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Simple Python interface for Graphviz

Project description

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This package facilitates the creation of graph descriptions in the DOT language of the Graphviz graph drawing software 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 compile it with the Graphviz installation of your system.

Installation

$ pip install graphviz

To compile the generated DOT source code, you also need to install Graphviz (download page).

Make sure that the dot executable is on your systems’ path.

Usage

Create a graph object:

>>> from graphviz import Digraph

>>> dot = Digraph(comment='The Round Table')

>>> dot  #doctest: +ELLIPSIS
<graphviz.dot.Digraph object at 0x...>

Add nodes and edges:

>>> dot.node('A', 'King Arthur')
>>> 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:

>>> print dot.source  # doctest: +NORMALIZE_WHITESPACE
// 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, optionally view the result:

>>> dot.render('round-table.gv', view=True)
'round-table.gv.pdf'
https://raw.github.com/xflr6/graphviz/master/docs/round-table.png

See also

License

This package is distributed under the MIT license.

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Filename, size & hash SHA256 hash help File type Python version Upload date
graphviz-0.2.1.zip (25.4 kB) Copy SHA256 hash SHA256 Source None Mar 3, 2014

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