bpo-30441: Fix bug when modifying os.environ while iterating over it (#2409)
diff --git a/Misc/ACKS b/Misc/ACKS
index 910f819..3455c1b 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1088,6 +1088,7 @@
Tony Nelson
Trent Nelson
Andrew Nester
+Osvaldo Santana Neto
Chad Netzer
Max Neunhöffer
Anthon van der Neut
diff --git a/Misc/NEWS.d/next/Library/2017-06-29-14-25-14.bpo-30441.3Wh9kc.rst b/Misc/NEWS.d/next/Library/2017-06-29-14-25-14.bpo-30441.3Wh9kc.rst
new file mode 100644
index 0000000..55dd613
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2017-06-29-14-25-14.bpo-30441.3Wh9kc.rst
@@ -0,0 +1 @@
+Fix bug when modifying os.environ while iterating over it