Update odsw.py

Add 'datetime' support to pyexcel_ods3.odsw.ODSSheetWriter.write_row(array)

Author: vinraspa

pyexcel_ods3/odsw.py

@@ -44,6 +44,10 @@ def write_row(self, array):
                 seconds = cell.seconds % 60
                 cell = "PT%02dH%02dM%02dS" % (hours, minutes, seconds)
                 value_type = "time"
+            if value_type == 'datetime':
+                cell = "%04d-%02d-%02dT%02d:%02d:%02d" % (cell.year, cell.month, cell.day,
+                                                          cell.hour, cell.minute, cell.second)
+                value_type = "date"
             elif value_type == "float":
                 if cell > MAX_INTEGER:
                     raise IntegerAccuracyLossError("%s is too big" % cell)