sorted not defined in python 2.3

[daniele.domenichelli@…]

In python 2.3 sorted is not defined and adding a new screenshot works, but after uploading the image an error page is showed.

This is a patch to correct this behaviour

tracscreenshots/api.py

@@ -7 +7 @@
 from trac.config import Option
 from trac.wiki.formatter import format_to_html, format_to_oneliner
 from trac.util.datefmt import to_timestamp, to_datetime, utc, pretty_timedelta
+from trac.util.compat import sorted
 
 class IScreenshotChangeListener(Interface):
     """Extension point interface for components that require notification

[Radek Bartoň]

Python 2.3? Are you kidding? :-)

[daniele.domenichelli@…]

Unluckily no :-(

And I cannot upgrade it...