merged results

[Syx]

Hello,
I try to develop my own plugin (it's quite functional )

But i don't understand the merge algorithm.
i have activate only my metadata plugin

my plugin found 7 results but only show 4 merged result:

Found 7 results 
Downloading from zzz took 1.50500011444 
--- 
Title               : Blacksad : Blacksad, Les Dessous De L'enquête
Author(s)           : Juanjo Guarnido & Juan Díaz Canales
Publisher           : Imbroglio
Series              : Blacksad #1
Rating              : 1.5
Published           : 2001-11-01T00:00:00+00:00
Identifiers         : isbn:220505290X, zzz:7494 
--- 
Title               : Blacksad, Tome HS1 : L'Histoire Des Aquarelles
Author(s)           : Juanjo Guarnido & Juan Díaz Canales
Publisher           : Dargaud
Series              : Blacksad #1
Rating              : 1.5
Published           : 2005-11-01T00:00:00+00:00
Identifiers         : isbn:220505810X, zzz:51853 
--- 
Title               : Blacksad, Tome HS2 : L'Histoire Des Aquarelles - Tome 2
Author(s)           : Juanjo Guarnido & Juan Díaz Canales
Publisher           : Dargaud
Series              : Blacksad #2
Rating              : 1
Published           : 2010-11-01T00:00:00+00:00
Identifiers         : isbn:9782205066425, zzz:115950 
--- 
Title               : Blacksad, Tome 1 : Quelque Part Entre Les Ombres
Author(s)           : Juanjo Guarnido & Juan Díaz Canales & Régis Loisel
Publisher           : Dargaud
Series              : Blacksad #1
Rating              : 2
Published           : 2000-11-01T00:00:00+00:00
Identifiers         : isbn:2205049658, zzz:15161 
--- 
Title               : Blacksad, Tome 2 : Arctic-Nation
Author(s)           : Juanjo Guarnido & Juan Díaz Canales
Publisher           : Dargaud
Series              : Blacksad #2
Rating              : 2
Published           : 2003-03-01T00:00:00+00:00
Identifiers         : isbn:2205051997, zzz:24600 
--- 
Title               : Blacksad, Tome 3 : Âme Rouge
Author(s)           : Juanjo Guarnido & Juan Díaz Canales
Publisher           : Dargaud
Series              : Blacksad #3
Rating              : 2
Published           : 2005-11-01T00:00:00+00:00
Identifiers         : isbn:220505564X, zzz:51823 
--- 
Title               : Blacksad, Tome 4 : L'Enfer, Le Silence
Author(s)           : Juanjo Guarnido & Juan Díaz Canales & Anne-Marie Ruiz & Ségolène Ferté
Publisher           : Dargaud
Series              : Blacksad #4
Rating              : 2
Published           : 2010-09-01T00:00:00+00:00
Identifiers         : isbn:9782205063134, zzz:113281

Merging results from different sources and finding earliest publication dates from the xisbn service 
We have 4 merged results, merging took: 1.26 seconds

Have you some ideas to show all result ?

another stupid question i try to insert print statement in my plugin for debugging but the console (calibre-debug.exe -g) don't show my print ?!?
I use log.info instead but for small case is not easy to debug

Thanks in advance and sorry for my poor English

[kovidgoyal]

Results that calibre thinks are identical are merged, even if they come from the same plugin. If you want to see the algorithm look at sources/identify.py.

You cannot use print statements to debug, as in newer calibre releases metadata plugins run in a worker process. If you want to use print plugins wrute so test code at the bottom of your plugin and run it with calibre-debug -e
see the builtin plugins for examples.

[Syx]

Thanks for your reply.

it's possible to interact in merge process without change the source code (I'm new on calibre and python dev) ?
or tweaking result for don't merge ?

[kovidgoyal]

No, it isn't.