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Simple Python interface for Graphviz

Graphviz

|PyPI version| |License| |Supported Python| |Wheel| |Downloads|

|Build| |Codecov| |Readthedocs-stable| |Readthedocs-latest|

|Binder-stable|

This package facilitates the creation and rendering of graph descriptions in the DOT_ language of the Graphviz_ graph drawing software (upstream repo_) from Python.

Create a graph object, assemble the graph by adding nodes and edges, and retrieve its DOT source code string. Save the source code to a file and render it with the Graphviz installation of your system.

Use the view option/method to directly inspect the resulting (PDF, PNG, SVG, etc.) file with its default application. Graphs can also be rendered and displayed within Jupyter notebooks_ (formerly known as IPython notebooks, example <notebook_>, nbviewer <notebook-nbviewer_>) as well as the Jupyter QtConsole.

Links

  • GitHub: https://github.com/xflr6/graphviz
  • PyPI: https://pypi.org/project/graphviz/
  • Documentation: https://graphviz.readthedocs.io
  • Changelog: https://graphviz.readthedocs.io/en/latest/changelog.html
  • Issue Tracker: https://github.com/xflr6/graphviz/issues
  • Download: https://pypi.org/project/graphviz/#files
  • Development documentation: https://graphviz.readthedocs.io/en/latest/development.html
  • Release process: https://graphviz.readthedocs.io/en/latest/release_process.html

Installation

This package runs under Python 3.8+, use pip_ to install:

.. code:: bash

$ pip install graphviz

To render the generated DOT source code, you also need to install Graphviz_ (download page <upstream-download_>, archived versions <upstream-archived_>, installation procedure for Windows <upstream-windows_>_).

Make sure that the directory containing the dot executable is on your systems' PATH (sometimes done by the installer; setting PATH on Linux <set-path-linux_>, Mac <set-path-darwin_>, and Windows <set-path-windows_>_).

Anaconda_: see the conda-forge_ package conda-forge/python-graphviz <conda-forge-python-graphviz_>_ (feedstock <conda-forge-python-graphviz-feedstock_>), which should automatically conda install conda-forge/graphviz <conda-forge-graphviz_> (feedstock <conda-forge-graphviz-feedstock_>_) as dependency.

Quickstart

Create a graph object:

.. code:: python

>>> import graphviz  # doctest: +NO_EXE
>>> dot = graphviz.Digraph(comment='The Round Table')
>>> dot  #doctest: +ELLIPSIS
<graphviz.graphs.Digraph object at 0x...>

Add nodes and edges:

.. code:: python

>>> dot.node('A', 'King Arthur')  # doctest: +NO_EXE
>>> dot.node('B', 'Sir Bedevere the Wise')
>>> dot.node('L', 'Sir Lancelot the Brave')

>>> dot.edges(['AB', 'AL'])
>>> dot.edge('B', 'L', constraint='false')

Check the generated source code:

.. code:: python

>>> print(dot.source)  # doctest: +NORMALIZE_WHITESPACE +NO_EXE
// The Round Table
digraph {
    A [label="King Arthur"]
    B [label="Sir Bedevere the Wise"]
    L [label="Sir Lancelot the Brave"]
    A -> B
    A -> L
    B -> L [constraint=false]
}

Save and render the source code (skip/ignore any doctest_mark_exe() lines):

.. code:: python

>>> doctest_mark_exe()  # skip this line

>>> dot.render('doctest-output/round-table.gv').replace('\\', '/')
'doctest-output/round-table.gv.pdf'

Save and render and view the result:

.. code:: python

>>> doctest_mark_exe()  # skip this line

>>> dot.render('doctest-output/round-table.gv', view=True)  # doctest: +SKIP
'doctest-output/round-table.gv.pdf'

.. image:: https://raw.github.com/xflr6/graphviz/master/docs/_static/round-table.svg :align: center :alt: round-table.svg

Caveat: Backslash-escapes and strings of the form <...> have a special meaning in the DOT language. If you need to render arbitrary strings (e.g. from user input), check the details in the user guide_.

See also

  • pygraphviz_ |--| full-blown interface wrapping the Graphviz C library with SWIG
  • graphviz-python_ |--| official Python bindings (documentation <graphviz-python-docs_>_)
  • pydot_ |--| stable pure-Python approach, requires pyparsing

License

This package is distributed under the MIT license_.

.. _Graphviz: https://www.graphviz.org .. _DOT: https://www.graphviz.org/doc/info/lang.html .. _upstream repo: https://gitlab.com/graphviz/graphviz/ .. _upstream-download: https://www.graphviz.org/download/ .. _upstream-archived: https://www2.graphviz.org/Archive/stable/ .. _upstream-windows: https://forum.graphviz.org/t/new-simplified-installation-procedure-on-windows/224

.. _set-path-windows: https://www.computerhope.com/issues/ch000549.htm .. _set-path-linux: https://stackoverflow.com/questions/14637979/how-to-permanently-set-path-on-linux-unix .. _set-path-darwin: https://stackoverflow.com/questions/22465332/setting-path-environment-variable-in-osx-permanently

.. _pip: https://pip.pypa.io

.. _Jupyter notebooks: https://jupyter.org .. _IPython notebooks: https://ipython.org/notebook.html .. _Jupyter QtConsole: https://qtconsole.readthedocs.io

.. _notebook: https://github.com/xflr6/graphviz/blob/master/examples/graphviz-notebook.ipynb .. _notebook-nbviewer: https://nbviewer.org/github/xflr6/graphviz/blob/master/examples/graphviz-notebook.ipynb

.. _Anaconda: https://docs.anaconda.com/anaconda/install/ .. _conda-forge: https://conda-forge.org .. _conda-forge-python-graphviz: https://anaconda.org/conda-forge/python-graphviz .. _conda-forge-python-graphviz-feedstock: https://github.com/conda-forge/python-graphviz-feedstock .. _conda-forge-graphviz: https://anaconda.org/conda-forge/graphviz .. _conda-forge-graphviz-feedstock: https://github.com/conda-forge/graphviz-feedstock

.. _user guide: https://graphviz.readthedocs.io/en/stable/manual.html

.. _pygraphviz: https://pypi.org/project/pygraphviz/ .. _graphviz-python: https://pypi.org/project/graphviz-python/ .. _graphviz-python-docs: https://www.graphviz.org/pdf/gv.3python.pdf .. _pydot: https://pypi.org/project/pydot/

.. _MIT license: https://opensource.org/licenses/MIT

.. |--| unicode:: U+2013

.. |PyPI version| image:: https://img.shields.io/pypi/v/graphviz.svg :target: https://pypi.org/project/graphviz/ :alt: Latest PyPI Version .. |License| image:: https://img.shields.io/pypi/l/graphviz.svg :target: https://github.com/xflr6/graphviz/blob/master/LICENSE.txt :alt: License .. |Supported Python| image:: https://img.shields.io/pypi/pyversions/graphviz.svg :target: https://pypi.org/project/graphviz/ :alt: Supported Python Versions .. |Wheel| image:: https://img.shields.io/pypi/wheel/graphviz.svg :target: https://pypi.org/project/graphviz/#files :alt: Wheel format .. |Downloads| image:: https://img.shields.io/pypi/dm/graphviz.svg :target: https://pypistats.org/packages/graphviz :alt: Monthly downloads

.. |Build| image:: https://github.com/xflr6/graphviz/actions/workflows/build.yaml/badge.svg?branch=master :target: https://github.com/xflr6/graphviz/actions/workflows/build.yaml?query=branch%3Amaster :alt: Build .. |Codecov| image:: https://codecov.io/gh/xflr6/graphviz/branch/master/graph/badge.svg :target: https://codecov.io/gh/xflr6/graphviz :alt: Codecov .. |Readthedocs-stable| image:: https://readthedocs.org/projects/graphviz/badge/?version=stable :target: https://graphviz.readthedocs.io/en/stable/ :alt: Readthedocs (stable) .. |Readthedocs-latest| image:: https://readthedocs.org/projects/graphviz/badge/?version=latest :target: https://graphviz.readthedocs.io/en/latest/ :alt: Readthedocs (latest)

.. |Binder-stable| image:: https://img.shields.io/badge/launch-binder%20(stable)-579ACA.svg?logo=data:image/png;base64,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 :target: https://mybinder.org/v2/gh/xflr6/graphviz/stable :alt: Binder (stable)

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Simple Python interface for Graphviz

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