Addresss pr comment

tomerfiliba · Apr 7, 2017 · 843b21e · 843b21e
1 parent b5caa23
commit 843b21e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/plumbum/cli/application.py b/plumbum/cli/application.py
@@ -349,8 +349,8 @@ def _handle_argument(val, argtype, name):
                 return argtype(val)
             except (TypeError, ValueError):
                 ex = sys.exc_info()[1]  # compat
-                raise WrongArgumentType("Argument of %s expected to be %r, not %r:\n    %r" % (
-                    name, str(argtype), val, ex))
+                raise WrongArgumentType("Argument of {name} expected to be {argtype}, not {val!r}:\n    {ex!r}".format(
+                    name=name, argtype=argtype, val=val, ex=ex))
         else:
             return NotImplemented