Added r""" to the docstring to avoid warnings in python3

goldvitaly · web-flow · commit 5f945723dc62 · 2020-04-06T04:33:51.000+02:00
Added r""" to the docstring to avoid warnings in python3

Warning example:
DeprecationWarning: invalid escape sequence \d
diff --git a/src/past/types/oldstr.py b/src/past/types/oldstr.py
@@ -20,7 +20,7 @@ def __instancecheck__(cls, instance):
 
 
 def unescape(s):
-    """
+    r"""
     Interprets strings with escape sequences
 
     Example:
