[Matplotlib-devel] CTFontLogSuboptimalRequest

Paul Hobson pmhobson at gmail.com
Fri Jan 29 11:38:42 EST 2016


The warning is just that -- a warning,  It's not an error and after the
font cache has been built, you shouldn't see it again.

On Fri, Jan 29, 2016 at 3:53 AM, My Phan <mp21 at sanger.ac.uk> wrote:

> Hello,
>
> I have recently re-installed Matplotlib v1.5.1 because of Segmentation
> Fault 11. This seg fault was fixed with the new installation, however there
> is a bug in Font used as shown below. Can you please advise how I should
> fix this font issue? Many thanks and Best wishes, My.
>
>
> /Users/mp21/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/font_manager.py:273:
> UserWarning: Matplotlib is building the font cache using fc-list. This may
> take a moment.
>   warnings.warn('Matplotlib is building the font cache using fc-list. This
> may take a moment.')
> 2016-01-29 10:37:46.808 Python[9897:d0f] CoreText performance note: Client
> called CTFontCreateWithName() using name "Lucida Grande" and got font with
> PostScript name "LucidaGrande". For best performance, only use PostScript
> names when calling this API.
> 2016-01-29 10:37:46.808 Python[9897:d0f] CoreText performance note: Set a
> breakpoint on CTFontLogSuboptimalRequest to debug.
>
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