Update graphviz requirement from <0.19,>=0.14 to >=0.14,<0.20

[dependabot]

Updates the requirements on graphviz to permit the latest version.

Changelog

Sourced from graphviz's changelog.

Version 0.19

Add PendingDeprecationWarning to calls using positional arguments that will be deprecated in a later version. The future API will allow from one to three positional arguments depending on the method or function. Keyword-only arguments where not around when this library was created. This signals dependents and in general users to start updating or pinning to the wanted version (or range). Crucially, this helps new users with a safer API that allows to avoid some common mistakes. Warnings reported in tests.

Add keyword-only outfile argument to .render() and stand-alone graphviz.render(). Allows to override the rendered output file name: .render(filename='spam.gv', outfile='spam.pdf') Allows to derive the format and the filename from the rendered outfile name: .render(outfile='spam.svg') Tries to infer default format from the outfile suffix. You can override by setting format explicitly. Warns with a graphviz.FormatSuffixMismatchWarning if there is a mismatch between given format and the inferred format from outfile suffix. Warns with a graphviz.UnknownSuffixWarning if format is given and outfile uses a suffix that cannot be mapped to a supported format.

Add graphviz.set_jupyter_format() to set the output format used by the Jupyter visualization of graphviz.Graph, graphviz.Digraph, and graphviz.Source (supported formats: 'svg', 'png', 'jpeg'). Replace _repr_svg_() internally with _repr_mimebundle_(include, exclude) returning a mimebundle {'image/svg+xml', '<?xml version=...'} by default. Adds support for IPython.display.display_png(). Adds support for IPython.display.display_jpeg(). PR [#150](https://github.com/xflr6/graphviz/issues/150) <https://github.com/xflr6/graphviz/pull/150>_ Christoph Boeddeker.

Add keyword-only raise_if_result_exists argument to .render() and stand-alone graphviz.render(). Raises graphviz.FileExistsError if the rendered file already exists.

Add support to for .render() and stand-alone .render() to overwrite the input source file with the rendered output when using the outfile keyword-only argument. This probably only makes sense for text-based Graphviz formats such as dot or plain. You need to specify overwrite_filepath=True to enable this.

... (truncated)

Commits

• e3d9361 release 0.19
• 702b0c2 fix PyPI rendering error (?)
• 01a3f00 fix markup
• e2185cd reorder steps
• 27a3a2a fix typo
• abced02 move warning on empty file to expected
• 99b4e62 add pytest.deprecated_call to expected deprecation warnings in tests
• 13ab1d5 fix internal deprecation warnings
• 683c9c3 flake8
• 61ec0d8 polish update-help.py
• Additional commits viewable in compare view

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[codecov-commenter]

Codecov Report

Merging #38 (45ba9a7) into master (e31e8c4) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #38   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           96        96           
  Branches        14        14           
=========================================
  Hits            96        96           

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[kinow]

@dependabot rebase