fix nonetype error during print for tasks without class labels #1148
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Reference Issue
Fixes #1100 and #1058
What does this PR implement/fix? Explain your changes.
Previously, if
class_labelsattribute of task isNonewhen__repr__was called, aNoneTypeerror was thrown. Now "# of Classes" is not printed if there are noclass_labels.How should this PR be tested?
Any other comments?
I followed the implementation suggestion from #1100 where "# of Classes" is ignored. Let me know if this is no longer the best solution to this issue.