Dear, I would like to try WeasyPrint [1] to convert some HTML docs to PDF ones and maybe print them. Or maybe presentation etc.
[1] https://weasyprint.org/ Well, excluding the check phase at first because some dependencies does not seem clean with Python2/Python3. Anyway! it is almost straightforward with `guix import pypi -r weasyprint'. Awesome ! (there is some tweaks in url: "cairosvg" -> "CairoSVG") However, the command `weasyprint` fails at run time. Because an issue about `dlopen'. To be precise, and from my understanding, the culprit is these lines: https://github.com/Kozea/cairocffi/blob/v1.0.2/cairocffi/__init__.py#L30-L31 In other word, ctypes.util.find_library('cairo') returns the expected 'libcairo.so.2'. But then it is not recognized by their `ffi.dlopen`. And if the full path is provided then it works, e.g., ffi.dlopen('/gnu/store/13i02w6r4awyb5d4n8plk8m0idvryib0-cairo-1.14.12/lib/libcairo.so.2') <Lib object for '/gnu/store/13i02w6r4awyb5d4n8plk8m0idvryib0-cairo-1.14.12/lib/libcairo.so.2'> There is an old "similar" issue on the bug Nix tracker #7307 [2], asking if `ctypes.util.find_library` should return full path (so apply somehow a patch) or add another env variable. I do not know what is the status now. [2] https://github.com/NixOS/nixpkgs/issues/7307 My questions is: is there a fix for this kind of issue ? I guess, it should happen with Python packages. If yes, what is the trick ? If no, what should be the trick ? What do you think ? Thank you for any pointer and/or comments. All the best, simon
