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https://github.com/xflr6/graphviz

Simple Python interface for Graphviz
https://github.com/xflr6/graphviz

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Simple Python interface for Graphviz

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README 

        
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 `_, `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 `_,

`archived versions `_,

`installation procedure for Windows `_).



Make sure that the directory containing the ``dot`` executable is on your

systems' ``PATH``

(sometimes done by the installer;

setting ``PATH``

on `Linux `_,

`Mac `_,

and `Windows `_).



Anaconda_: see the conda-forge_ package

`conda-forge/python-graphviz `_

(`feedstock `_),

which should automatically ``conda install``

`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

    



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 `_)

- 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)