Pyjama hangs up when querying Jamendo

[Daniel Nögel]

When the jamendo servers are not available or slow, pyjama hangs when trying to talk to them: The "querying jamendo" dialog occurs - nothing else happens, pyjama greys out.

The reasons seems to be a design smell:
1) If an error occurs while querying Jamendo, an error-message is going to be shown.
2) The function for the error-dialog embeds the dialog-call into a gtk.gdk.threads_enter() and gtk.gdk.threads_leave() in order to make it thread save.
3) Unfortunately these lines make pyjama hang up when the calling function is NOT threaded.

==> As the jamendo-query function can be called by threaded and by non-threaded functions, an error will always result in Pyjama hanging up - either caused by an non-threaded function causing this error or by an threaded function causing this error.

Possible Solution: Have an isolated Jamendo-query-thread with a queue (like the database-interface). So any error would be raised by the same thread.