(Development) What are these apparently-undefined python operators?

offby1 · 06-26-2010, 11:00 AM

I'm looking at the calibre/gui2/convert/look_and_feel.py module, and it's got a bunch of operators in it whose provenance I can't determine:

Code:

    TITLE = _('Look & Feel')
    ICON  = I('lookfeel.svg')
    HELP  = _('Control the look and feel of the output')

The "_" and "I" functions... what are those and where are they defined?

kovidgoyal · 06-26-2010, 11:01 AM

They are special builtins the calibre environment defines. They are for easy access to resource files (icons/templates/etc.) and are defined in calibre.utils.resources

offby1 · 06-26-2010, 11:06 AM

Well, that explains it. I'm editing using Emacs with flymake (an on-the-fly syntax checker) and it's choking on all of these undefined functions. I guess I need to figure out how to make it aware of those functions.

offby1 · 06-26-2010, 11:19 AM

@kovidgoyal: If you're still tracking this, I'm interested in maybe doing some ui tweaking in the preferences dialog, on Mac OSX. Does the QT designer work with these ui definitions, or do I have to modify them by hand?

kovidgoyal · 06-26-2010, 11:56 AM

They are created by Qt Designer.

kovidgoyal · 06-26-2010, 11:57 AM

Quote:

Originally Posted by offby1

Well, that explains it. I'm editing using Emacs with flymake (an on-the-fly syntax checker) and it's choking on all of these undefined functions. I guess I need to figure out how to make it aware of those functions.

There's usually a way to specify builtins for syntax checkers.I use vim with pyflakes and that allows you to set a global variable with a list of extra builtins.

06-26-2010, 11:00 AM	#1
offby1 Junior Member Posts: 8 Karma: 10 Join Date: Jun 2010 Device: iPhone w/ Stanza	(Development) What are these apparently-undefined python operators? I'm looking at the calibre/gui2/convert/look_and_feel.py module, and it's got a bunch of operators in it whose provenance I can't determine: Code: TITLE = _('Look & Feel') ICON = I('lookfeel.svg') HELP = _('Control the look and feel of the output') The "_" and "I" functions... what are those and where are they defined?

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06-26-2010, 11:01 AM	#2
kovidgoyal creator of calibre Posts: 45,164 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	They are special builtins the calibre environment defines. They are for easy access to resource files (icons/templates/etc.) and are defined in calibre.utils.resources

06-26-2010, 11:06 AM	#3
offby1 Junior Member Posts: 8 Karma: 10 Join Date: Jun 2010 Device: iPhone w/ Stanza	Well, that explains it. I'm editing using Emacs with flymake (an on-the-fly syntax checker) and it's choking on all of these undefined functions. I guess I need to figure out how to make it aware of those functions.

06-26-2010, 11:19 AM	#4
offby1 Junior Member Posts: 8 Karma: 10 Join Date: Jun 2010 Device: iPhone w/ Stanza	@kovidgoyal: If you're still tracking this, I'm interested in maybe doing some ui tweaking in the preferences dialog, on Mac OSX. Does the QT designer work with these ui definitions, or do I have to modify them by hand?

06-26-2010, 11:56 AM	#5
kovidgoyal creator of calibre Posts: 45,164 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	They are created by Qt Designer.

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