Package request: manim

[matthew-piziak]

Manim - Mathematical Animation Engine

Manim is an animation engine for explanatory math videos. It's used to create precise animations programmatically, as seen in the videos at 3Blue1Brown.

Upstream repository: https://github.com/3b1b/manim

This is a state-of-the-art mathematics animation utility installed with Python.

[JohnAZoidberg]

It's not trivial... I'm trying. They don't have a setup.py and it tries to write to the installation location, which is not possible in the nix-store.

In the meantime you can get a nix-shell with the dependencies like this: nix-shell -p cairo sox ffmpeg xdg_utils "python3.withPackages(ps: with ps; [ colour opencv numpy pillow progressbar scipy tqdm pycairo pydub ])"

[JohnAZoidberg]

Got it! https://github.com/JohnAZoidberg/nixpkgs/commit/17463b9c40411cbc001f52205998a688607ea0b9 I'll wait for feedback from upstream until I proceed with a PR here. I'm not sure if I packaged all python scripts.

[ajs124]

What happened to this after the PR was merged upstream?

[JohnAZoidberg]

I was going to write some documentation on how the usage is different than upstream, as they expect it to be run from a git clone. I'll try it out again and make a PR to nixpkgs ASAP.

[sorokin]

I tried using this package and got this error message:

sh: latex: команда не найдена
Traceback (most recent call last):
  File "/nix/store/z0y0vajvszj398n2i9vz6njzd73fim2i-manim-0.1.10/lib/python3.7/site-packages/manimlib/extract_scene.py", line 150, in main
    scene = SceneClass(**scene_kwargs)
  File "/nix/store/z0y0vajvszj398n2i9vz6njzd73fim2i-manim-0.1.10/lib/python3.7/site-packages/manimlib/scene/scene.py", line 52, in __init__
    self.construct()
  File "1.py", line 20, in construct
    title = TextMobject("This is some \\LaTeX")
  File "/nix/store/z0y0vajvszj398n2i9vz6njzd73fim2i-manim-0.1.10/lib/python3.7/site-packages/manimlib/mobject/svg/tex_mobject.py", line 144, in __init__
    self, self.arg_separator.join(tex_strings), **kwargs
  File "/nix/store/z0y0vajvszj398n2i9vz6njzd73fim2i-manim-0.1.10/lib/python3.7/site-packages/manimlib/mobject/svg/tex_mobject.py", line 44, in __init__
    self.template_tex_file_body
  File "/nix/store/z0y0vajvszj398n2i9vz6njzd73fim2i-manim-0.1.10/lib/python3.7/site-packages/manimlib/utils/tex_file_writing.py", line 19, in tex_to_svg_file
    dvi_file = tex_to_dvi(tex_file)
  File "/nix/store/z0y0vajvszj398n2i9vz6njzd73fim2i-manim-0.1.10/lib/python3.7/site-packages/manimlib/utils/tex_file_writing.py", line 67, in tex_to_dvi
    "See log output above or the log file: %s" % log_file)
Exception: Latex error converting to dvi. See log output above or the log file: Tex/081b5f87a6472151.log

Apparently manim tries to execute command latex without specifying absolute path to /nix/store/.../bin/latex.

Update: As I understand now texlive.combined.scheme-full is omitted from propagatedBuildInputs intentionally to reduce the size of the dependencies. Adding it fixed the problem. Do you think manim has many usages without tex? My understanding is that users of manim will have tex installed anyway.

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