From anntzer.lee at gmail.com  Fri Apr  2 09:09:14 2021
From: anntzer.lee at gmail.com (Antony Lee)
Date: Fri, 2 Apr 2021 15:09:14 +0200
Subject: [Matplotlib-devel] ANN: mplcairo 0.4 release
Message-ID: <CAGRr6BG69M3pTuB7ZHkXTy84XWktM0S+UbTiJZd1SHJO=k4G7Q@mail.gmail.com>

Dear all,

I am pleased to announce the release of mplcairo 0.4.

mplcairo is a Matplotlib backend based on the well-known cairo library,
supporting output to both raster (including interactively) and vector
formats.  In other words, it provides the functionality of Matplotlib's
{,qt5,gtk3,wx,tk,macos}{agg,cairo}, pdf, ps, and svg backends.

Per Matplotlib's standard API, the backend can be selected by calling

    matplotlib.use("module://mplcairo.qt")

or setting your MPLBACKEND environment variable to `module://mplcairo.qt`
for Qt5, and similarly for other toolkits.

mplcairo 0.4 adds support for Matplotlib 3.4, support for retrieving
underlying cairo contexts, as well as the usual bugfixes over 0.3.

Enjoy,

Antony Lee
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From antony.lee at institutoptique.fr  Fri Apr  2 09:09:51 2021
From: antony.lee at institutoptique.fr (Antony Lee)
Date: Fri, 2 Apr 2021 15:09:51 +0200
Subject: [Matplotlib-devel] mpl-3.4 vs. mplcairo?
In-Reply-To: <CAG3t+pE1OgnxkULP3u5dX5yvpNnX_3OM9bC-bFWBHOJMD=XeJA@mail.gmail.com>
References: <CAG3t+pHh-YP4ReK6MpG7NQL9-8oHameWD+qi-oid6h=Kst7T0Q@mail.gmail.com>
 <CAGRr6BGMJiRrYZhMz0bKTS=xT1+hpC6qqpnEn_m4ZMYHzDut+A@mail.gmail.com>
 <CAG3t+pE1OgnxkULP3u5dX5yvpNnX_3OM9bC-bFWBHOJMD=XeJA@mail.gmail.com>
Message-ID: <CAGRr6BEtDiJL=uZR6rYYO5LFZJz4wdtXTt-PD5xPbG4ZjDFBuQ@mail.gmail.com>

mplcairo 0.4 is out now, and should fix the problem.
Antony

On Mon, Mar 29, 2021 at 4:59 PM Neal Becker <ndbecker2 at gmail.com> wrote:

> Thanks, looking forward to it!
>
> On Mon, Mar 29, 2021 at 10:38 AM Antony Lee
> <antony.lee at institutoptique.fr> wrote:
> >
> > I need to make a new release for mplcairo.  Will try to get it out in
> the coming days...
> > Antony
> >
> > On Mon, Mar 29, 2021 at 2:11 PM Neal Becker <ndbecker2 at gmail.com> wrote:
> >>
> >> Just updated out-of-date python modules including mpl.  Now if I try a
> >> simple plot I get:
> >> --------------
> >> In [2]: Traceback (most recent call last):
> >>   File
> "/home/nbecker/.local/lib/python3.9/site-packages/mplcairo/qt.py",
> >> line 12, in paintEvent
> >>     if self._update_dpi():
> >> AttributeError: 'FigureCanvasQTCairo' object has no attribute
> '_update_dpi'
> >> -----------
> >>
> >> if using backend: module://mplcairo.qt, which is my default.
> >> Removing this from matplotlibrc the plot works fine.
> >>
> >> fedora 33
> >> python 3.9.2
> >> mplcairo                          0.3.post38+g3bcf15c
> >> matplotlib                        3.4.0
> >> PyQt5                             5.15.4
> >> PyQt5-Qt5                         5.15.2
> >>
> >> --
> >> Those who don't understand recursion are doomed to repeat it
> >> _______________________________________________
> >> Matplotlib-devel mailing list
> >> Matplotlib-devel at python.org
> >> https://mail.python.org/mailman/listinfo/matplotlib-devel
>
>
>
> --
> Those who don't understand recursion are doomed to repeat it
>
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From ndbecker2 at gmail.com  Fri Apr  2 09:36:56 2021
From: ndbecker2 at gmail.com (Neal Becker)
Date: Fri, 2 Apr 2021 09:36:56 -0400
Subject: [Matplotlib-devel] [Matplotlib-users] ANN: mplcairo 0.4 release
In-Reply-To: <CAGRr6BG69M3pTuB7ZHkXTy84XWktM0S+UbTiJZd1SHJO=k4G7Q@mail.gmail.com>
References: <CAGRr6BG69M3pTuB7ZHkXTy84XWktM0S+UbTiJZd1SHJO=k4G7Q@mail.gmail.com>
Message-ID: <CAG3t+pHyUaRbrZj05vxKpkhtk77u1JLfX5=UnCKzSiSGfTYYaQ@mail.gmail.com>

Thanks, and confirm this fixes the issue.
Hopefully mplcairo will be incorporated into mpl soon and such
breakage will be avoided.

On Fri, Apr 2, 2021 at 9:09 AM Antony Lee <anntzer.lee at gmail.com> wrote:
>
> Dear all,
>
> I am pleased to announce the release of mplcairo 0.4.
>
> mplcairo is a Matplotlib backend based on the well-known cairo library, supporting output to both raster (including interactively) and vector formats.  In other words, it provides the functionality of Matplotlib's {,qt5,gtk3,wx,tk,macos}{agg,cairo}, pdf, ps, and svg backends.
>
> Per Matplotlib's standard API, the backend can be selected by calling
>
>     matplotlib.use("module://mplcairo.qt")
>
> or setting your MPLBACKEND environment variable to `module://mplcairo.qt` for Qt5, and similarly for other toolkits.
>
> mplcairo 0.4 adds support for Matplotlib 3.4, support for retrieving underlying cairo contexts, as well as the usual bugfixes over 0.3.
>
> Enjoy,
>
> Antony Lee
> _______________________________________________
> Matplotlib-users mailing list
> Matplotlib-users at python.org
> https://mail.python.org/mailman/listinfo/matplotlib-users



-- 
Those who don't understand recursion are doomed to repeat it

From tcaswell at gmail.com  Fri Apr  2 20:00:51 2021
From: tcaswell at gmail.com (Thomas Caswell)
Date: Fri, 2 Apr 2021 20:00:51 -0400
Subject: [Matplotlib-devel] Major refactor of Axes internals just merged
Message-ID: <CAA48SF-snQYyQN=RT3c12qtkdiGqVfV-=YfoRGsuvm2oYrTi6A@mail.gmail.com>

Folks,

We just merged a major refactor of how the Axes object stores its children
[1].  Previously the children were stored across several lists by type and
were sorted and merged at draw time (which is the source of the long
standing bug [2]) whereas now there is a single list of children and
back-compatibility shims to access the children by type.

We expect this to be very good thing going forward, however in the short
time we expect that there are going to be some unforeseen consequences due
to this change.  Because of this, we held of on merging this until after we
got 3.4 release so that we have ~6 months of this being on the default
branch before it is released.

If you have any issues please reach out to us!  It is unlikely that we will
revert this change, but we will definitely extend and improve the shims as
needed :)

Thank you to Elliott for getting this work done!

Tom

[1] https://github.com/matplotlib/matplotlib/pull/18216
[2] https://github.com/matplotlib/matplotlib/issues/1622

-- 
Thomas Caswell
tcaswell at gmail.com
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From pmhobson at gmail.com  Sat Apr  3 08:33:22 2021
From: pmhobson at gmail.com (Paul Hobson)
Date: Sat, 3 Apr 2021 05:33:22 -0700
Subject: [Matplotlib-devel] Major refactor of Axes internals just merged
In-Reply-To: <CAA48SF-snQYyQN=RT3c12qtkdiGqVfV-=YfoRGsuvm2oYrTi6A@mail.gmail.com>
References: <CAA48SF-snQYyQN=RT3c12qtkdiGqVfV-=YfoRGsuvm2oYrTi6A@mail.gmail.com>
Message-ID: <CADT3MEB5Z-goBzs7qTWKGNCxAZ-sDjhb=GJ14TBjG+jOb03J2g@mail.gmail.com>

Wow. Congrats on such a big milestone. Great work, Elliot. It's nuts seeing
issue #1612 closed by #18216.

I'm going to be cleaning up all of my repos at work (I found a new job) for
the next week. So I'm sure all of my CI will let me know if any big issues
come up.

-Paul

On Fri, Apr 2, 2021 at 5:01 PM Thomas Caswell <tcaswell at gmail.com> wrote:

> Folks,
>
> We just merged a major refactor of how the Axes object stores its children
> [1].  Previously the children were stored across several lists by type and
> were sorted and merged at draw time (which is the source of the long
> standing bug [2]) whereas now there is a single list of children and
> back-compatibility shims to access the children by type.
>
> We expect this to be very good thing going forward, however in the short
> time we expect that there are going to be some unforeseen consequences due
> to this change.  Because of this, we held of on merging this until after we
> got 3.4 release so that we have ~6 months of this being on the default
> branch before it is released.
>
> If you have any issues please reach out to us!  It is unlikely that we
> will revert this change, but we will definitely extend and improve the
> shims as needed :)
>
> Thank you to Elliott for getting this work done!
>
> Tom
>
> [1] https://github.com/matplotlib/matplotlib/pull/18216
> [2] https://github.com/matplotlib/matplotlib/issues/1622
>
> --
> Thomas Caswell
> tcaswell at gmail.com
> _______________________________________________
> Matplotlib-devel mailing list
> Matplotlib-devel at python.org
> https://mail.python.org/mailman/listinfo/matplotlib-devel
>
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From pmhobson at gmail.com  Sun Apr 25 23:17:13 2021
From: pmhobson at gmail.com (Paul Hobson)
Date: Sun, 25 Apr 2021 20:17:13 -0700
Subject: [Matplotlib-devel] Query
In-Reply-To: <CAC2pjDJ9qqjDYrnO6COAfu-y=DP=Fr8E+TE-=8vBcxsmtKhKfw@mail.gmail.com>
References: <CAC2pjDJ9qqjDYrnO6COAfu-y=DP=Fr8E+TE-=8vBcxsmtKhKfw@mail.gmail.com>
Message-ID: <CADT3MEAgMO8O74y8PJARgni4d943APDs2yVAqDbr3_ht+atJMg@mail.gmail.com>

Aditya,

Thanks for your interest in contributing to matplotlib. The top-level
navigation bar at matplotlib's website (https://matplotlib.org) has a
section titled "Contributing". Give that a read and let us know if you
have any questions.

Cheers,
-Paul

On Sun, Apr 25, 2021 at 8:00 PM Aditya Gupta <adityakumargupta115 at gmail.com>
wrote:

> Dear sir,
>
> I Aditya Kumar Gupta , I am 1st year student at VIT and wanted to
> contribute in your matplotlib project . Can you tell me how I can
> contribute in this in a better way?
> _______________________________________________
> Matplotlib-devel mailing list
> Matplotlib-devel at python.org
> https://mail.python.org/mailman/listinfo/matplotlib-devel
>
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