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Jonga

Jonga is a Python package that generates a directed graph representing function calls within a block of Python code, intended for inclusion in Sphinx package documentation. There are a number of alternative packages with similar goals, including

but none of them is entirely suitable for generating function/method call vizualizations for inclusion within package documentation. In particular, none of these other packages correctly identifies method classes within a hierarchy of derived classes.

Requirements

The primary requirement is Python 3.3 or greater (this packages is not compatible with Python 2), imposed by the use of the __qualname__ function attribute and inspect.getclosurevars. The __qualname__ attribute could be replaced in earlier versions of Python by qualname, but there is no obvious replacement for inspect.getclosurevars, which was introduced in Python 3.3.

The other major requirement is pygraphviz. Under Ubuntu Linux 18.04, this requirement can be installed by the command

sudo apt-get install python3-pygraphviz

Optional

Package matplotlib is required to run the included Jupyter Notebook examples.

Packages pytest and pytest-runner are required to run the tests (python setup.py test or python3 setup.py test, depending on the operating system).

Packages sphinx, sphinx-bootstrap-theme, and numpydoc are required to build the documentation (python setup.py build_sphinx or python3 setup.py build_sphinx, depending on the operating system).

Usage

Scripts illustrating usage of the package can be found in the examples directory of the source distribution. These examples can be run from the root directory of the package by, for example

python3 examples/example1.py

To run these scripts prior to installing the package it will be necessary to first set the PYTHONPATH environment variable to include the root directory of the package. For example, in a bash shell

export PYTHONPATH=$PYTHONPATH:`pwd`

from the root directory of the package.

Jupyter Notebook versions of the example scripts are also included in the examples directory, and can be viewed online via nbviewer, or run interactively at binder.

Documentation

Documentation is available online at Read the Docs, or can be built from the root directory of the source distribution by the command

python3 setup.py build_sphinx

in which case the HTML documentation can be found in the build/sphinx/html directory (the top-level document is index.html).

Contact

Please submit bug reports, comments, etc. to brendt@ieee.org. Bugs and feature requests can also be reported via the GitHub Issues interface.

License

This package is made available under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License (see the included LICENSE file), or (at your option) any later version.