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Is there a way I can control the way pytest creates string representations from objects?

specifically I am using mongoengine where the objects of type Document are just lazily outputed to console as "<Document: Documment object>" and I'd like to create a more meaningful conversion to string (probably utilizing the Document.to_json() function )

can I get pytest to call a custom function whenever it needs to print out an object?

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  • does Document implement __str__ and/or __repr__? If not, or if you don't like how they are implemented you could patch them. Commented Apr 12, 2023 at 17:48
  • 1
    I was thinking same as Jon. You can probably do something like monkeypatch.setattr(Document, "__repr__", Document.to_json). Commented Apr 12, 2023 at 17:51
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