bpo-34251: Restore msilib.Win64 to preserve compatibility (GH-8510)

(cherry picked from commit 11eb1a94704142385ffc07852739863ced8587d2)

Co-authored-by: Berker Peksag <berker.peksag@gmail.com>

diff --git a/Lib/msilib/__init__.py b/Lib/msilib/__init__.py
index 7ab8bcc52c68df4abe1b7bf64a3049172eca3592..8c5251d9baf81e274ae3b6a0a21413c1586c7b33 100644 (file)
--- a/Lib/msilib/__init__.py
+++ b/Lib/msilib/__init__.py
@@ -8,6 +8,8 @@ import string
 import sys
 
 AMD64 = "AMD64" in sys.version
+# Keep msilib.Win64 around to preserve backwards compatibility.
+Win64 = AMD64
 
 # Partially taken from Wine
 datasizemask=      0x00ff

diff --git a/Misc/NEWS.d/next/Library/2018-07-28-11-47-10.bpo-34251.q3elQ6.rst b/Misc/NEWS.d/next/Library/2018-07-28-11-47-10.bpo-34251.q3elQ6.rst
new file mode 100644 (file)
index 0000000..098f47e
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2018-07-28-11-47-10.bpo-34251.q3elQ6.rst
@@ -0,0 +1,2 @@
+Restore ``msilib.Win64`` to preserve backwards compatibility since it's
+already used by :mod:`distutils`' ``bdist_msi`` command.