[pandas] Data Table crash (test needed) #1518
Description
Select visualize continuous values in Data Table. It crashes.
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AttributeError Traceback (most recent call last):
File "/Users/anze/dev/orange3/Orange/widgets/utils/itemmodels.py", line 1040, in data
return instance.get_class()
File "/Users/anze/miniconda3/envs/o3/lib/python3.5/site-packages/pandas/core/generic.py", line 2743, in __getattr__
return object.__getattribute__(self, name)
AttributeError: 'TableSeries' object has no attribute 'get_class'
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AttributeError Traceback (most recent call last):
File "/Users/anze/dev/orange3/Orange/widgets/gui.py", line 2779, in paint
if class_.variable.is_discrete and \
AttributeError: 'NoneType' object has no attribute 'variable'
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