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Simplify binary data handling in ps backend. by anntzer · Pull Request #23294 · matplotlib/matplotlib · GitHub

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Simplify binary data handling in ps backend. - #23294

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timhoffm merged 1 commit into
matplotlib:mainfrom
anntzer:psb
Jun 19, 2022
Merged

timhoffm merged 1 commit into
matplotlib:mainfrom
anntzer:psb

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anntzer commented Jun 17, 2022

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  • bytes.hex() can now perform linewrapping itself, so use that in
    draw_image.
  • draw_gouraud_triangles can rely on PostScript's hexstring format
    (<...> instead of (...)) and thus on bytes.hex() too. This makes
    _quote_ps_string fully unused, thus tweak the deprecation of
    quote_ps_string.

PR Summary

PR Checklist

Tests and Styling

  • Has pytest style unit tests (and pytest passes).
  • Is Flake 8 compliant (install flake8-docstrings and run flake8 --docstring-convention=all).

Documentation

  • New features are documented, with examples if plot related.
  • 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).
  • Documentation is sphinx and numpydoc compliant (the docs should build without error).

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

The only potential "problem" is that the deprecation note says: "Vendor the code of the similarly named private functions if you rely on these functions." https://github.com/matplotlib/matplotlib/blob/main/doc/api/next_api_changes/deprecations/22797-OG.rst

But hopefully people will understand anyway (there are several functions deprecated, so probably not worthwhile special handling this one).

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Oh, if there is a suitable test to add that would be great! (Or are the lines actually tested despite the report?)

anntzer commented Jun 17, 2022

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It is quite possible that this is actually not tested; will add a test...

anntzer commented Jun 18, 2022

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Test added.

- bytes.hex() can now perform linewrapping itself, so use that in
  draw_image.
- draw_gouraud_triangles can rely on PostScript's hexstring format
  (`<...>` instead of `(...)`) and thus on bytes.hex() too.  This makes
  _quote_ps_string fully unused, thus tweak the deprecation of
  quote_ps_string.

Also add a test for PostScript Gouraud shading, which was previously not
covered at all.
timhoffm added this to the v3.6.0 milestone Jun 19, 2022
timhoffm merged commit a3443de into matplotlib:main Jun 19, 2022
anntzer deleted the psb branch June 19, 2022 16:46
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