commit 5c0eed7375fdd791cc5e19ceabfab4170ad44062
author Berker Peksag <berker.peksag@gmail.com> Sun Sep 20 09:38:07 2020 +0300
committer GitHub <noreply@github.com> Sun Sep 20 09:38:07 2020 +0300
tree 7ddeaf0079a48d462f5427618466ad7218272710
parent bfee9fad84531a471fd7864e88947320669f68e2

bpo-12178: Fix escaping of escapechar in csv.writer() (GH-13710)

Co-authored-by: Itay Elbirt <anotahacou@gmail.com>

Modules/_csv.c

diff --git a/Modules/_csv.c b/Modules/_csv.c
index da61db9..594f6c1 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -1040,6 +1040,9 @@
                     else
                         want_escape = 1;
                 }
+                else if (c == dialect->escapechar) {
+                    want_escape = 1;
+                }
                 if (!want_escape)
                     *quoted = 1;
             }