From 70da34f13b3728f49700ad1ad9250b985d0d6989 Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Mon, 9 Jul 2012 10:03:54 +0200
Subject: [PATCH] Add a tweak to control whether formatter functions dump debug
 information.

---
 src/calibre/utils/formatter_functions.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/calibre/utils/formatter_functions.py b/src/calibre/utils/formatter_functions.py
index 621b991b51..fb92d04932 100644
--- a/src/calibre/utils/formatter_functions.py
+++ b/src/calibre/utils/formatter_functions.py
@@ -14,6 +14,7 @@ from math import trunc
 from calibre import human_readable
 from calibre.constants import DEBUG
 from calibre.ebooks.metadata import title_sort
+from calibre.utils.config import tweaks
 from calibre.utils.titlecase import titlecase
 from calibre.utils.icu import capitalize, strcmp, sort_key
 from calibre.utils.date import parse_date, format_date, now, UNDEFINED_DATE
@@ -1203,7 +1204,7 @@ from calibre.utils.formatter_functions import formatter_functions
 class UserFunction(FormatterUserFunction):
 ''' + func
     locals_ = {}
-    if DEBUG:
+    if DEBUG and tweaks.get('enable_template_debug_printing', False):
         print prog
     exec prog in locals_
     cls = locals_['UserFunction'](name, doc, arg_count, eval_func)