Bump chardet from 3.0.4 to 5.0.0

[dependabot]

Bumps chardet from 3.0.4 to 5.0.0.

Release notes

Sourced from chardet's releases.

chardet 5.0.0

⚠️ This release is the first release of chardet that no longer supports Python < 3.6 ⚠️

In addition to that change, it features the following user-facing changes:

• Added a prober for Johab Korean (#207, @​grizlupo)
• Added a prober for UTF-16/32 BE/LE (#109, #206, @​jpz)
• Added test data for Croatian, Czech, Hungarian, Polish, Slovak, Slovene, Greek, and Turkish, which should help prevent future errors with those languages
• Improved XML tag filtering, which should improve accuracy for XML files (#208)
• Tweaked SingleByteCharSetProber confidence to match latest uchardet (#209)
• Made detect_all return child prober confidences (#210)
• Updated examples in docs (#223, @​domdfcoding)
• Documentation fixes (#212, #224, #225, #226, #220, #221, #244 from too many to mention)
• Minor performance improvements (#252, @​deedy5)
• Add support for Python 3.10 when testing (#232, @​jdufresne)
• Lots of little development cycle improvements, mostly thanks to @​jdufresne

chardet 4.0.0

⚠️ This will be the last release of chardet to support Python 2.7. chardet 5.0 will only support 3.6+ ⚠️

Major Changes

This release is multiple years in the making, and provides some quality of life improvements to chardet. The primary user-facing changes are:

1. Single-byte charset probers now use nested dictionaries under the hood, so they are usually a little faster than before. (See #121 for details)
2. The CharsetGroupProber class now properly short-circuits when one of the probers in the group is considered a definite match. This lead to a substantial speedup.
3. There is now a chardet.detect_all function that returns a list of possible encodings for the input with associated confidences.
4. We have dropped support for Python 2.6, 3.4, and 3.5 as they are all past end-of-life.

The changes in this release have also laid the groundwork for retraining the models to make them more accurate, and to support some more encodings/languages (see #99 for progress). This is our main focus for chardet 5.0 (beyond dropping Python 2 support).

Benchmarks

Running on a MacBook Pro (15-inch, 2018) with 2.2GHz 6-core i7 processor and 32GB RAM

old version (chardet 3.0.4)

Benchmarking chardet 3.0.4 on CPython 3.7.5 (default, Sep  8 2020, 12:19:42)
[Clang 11.0.3 (clang-1103.0.32.62)]
--------------------------------------------------------------------------------
Calls per second for each encoding:
ascii: 25559.439366240098
big5: 7.187002209518091
cp932: 4.71090956645177
cp949: 2.937256786994428
euc-jp: 4.870580412090848
euc-kr: 6.6910755971933416
euc-tw: 87.71098043480079
</tr></table> 

... (truncated)

Commits

• ff5dcb2 Merge pull request #254 from chardet/master
• 3222295 Linter fixes (#253)
• 85c96d3 Bump version to 5.0.0
• 57abbca Rebased and cleaned up version of UTF-16/32 BE/LE PR (#206)
• eca9558 Fix missing black formatting
• f1f9d42 slight increase in performance (#252)
• f9ef56c Use Python-3 super() syntax in Latin1Prober (#240)
• c5e5d5a Simple maintenance improvements (#244)
• 49b8341 Configure setuptools using the declarative syntax in setup.cfg (#239)
• 5c73bfc Run all pre-commit hooks on pull requests (#236)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #336.