Build: Add Python 3.7

[skip ci]

diff --git a/devscripts/release b/devscripts/release
index 303bcddbb4736f5e442e8c24c50f606a3fa5d241..c32cdd6e368e3f4cfc13fbdd00a19611dc8ad7be 100755 (executable)
--- a/devscripts/release
+++ b/devscripts/release
@@ -9,7 +9,7 @@ python setup.py build_py &&
 python setup.py build &&
 python setup.py sdist &&
 
-for py in 2.6 2.7 3.4 3.5 3.6; do
+for py in 2.6 2.7 3.4 3.5 3.6 3.7; do
    find build -name '*.py[co]' -delete &&
    python$py setup.py build_py &&
    python$py setup.py build &&