commented out label function that is still not working, implementing quick fix that should be reverted later

Author: juangmendoza19

Diff for: pygsti/baseobjs/errorgenbasis.py

@@ -740,6 +740,15 @@ def label_index(self, label, ok_if_missing=False, identity_label='I'):
         identity_label : str, optional (default 'I')
             An optional string specifying the label used to denote the identity in basis element labels.
         """
+        try:
+            return self.labels.index(label)
+        except ValueError as error:
+            
+            if ok_if_missing:
+                return None
+            else:
+                raise error
+        '''
         if isinstance(label, _LocalElementaryErrorgenLabel):
             label = _GlobalElementaryErrorgenLabel.cast(label, self.sslbls, identity_label=identity_label)
 
@@ -774,7 +783,7 @@ def label_index(self, label, ok_if_missing=False, identity_label='I'):
 
         return base + indices[label]
         return base + indices[elemgen_label]
-        
+        '''
 
     #@property
     #def sslbls(self):