Quick fix to make to_ogr_feature method of SingleData PY3-compatible.

Quick fix to make construct_ogr_feature_definition method of MultiData PY3-compatible.

git-svn-id: https://svn.seismo.oma.be/svn/seismo/mapping/layeredbasemap/trunk@7163 40b490c5-b4d9-47cb-8714-9bef99b524d5

data_types/base.py

@@ -218,12 +218,15 @@ class SingleData(BasemapData):
 				#elif isinstance(field_value, np.floating):
 				#	field_value = float(field_value)
 				elif isinstance(field_value, basestring):
-					if not isinstance(field_value, bytes):
+					if PY2 and not isinstance(field_value, bytes):
 						field_value = field_value.encode(encoding,
 										errors='xmlcharrefreplace')
 				elif isinstance(field_value, (np.datetime64, datetime.datetime,
 												datetime.date, datetime.time)):
+					if PY2:
 						field_value = bytes(field_value)
+					else:
+						field_value = str(field_value)
 				elif isinstance(field_value, (list, np.ndarray)):
 					field_value = ','.join(map(str, field_value))
 				else:
@@ -468,6 +471,7 @@ class MultiData(BasemapData):
 			json = self.to_geojson(as_multi=True)
 			attributes = json["properties"]
 			for field_name, field_values in attributes.items():
+				if PY2:
 					field_name = field_name.encode(encoding, errors='xmlcharrefreplace')
 				field_val = field_values[0]
 				if isinstance(field_val, bool):