Surface.create_for_data: Not Implemented yet.

[David Klasinc]

Kazam Screen caster, written in Python3, is using Cairo for doing graphics. Now, I've run into this:

File "../kazam/frontend/window_countdown.py", line 181, in createDropShadow
    surface = cairo.ImageSurface.create_for_data(data, format, width, height)
NotImplementedError: Surface.create_for_data: Not Implemented yet.

It appears that Surface.create_for_data isn't implemented. After inspecting the weird code in the original tar.gz I confirmed this:

static PyObject *
image_surface_create_for_data (PyTypeObject *type, PyObject *args) {
  cairo_surface_t *surface;
  cairo_format_t format;
  unsigned char *buffer;
  int width, height, stride = -1, res;
  Py_ssize_t buffer_len;
  PyObject *obj;

  // buffer function disabled
  PyErr_SetString(PyExc_NotImplementedError, "Surface.create_for_data: Not Implemented yet.");
  return NULL; /* By BigW: Everything past here is dead code */

  if (!PyArg_ParseTuple(args, "Oiii|i:Surface.create_for_data",
                        &obj, &format, &width, &height, &stride))
    return NULL;

However, after checking couple of other repositories with pycairo, create_for_data() function is different, without the weird return call.

I've checked:

http://cgit.freedesktop.org/pycairo/
git://git.cairographics.org/git/pycairo

Can this patch from 2011 be included in Ubuntu?
http://lists.cairographics.org/archives/cairo/2011-December/022563.html

And why am I the first one running into this? :)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Richard Clay (richoeq)]

New to installing patches. How do I update the version of pycairo on my computer?

I have git://git.cairographics.org/git/pycairo cloned to my local git repository.

[Muelli (ubuntu-bugs-auftrags-killer)]

FTR: pycairo 1.11.0 is now available from https://github.com/pygobject/pycairo/releases/tag/v1.11.0 : https://lists.cairographics.org/archives/cairo/2017-April/027919.html

[Richard Clay (richoeq)]

Thank you Muelli, that worked.

[Muelli (ubuntu-bugs-auftrags-killer)]

FTR: Debian has this bug here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=809479

[Christoph Reiter (lazka)]

This is fixed in 1.15.4-2