Added compare method to PyEvent class and updated during method
Added compare method to PyEvent class and updated during method

spatial-ucsb/ConceptsOfSpatialInformation,liangcun/ConceptsOfSpatialInformation,spatial-ucsb/ConceptsOfSpatialInformation,liangcun/ConceptsOfSpatialInformation,spatial-ucsb/ConceptsOfSpatialInformation,liangcun/ConceptsOfSpatialInformation