Make Python graphviz package dependency optional

mgedmin / objgraph

Visually explore Python object graphs

http://mg.pov.lt/objgraph/

MIT License

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Make Python graphviz package dependency optional #67

Closed mgorny closed 2 years ago

mgorny commented 2 years ago

Move the Python graphviz package dependency into ipython extra in order to make it optional. The code already assumes it optional, and the tests do not need it at all, so this avoids it being unnecessarily forced for everyone.

mgorny commented 2 years ago

Thanks!