Check links (URLs) in notebook about nbval HOT 7 CLOSED

This could also be an entirely separate py.test plugin - a general link checker which knows how to handle ipynb files among others.

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A plugin checking links in markdown files would have potentially very wide use.

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Following the example of sphinx's make linkcheck might provide insight. Checking the links in markdown shouldn't be too difficult.

@takluyver do you think this would be better as a separate package, or part of nbval?

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I'd be inclined to do it as a separate package.

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OK. I've got it working in nbval here, but a separate package makes sense, too.

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I just pushed what I was doing as pytest-check-links, so that you should now be able to do:

pip install pytest-check-links
pytest --check-links /path/to/notebook.ipynb

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Closing here - please file further issues relating to this on the repo Min linked above.

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