spaces in error message

Robbybp · Jul 10, 2024 · 2b8f4e0 · 2b8f4e0
1 parent 8892c85
commit 2b8f4e0
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/pyomo/contrib/pynumero/interfaces/cyipopt_interface.py b/pyomo/contrib/pynumero/interfaces/cyipopt_interface.py
@@ -337,9 +337,9 @@ def __init__(self, nlp, intermediate_callback=None, halt_on_evaluation_error=Non
                 self._use_13arg_callback = False
             else:
                 raise ValueError(
-                    "Invalid intermediate callback. A function with either 12"
-                    "or 13 positional arguments, or a variable number of arguments,"
-                    "is expected."
+                    "Invalid intermediate callback. A function with either 12 or 13"
+                    " positional arguments, or a variable number of arguments, is"
+                    " expected."
                 )
 
     def _set_primals_if_necessary(self, x):