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Is there a tutorial for implementing `./pants tailor` to your plugin? specifically because my target also takes in python files I'd like to overwrite the default `python_sources` and create my own target based on whether the file creates a specific object in the global space

But there are tons of examples in the repo

Look for uses of PutativeTarget - this is what plugins can return to tailor to suggest a target

And also note that you can use an alias mapping to get tailor to generate custom target types: <https://www.pantsbuild.org/docs/reference-tailor#section-alias-mapping>

Warning that it is not currently possible to turn off tailor for `python_sources`, but that would be a good and easy contribution to make if you're interested. We already have `[python].tailor_requirement_targets` for example. It'd makee sense to have `[python].tailor_source_targets`