Use raw string for TEASER_REGEXP to avoid unknown escape warnings

Kwpolska · Kwpolska · commit 0d47aaf7ea04 · 2018-05-01T20:41:52.000+02:00
Signed-off-by: Chris Warrick &lt;kwpolska@gmail.com&gt;
diff --git a/nikola/post.py b/nikola/post.py
@@ -78,7 +78,7 @@
 
 __all__ = ('Post',)
 
-TEASER_REGEXP = re.compile('<!--\s*(TEASER_END|END_TEASER)(:(.+))?\s*-->', re.IGNORECASE)
+TEASER_REGEXP = re.compile(r'<!--\s*(TEASER_END|END_TEASER)(:(.+))?\s*-->', re.IGNORECASE)
 
 
 class Post(object):
