Remove some Python 2 references

docs/usage-notes.rst

@@ -157,10 +157,6 @@ This behavior applies to ``complex``, ``float``, ``Decimal``, and ``Fraction``
 values that have an integer equivalent. It doesn't apply to values that don't
 have an integer equivalent (such as ``1.1`` or ``complex(1, 1)``).
 
-On Python 2 only, ``unicode`` types are converted to ``str`` types
-(with UTF-8 encoding) before being sent to Redis. ``str`` types are decoded to
-``unicode`` types after being retrieved from Redis (if possible).
-
 Security considerations
 -----------------------
 

redis_collections/base.py

@@ -5,11 +5,8 @@
 import abc
 from decimal import Decimal
 from fractions import Fraction
-import uuid
-
-# We use pickle instead of cPickle on Python 2 intentionally, see
-# http://bugs.python.org/issue5518
 import pickle
+import uuid
 
 import redis
 

redis_collections/dicts.py

@@ -34,8 +34,6 @@ class Dict(RedisCollection, collections_abc.MutableMapping):
     <https://docs.python.org/3/library/stdtypes.html#mapping-types-dict>`_ for
     usage notes.
 
-    The :func:`viewitems`, :func:`viewkeys`, and :func:`viewvalues` methods
-    from Python 2.7's dictionary type are not implemented.
     """
 
     _pickle_key = RedisCollection._pickle_3
@@ -430,8 +428,6 @@ class Counter(Dict):
     Counter inherits from Dict, so see its API documentation for information
     on other methods.
 
-    The :func:`viewitems`, :func:`viewkeys`, and :func:`viewvalues` methods
-    from Python 2.7's Counter type are not implemented.
     """
 
     def __init__(self, *args, **kwargs):
@@ -670,8 +666,6 @@ class DefaultDict(Dict):
     DefaultDict inherits from Dict, so see its API documentation for
     information on other methods.
 
-    The :func:`viewitems`, :func:`viewkeys`, and :func:`viewvalues` methods
-    from Python 2.7's Counter type are not implemented.
     """
 
     def __init__(self, *args, **kwargs):

tests/test_lists.py

@@ -228,7 +228,6 @@ def test_clear(self):
         redis_list = self.create_list(data)
         redis_cached = self.create_list(data, writeback=True)
 
-        # Python 2.x lists don't have a clear method
         for L in (redis_list, redis_cached):
             L[0] = 'Zero'
             L.clear()