Fixes #3623: Word expansion for interfaces

docs/release-notes/version-2.6.md

@@ -4,6 +4,7 @@
 
 * [#2050](https://github.com/netbox-community/netbox/issues/2050) - Preview image attachments when hovering the link
 * [#3187](https://github.com/netbox-community/netbox/issues/3187) - Add rack selection field to rack elevations
+* [#3623](https://github.com/netbox-community/netbox/issues/3623) - Add word expansion during interface creation
 
 ## Bug Fixes
 

netbox/utilities/forms.py

@@ -60,8 +60,13 @@ def parse_alphanumeric_range(string):
             for n in list(range(int(begin), int(end) + 1)):
                 values.append(n)
         else:
-            for n in list(range(ord(begin), ord(end) + 1)):
-                values.append(chr(n))
+            # Value-based
+            if begin == end:
+                values.append(begin)
+            # Range-based
+            else:
+                for n in list(range(ord(begin), ord(end) + 1)):
+                    values.append(chr(n))
     return values