If the user's environment has set the BROWSER environment variable (as Gnome
seems to do), the user may not be aware of its contents. Attempt to add any
to _browsers.
closes bug #429136
diff --git a/Lib/webbrowser.py b/Lib/webbrowser.py
index ad195e0..055705d 100644
--- a/Lib/webbrowser.py
+++ b/Lib/webbrowser.py
@@ -306,11 +306,14 @@
# It's the user's responsibility to register handlers for any unknown
# browser referenced by this value, before calling open().
_tryorder = os.environ["BROWSER"].split(":")
-else:
- # Optimization: filter out alternatives that aren't available, so we can
- # avoid has_key() tests at runtime. (This may also allow some unused
- # classes and class-instance storage to be garbage-collected.)
- _tryorder = filter(lambda x: _browsers.has_key(x.lower())
- or x.find("%s") > -1, _tryorder)
+
+for cmd in _tryorder:
+ if not _browsers.has_key(cmd.lower()):
+ if _iscommand(cmd.lower()):
+ register(cmd.lower(), None, GenericBrowser("%s %%s" % cmd.lower()))
+
+_tryorder = filter(lambda x: _browsers.has_key(x.lower())
+ or x.find("%s") > -1, _tryorder)
+# what to do if _tryorder is now empty?
# end