improved error message pt.apply.query - from #433 #434
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Suggestion to improve researcher experience, as experienced by @bakingeol.
pt.apply.queryis a wrapper around Pandas apply. If the applied function does not return a string, Pandas error message can be confusing: "ValueError: Columns must be same length as key"This PR provides a TypeError on top that provides a more useful error message:
TypeError("Could not coerce return from pt.apply.query function into a list of strings. Check your function returns a string.")