From 86dfb55d2e091cf633dbd7aabcd49d96fb1f9d81 Mon Sep 17 00:00:00 2001
From: Pablo Galindo Salgado <Pablogsal@gmail.com>
Date: Fri, 22 Oct 2021 09:52:24 +0100
Subject: [PATCH] bpo-45562: Only show debug output from the parser in debug
 builds (GH-29140)

---
 Parser/tokenizer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index ae3874b09de..789a10b28fd 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -1043,11 +1043,13 @@ tok_nextc(struct tok_state *tok)
         else {
             rc = tok_underflow_file(tok);
         }
+#if defined(Py_DEBUG)
         if (Py_DebugFlag) {
             printf("line[%d] = ", tok->lineno);
             print_escape(stdout, tok->cur, tok->inp - tok->cur);
             printf("  tok->done = %d\n", tok->done);
         }
+#endif
         if (!rc) {
             tok->cur = tok->inp;
             return EOF;