When https_proxy is in the environment, output a warning and disable it as

urllib/urllib2 don't support it; see LP #122551.

buildd

@@ -21,6 +21,7 @@
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+import os
 import re
 import sys
 import urllib2
@@ -80,6 +81,12 @@ elif op in ("retry", "rescore") and options.architecture:
 else:
     oneArch = False
 
+# Clear https_proxy env var as it's not supported in urllib/urllib2; see
+# LP #122551
+if os.environ.has_key('https_proxy'):
+    print >> sys.stderr, "Ignoring https_proxy (no support in urllib/urllib2; see LP #122551)"
+    del os.environ['https_proxy']
+
 # Prepare Launchpad cookie.
 launchpadCookie = common.prepareLaunchpadCookie()
 urlopener = common.setupLaunchpadUrlOpener(launchpadCookie)

debian/changelog

@@ -2,6 +2,8 @@ ubuntu-dev-tools (0.40ubuntu4) UNRELEASED; urgency=low
 
   * Replace .BB in doc/pbuilder-dist.1 with a newline to fix a syntax error.
   * Drop spurious tab in buildd.
+  * When https_proxy is in the environment, output a warning and disable it as
+    urllib/urllib2 don't support it; see LP #122551.
 
  -- Loic Minier <lool@dooz.org>  Mon, 18 Aug 2008 12:21:58 +0200