Merge branch 'fix-deprecations' into 'master'

Fix deprecation warning regarding invalid escape sequences.

See merge request poezio/slixmpp!40

slixmpp/plugins/xep_0323/stanza/sensordata.py

@@ -516,7 +516,7 @@ class Field(ElementBase):
         :param value: string
         """
 
-        pattern = re.compile("^\d+([|]\w+([.]\w+)*([|][^,]*)?)?(,\d+([|]\w+([.]\w+)*([|][^,]*)?)?)*$")
+        pattern = re.compile(r"^\d+([|]\w+([.]\w+)*([|][^,]*)?)?(,\d+([|]\w+([.]\w+)*([|][^,]*)?)?)*$")
         if pattern.match(value) is not None:
             self.xml.stringIds = value
         else:

slixmpp/thirdparty/mini_dateutil.py

@@ -160,7 +160,7 @@ except:
         return _fixed_offset_tzs[offsetmins]
 
 
-    _iso8601_parser = re.compile("""
+    _iso8601_parser = re.compile(r"""
         ^
         (?P<year> [0-9]{4})?(?P<ymdsep>-?)?
         (?P<month>[0-9]{2})?(?P=ymdsep)?