ListFeatureClasses() got an unexpected keyword argument 'feature_type' in Python 2.65

I am trying to run some code that works fine in Python 2.7 +, but seems to throw an error in a 2.65 environment:

Error: ListFeatureClasses() got an unexpected keyword argument
‘feature_type’ ListFeatureClasses() got an unexpected keyword argument
‘feature_type’

The line of code is simple and works fine in 2.7+:

arcpy.ListFeatureClasses(wildCard,feature_type = 'Polygon')

It throws a the same error in another line of code but for workspace_type = 'FileGDB'

Any ideas how to resolve this?

I am using a super old version of ArcMap (10.0) with Python 2.65.

arcpy.ListFeatureClasses(wildCard,"Polygon")