webagg (wrt.
blocksupport), but that's not really needed: the webagg backenddefines a show() function directly, without going through the mainloop
helper (this was the case even before the introduction of the _Backend
helper in 5141f80), and thus the
if get_backend() == "WebAgg"check isnever reached when using webagg (try adding a print there and running
MPLBACKEND=webagg python -c 'from pylab import *; plot(); show()').So we can just remove the cutout.
PR Summary
PR Checklist
Tests and Styling
pytestpasses).flake8-docstringsand runflake8 --docstring-convention=all).Documentation
doc/users/next_whats_new/(follow instructions in README.rst there).doc/api/next_api_changes/(follow instructions in README.rst there).