Creating Text Mobject retrieves TypeError (manimpango.text2svg has incorrect argument typing)

[mkashirin]

Hello.
I'm having a trouble rendering a Text Mobject. An attempt of creating a Text Mobject retrieves TypeError because manimpango.text2svg function has incorrect argument typing (size: int, line_spacing: int istead of both being float). Traceback is represented on screenshots attached.
The problem is I just don't know how to save any type of changes made to them .pyx files.

Steps to reproduce the problem:

1. install Anaconda 3 on Windows 11 Pro;
2. install Manim with the following command conda install -c conda-forge manim on Conda's Python 3.11.6;
3. try to run the code from the Screenshot 1 or render the text typing manim -pqh scene.py TextAnimation.

Screenshots:
screenshot 1: ;
screenshot 2: .

Thanks for your response.

[uwezi]

don't just use screenshots - especially not for your code!

class TextAnimation(Scene):
    def construct(self):
        text = Text("Book Antiqua", font="Book Antiqua")
        self.play(Write(text))
        self.play(Unwrite(text))

[uwezi]

Ok, I finally updated my Python to a recent Python 3.11 (not Anaconda, but plain Windows-version of Python from python.org) and I still cannot reproduce your problem.

[mkashirin]

Basically, I can try installing Manim via pip into pure Python venv. Not sure it'll help, but still...

[mkashirin]

So, I installed it manually into the pure Python virtual environment, created via PyCharm, and everything works just perfect. It seems like the problem with either VSCode or Conda itself.
Thanks for your response.

[naveen521kk]

Cython 3 started to enforce type-checking more strictly which caused this issue. On normal Python, the wheel from PyPI would be installed which should be built with Cython 0.x. Conda seems to have built this project with Cython 3.

#105 seems to have fixed most of the issues, I'll do a bit more testing and release a new version.

I'll keep this open for a bit till I release a new version.

[alexandross]

I am using conda, I updated today both conda and the manimCE environment inside conda, and I started to get this error. It was working fine previously. Any assistance would be greatly appreciated. Thank you!

[behackl]

I am using conda, I updated today both conda and the manimCE environment inside conda, and I started to get this error. It was working fine previously. Any assistance would be greatly appreciated. Thank you!

Wait for the upcoming release, or just try and run pip install manimpango --force.

[alexandross]

Thank you! I just installed manim in my "base" environment (outside of the "manimCE" conda environment) using "pip3 install manim" and it works. I will keep updating the manimCE conda environment, hopefully a future update will fix it.

[smadikanti]

Issue still persists

[uwezi]

@smadikanti

Issue still persists

well, the issue has been fixed as reported by others.

Which version of Manim and which version of Python are you using on what operating system?
And did you follow the advice above to run pip install manimpango --force?