Use Python 3 instead of 3.0.
diff --git a/Doc/library/binascii.rst b/Doc/library/binascii.rst
index 23939de..0f8a3de 100644
--- a/Doc/library/binascii.rst
+++ b/Doc/library/binascii.rst
@@ -127,7 +127,7 @@
The return value is in the range [-2**31, 2**31-1]
regardless of platform. In the past the value would be signed on
some platforms and unsigned on others. Use & 0xffffffff on the
- value if you want it to match 3.0 behavior.
+ value if you want it to match Python 3 behavior.
.. versionchanged:: 3.0
The return value is unsigned and in the range [0, 2**32-1]