From faaf1777e4c2f6f134b8e9a6f11f98d7aab28b86 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Wed, 17 Apr 2019 21:10:08 +0200
Subject: [PATCH] Fix the argument parsing TypeError message

- parens are already added by the _LOCATION at call site
- fix plural-"s" logic
---
 src/derive_utils.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/derive_utils.rs b/src/derive_utils.rs
index cd9c9ca7..b578bd40 100644
--- a/src/derive_utils.rs
+++ b/src/derive_utils.rs
@@ -46,11 +46,10 @@ pub fn parse_fn_args<'p>(
     let nkeywords = kwargs.map_or(0, PyDict::len);
     if !accept_args && !accept_kwargs && (nargs + nkeywords > params.len()) {
         return Err(TypeError::py_err(format!(
-            "{}{} takes at most {} argument{} ({} given)",
+            "{} takes at most {} argument{} ({} given)",
             fname.unwrap_or("function"),
-            if fname.is_some() { "()" } else { "" },
             params.len(),
-            if params.len() == 1 { "s" } else { "" },
+            if params.len() == 1 { "" } else { "s" },
             nargs + nkeywords
         )));
     }