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Include length in ArtistList repr. #19889

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merged 1 commit into from
Apr 7, 2021
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@anntzer anntzer commented Apr 7, 2021

Previously, printing e.g. ax.lines would show a bunch of <Line2D object at 0x...>. Now it's all hidden between an <ArtistList>, which is useful in itself (#18216); but displaying the length of the list (which is the main thing that could be seen from the [<Line2D object at 0x...> representation) is useful at least for debugging purposes.

PR Summary

PR Checklist

  • Has pytest style unit tests (and pytest passes).
  • Is Flake 8 compliant (run flake8 on changed files to check).
  • New features are documented, with examples if plot related.
  • Documentation is sphinx and numpydoc compliant (the docs should build without error).
  • Conforms to Matplotlib style conventions (install flake8-docstrings and run flake8 --docstring-convention=all).
  • New features have an entry in doc/users/next_whats_new/ (follow instructions in README.rst there).
  • API changes documented in doc/api/next_api_changes/ (follow instructions in README.rst there).

Previously, printing e.g. `ax.lines` would show a bunch of `<Line2D
object at 0x...>`.  Now it's all hidden between an `<ArtistList>`,
which is useful in itself; but displaying the length of the list
(which is the main thing that could be seen from the `[<Line2D object at
0x...>` representation) is useful at least for debugging purposes.
@anntzer anntzer added this to the v3.5.0 milestone Apr 7, 2021
@timhoffm timhoffm merged commit 17a7bb1 into matplotlib:master Apr 7, 2021
@anntzer anntzer deleted the allen branch April 7, 2021 15:30
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