deprecate python 2.7 (#616)

pyca · Aug 14, 2020 · 0e9a6c2 · 0e9a6c2
1 parent fa6d813
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diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -4,6 +4,9 @@ Changelog
 1.5.0 (UNRELEASED)
 ------------------
 
+* Deprecated support for Python 2.7. Support for this version will be removed
+  in the next release.
+
 1.4.0 (2020-05-25)
 ------------------
 

diff --git a/src/nacl/__init__.py b/src/nacl/__init__.py
@@ -14,6 +14,9 @@
 
 from __future__ import absolute_import, division, print_function
 
+import sys
+import warnings
+
 __all__ = [
     "__title__",
     "__summary__",
@@ -38,3 +41,13 @@
 
 __license__ = "Apache License 2.0"
 __copyright__ = "Copyright 2013-2018 {0}".format(__author__)
+
+
+if sys.version_info[0] == 2:
+    warnings.warn(
+        "Python 2 is no longer supported by the Python core team. Support for "
+        "it is now deprecated in PyNaCl, and will be removed in the "
+        "next release.",
+        UserWarning,
+        stacklevel=2,
+    )