Unable to generate graph output due to incorrect arg parsing in 2.10.0

[peter-kipping-seequent]

When running pipdeptree --graph-output png > ./test.png with the latest version (2.10.0)
We get the following error: AttributeError: 'Namespace' object has no attribute 'graph_output'

Full traceback:

Suspect something to do with

pipdeptree/src/pipdeptree/_cli.py

Line 129 in e861826

render_type.add_argument(

has caused the 'graph_output' field to not be set correctly as it appears its only getting assigned to the 'output_format' value. So not sure what the check at

pipdeptree/src/pipdeptree/_render/__init__.py

Line 24 in e861826

assert options.graph_output is not None # noqa: S101

is actually supposed to be checking anymore?

Current work around:
Currently pinning the version of pipdeptree back to 2.9.6 works fine for my use-case pip install pipdeptree==2.9.6. Doesn't look like 2.10.0 actually introduced any massive new functionality so hopefully this workaround will be fine for most people.

[peter-kipping-seequent]

For completeness, running with graphvis 0.20.1 in WSL running Ubuntu 22.04.2 with Python 3.11.

pip install --compile graphviz pipdeptree

[davidzhouwa]

Encountered the same, please release with a fix.

[gaborbernat]

This is an open source project, if your you are looking for a fix in a short amount of time, you better put in a pull request.

…

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