[59.0] Image caching not working with Django

[kahkeong]

Im working with Django 4.0 and using the url_fetcher parameter when building the HTML as follows:

 html = HTML(
        string=template.render(context),
        base_url=settings.STATIC_ROOT,
        url_fetcher=django_url_fetcher
    )

It is working fine with v58.1 but Im having issue with v59.0.

Below is a snippet of the trace log:

  File "/Users/keong/.pyenv/versions/hcp/lib/python3.10/site-packages/weasyprint/images.py", line 106, in draw
    image_name = stream.add_image(self, width, height, interpolate, ratio)
  File "/Users/keong/.pyenv/versions/hcp/lib/python3.10/site-packages/weasyprint/pdf/stream.py", line 383, in add_image
    xobject = image.get_xobject(width, height, interpolate)
  File "/Users/keong/.pyenv/versions/hcp/lib/python3.10/site-packages/weasyprint/images.py", line 160, in get_xobject
    pillow_image = Image.open(io.BytesIO(self.image_data.data))
  File "/Users/keong/.pyenv/versions/hcp/lib/python3.10/site-packages/weasyprint/images.py", line 235, in data
    return Path(self._filename).read_bytes()
  File "/Users/keong/.pyenv/versions/3.10.7/lib/python3.10/pathlib.py", line 1126, in read_bytes
    with self.open(mode='rb') as f:
  File "/Users/keong/.pyenv/versions/3.10.7/lib/python3.10/pathlib.py", line 1119, in open
    return self._accessor.open(self, mode, buffering, encoding, errors,
FileNotFoundError: [Errno 2] No such file or directory: '/media/logos/abcd.png'

After some debugging, I found out the code that is responsible for caching the files is using relative path instead of absolute path.

I managed to get it work locally by adding an extra line right above L315
which combines the absolute path of my Django project with the relative file path.
filename = absolute_path_to_the_project + filename

[liZe]

Hi!

Do you use django-weasyprint? If so, the problem is probably in the django_url_fetcher function, and you should open an issue in django-weasyprint.

[kahkeong]

yes it is indeed an issue with django-weasyprint, django-weasyprint 2.2.0 resolved my issue, thank you !