fixing minor bugs found in XML reader, we solved #7, #8, #9 and #10 issues;...

fixing minor bugs found in XML reader, we solved #7 (closed), #8 (closed), #9 (closed) and #10 (closed) issues; still - the code needs more testing

plwn/readers/wnxml.py

@@ -40,6 +40,7 @@ _POSES = {
 _RELKINDS = {
     u'relacja pomiędzy synsetami': en.RelationKind.synset,
     u'relacja leksykalna': en.RelationKind.lexical,
+    u'relacja synonimii': en.RelationKind.lexical
 }
 _BOOLVALUES = {u'true': True, u'false': False}
 
@@ -118,7 +119,17 @@ class WNXMLReader(object):
         id_ = int(elem.get('id'))
         var = int(elem.get('variant'))
         pos = _POSES[elem.get('pos')]
-        dom = en.Domain(elem.get('domain'))
+        dom = elem.get('domain')
+        try:
+            dom = en.Domain(dom)
+        except ValueError:
+            try:
+                dom = getattr(en.Domain, dom)
+            except AttributeError:
+                raise ValueError(
+                    "The domains found in the dump are incompatible with "
+                    "current library version."
+                )
 
         self._schema.take_lexical_unit(
             id_,