From d31efb9f01520ae8f1017921baa352982f78a3ec Mon Sep 17 00:00:00 2001
From: Maurits van Rees <maurits@vanrees.org>
Date: Thu, 10 Sep 2020 17:43:31 +0200
Subject: [PATCH] Fixed invalid escape sequences.

---
 news/3130.bugfix                      | 2 ++
 plone/app/caching/operations/utils.py | 6 ++----
 2 files changed, 4 insertions(+), 4 deletions(-)
 create mode 100644 news/3130.bugfix

diff --git a/news/3130.bugfix b/news/3130.bugfix
new file mode 100644
index 0000000..c763a41
--- /dev/null
+++ b/news/3130.bugfix
@@ -0,0 +1,2 @@
+Fixed invalid escape sequences.
+[maurits]
diff --git a/plone/app/caching/operations/utils.py b/plone/app/caching/operations/utils.py
index 6a244ba..f3bb856 100644
--- a/plone/app/caching/operations/utils.py
+++ b/plone/app/caching/operations/utils.py
@@ -33,11 +33,9 @@
 logger = logging.getLogger('plone.app.caching')
 
 parseETagLock = allocate_lock()
-# etagQuote = re.compile('(\s*\"([^\"]*)\"\s*,{0,1})')
-# etagNoQuote = re.compile('(\s*([^,]*)\s*,{0,1})')
 
-etagQuote = re.compile('(\s*(W\/)?\"([^\"]*)\"\s*,?)')
-etagNoQuote = re.compile('(\s*(W\/)?([^,]*)\s*,?)')
+etagQuote = re.compile(r'(\s*(W\/)?"([^"]*)"\s*,?)')
+etagNoQuote = re.compile(r'(\s*(W\/)?([^,]*)\s*,?)')
 
 #
 # Operation helpers, used in the implementations of interceptResponse() and