From 5c0eed7375fdd791cc5e19ceabfab4170ad44062 Mon Sep 17 00:00:00 2001
From: Berker Peksag <berker.peksag@gmail.com>
Date: Sun, 20 Sep 2020 09:38:07 +0300
Subject: bpo-12178: Fix escaping of escapechar in csv.writer() (GH-13710)

Co-authored-by: Itay Elbirt <anotahacou@gmail.com>
---
 Modules/_csv.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'Modules/_csv.c')

diff --git a/Modules/_csv.c b/Modules/_csv.c
index da61db9377..594f6c1472 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -1040,6 +1040,9 @@ join_append_data(WriterObj *self, unsigned int field_kind, const void *field_dat
                     else
                         want_escape = 1;
                 }
+                else if (c == dialect->escapechar) {
+                    want_escape = 1;
+                }
                 if (!want_escape)
                     *quoted = 1;
             }
-- 
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