Example plugin not working?

ElmoFuntz · 11-24-2020, 02:27 PM

So I'm new to Python and the Calibre API (but not programming) and was trying to muddle my way through figuring both out by updating an old plugin for v5. Starting to think just redoing the pieces I need for now might be easier. To do this I was starting at the basics with the stuff at https://manual.calibre-ebook.com/creating_plugins.html but the very basic plugin that should update the publisher to "hello world" is not even working. It shows the plugin loaded but importing a new epub does not add the publisher when there is none in the original metadata or when there is a publisher on the book it loads the one on the epub. Since I'm trying to do a plugin that will be manipulating/adding metadata for m4b files this example looked like a good start. Can anyone give me an idea of why? Does it need to be updated for v5? TIA.

DNSB · 11-24-2020, 02:53 PM

Quote:

Originally Posted by ElmoFuntz

So I'm new to Python and the Calibre API (but not programming) and was trying to muddle my way through figuring both out by updating an old plugin for v5. Starting to think just redoing the pieces I need for now might be easier. To do this I was starting at the basics with the stuff at https://manual.calibre-ebook.com/creating_plugins.html but the very basic plugin that should update the publisher to "hello world" is not even working. It shows the plugin loaded but importing a new epub does not add the publisher when there is none in the original metadata or when there is a publisher on the book it loads the one on the epub. Since I'm trying to do a plugin that will be manipulating/adding metadata for m4b files this example looked like a good start. Can anyone give me an idea of why? Does it need to be updated for v5? TIA.

If you check the documentation for the helloworld plugin, you'll find the words:

Quote:

Every time you use calibre to convert a book, the plugin’s run() method will be called and the converted book will have its publisher set to “Hello World”. This is a trivial plugin, lets move on to a more complex example that actually adds a component to the user interface.

I have not tried installing it so I have no idea if it will work when converting an ebook.

ElmoFuntz · 11-24-2020, 03:03 PM

Yeah I noticed that after I posted it said during conversion so I tried a conversion and same deal no change unless I am looking in the wrong place. I also dropped a print statement in to see if it even reaches the line that should be setting this but the conversion just sits at "waiting" when in debug mode.

ElmoFuntz · 11-24-2020, 03:10 PM

Quote:

Originally Posted by ElmoFuntz

Yeah I noticed that after I posted it said during conversion so I tried a conversion and same deal no change unless I am looking in the wrong place. I also dropped a print statement in to see if it even reaches the line that should be setting this but the conversion just sits at "waiting" when in debug mode.

Nevermind at first I did not think it did because it's showing the original data but if I select the format I converted to and hit the "set the metadata from the selected format" button it shows the change. Is this the only way to see that?

So now I need to figure out how I can do this same thing at import.. Thanks though this helps.

DNSB · 11-24-2020, 03:29 PM

Quote:

Originally Posted by ElmoFuntz

Nevermind at first I did not think it did because it's showing the original data but if I select the format I converted to and hit the "set the metadata from the selected format" button it shows the change. Is this the only way to see that?

As near as I can tell, it is updating the metadata in the converted book so that will be needed.

Quote:

Originally Posted by ElmoFuntz

So now I need to figure out how I can do this same thing at import.. Thanks though this helps.

Have fun.

DisasterArea · 12-11-2020, 02:59 AM

Dear ElmoFuntz, I observed the same behavior. I'm trying to start API Programming but it seems that the examples and documentation do not reflect the new 5 th version. I installed that Hello World example an did convert one Book (yes and restarted calirbe, if this might be necessary). But there is not "Hello World" in any of the fields. I get stuck here and am searching for a good API documentation, examples. If you find some, let us know.

11-24-2020, 02:27 PM	#1
ElmoFuntz Junior Member Posts: 5 Karma: 10 Join Date: Jan 2013 Device: Nook, iPad, Audiobooks	Example plugin not working? So I'm new to Python and the Calibre API (but not programming) and was trying to muddle my way through figuring both out by updating an old plugin for v5. Starting to think just redoing the pieces I need for now might be easier. To do this I was starting at the basics with the stuff at https://manual.calibre-ebook.com/creating_plugins.html but the very basic plugin that should update the publisher to "hello world" is not even working. It shows the plugin loaded but importing a new epub does not add the publisher when there is none in the original metadata or when there is a publisher on the book it loads the one on the epub. Since I'm trying to do a plugin that will be manipulating/adding metadata for m4b files this example looked like a good start. Can anyone give me an idea of why? Does it need to be updated for v5? TIA.

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11-24-2020, 03:03 PM	#3
ElmoFuntz Junior Member Posts: 5 Karma: 10 Join Date: Jan 2013 Device: Nook, iPad, Audiobooks	Yeah I noticed that after I posted it said during conversion so I tried a conversion and same deal no change unless I am looking in the wrong place. I also dropped a print statement in to see if it even reaches the line that should be setting this but the conversion just sits at "waiting" when in debug mode.

12-11-2020, 02:59 AM	#6
DisasterArea Junior Member Posts: 7 Karma: 10 Join Date: Jan 2012 Device: none	Dear ElmoFuntz, I observed the same behavior. I'm trying to start API Programming but it seems that the examples and documentation do not reflect the new 5 th version. I installed that Hello World example an did convert one Book (yes and restarted calirbe, if this might be necessary). But there is not "Hello World" in any of the fields. I get stuck here and am searching for a good API documentation, examples. If you find some, let us know.