Add a few debug messages about locale selection

[jouvin@…]

I spent quite a lot of time to get I18N working because Babel is installed in a non standard location and it was not found by Trac. Unfortunatly, Trac is silent when it doesn't found Babel and it had been difficult to understand what whas the pb and after Babel was found, why it was not working…

I'd suggest to add a few debug message about locale selection. Attached is a proposed patch to trac/web/main.py.

Michel

[Christian Boos]

Ok, but the second log.debug about Babel not found should rather be done once in some place, next to the code to report Babel version, something like:

trac/web/chrome.py

@@ -354 +354 @@
         try:
             import babel
             babel_version = get_pkginfo(babel).get('version')
-            self.env.systeminfo.append(('Babel', babel_version))
-        except ImportError:
-            pass
+        except ImportError, e:
+            self.log.debug("Babel not found: %s", exception_to_unicode(e))
+            babel_version = '-'
+        self.env.systeminfo.append(('Babel', babel_version))
 
     # IEnvironmentSetupParticipant methods

(untested)

[Christian Boos]

Can you please test the above patch? Thanks.

[Christian Boos]

Wait, the sorting bug is actually more subtle.

[Christian Boos]

Improve diagnostics when Babel package is not found and add a debug message for Locale negotiation.

[jouvin@…]

Thanks, it works (for the debugging message, not for #7972).

[Christian Boos]

Committed in r8099.