F fix datetime value

Summary

For #202 (closed) (https://gitlab.com/linkahead/linkahead-pylib/-/issues/128). Fixes _parse_value so that datetime.date and datetime.datetime values can be assigned. Note that the problem was always only on the client-side, cf. https://gitlab.com/linkahead/linkahead-pylib/-/issues/128#adding-vs-updating.

Focus

Simply allow datetime.date(time) values and treat them as they would have been treated in case of datatype=None.

Test Environment

New unit test should be sufficient. Feel free to run the extended example with a local linkahead, though.

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unittests/test_issues.py

@@ -73,6 +73,8 @@ def test_issue_128():
     https://gitlab.com/linkahead/linkahead-pylib/-/issues/128.
 
     """
+    # Test assignement correct assignment for both datatype=DATETIME
+    # and datatype=LIST<DATETIME>, just to be sure.
     prop = db.Property(name="TestDatetime", datatype=db.DATETIME)
     prop_list = db.Property(name="TestListDatetime", datatype=db.LIST(db.DATETIME))