commit 223e501fb9c2b6ae21b96054e20c4c31d94a5d96
author Christian Heimes <christian@python.org> Mon Sep 24 19:21:12 2018 +0200
committer Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Mon Sep 24 10:21:12 2018 -0700
tree b3fd130b823aba8f38732cae4457910cbe2ba5d2
parent a46467ff198c42c8f34768c7be4b4562f6f44736

bpo-34791: xml package obeys ignore env flags (GH-9544)



The xml.sax and xml.dom.domreg modules now obey
sys.flags.ignore_environment.

Signed-off-by: Christian Heimes <christian@python.org>



https://bugs.python.org/issue34791

Lib/xml/dom/domreg.py

diff --git a/Lib/xml/dom/domreg.py b/Lib/xml/dom/domreg.py
index 8c3d901..69c17ee 100644
--- a/Lib/xml/dom/domreg.py
+++ b/Lib/xml/dom/domreg.py
@@ -6,6 +6,8 @@
 # should be published by posting to xml-sig@python.org, and are
 # subsequently recorded in this file.
 
+import sys
+
 well_known_implementations = {
     'minidom':'xml.dom.minidom',
     '4DOM': 'xml.dom.DOMImplementation',
@@ -55,7 +57,7 @@
         return mod.getDOMImplementation()
     elif name:
         return registered[name]()
-    elif "PYTHON_DOM" in os.environ:
+    elif not sys.flags.ignore_environment and "PYTHON_DOM" in os.environ:
         return getDOMImplementation(name = os.environ["PYTHON_DOM"])
 
     # User did not specify a name, try implementations in arbitrary