--drop-blanks in filter_features failes if every single row in the feature file has a blank

EducationalTestingService / skll

SciKit-Learn Laboratory (SKLL) makes it easy to run machine learning experiments.

http://skll.readthedocs.org

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Closed desilinguist closed 2 years ago

desilinguist commented 3 years ago

It's because pandas returns an empty data frame and then the DictVectorizer chokes.