NameError: name 'Scene' is not defined #3216
Description
Description of bug / unexpected behavior
Hi, I installed manim following the community tutorial：
https://docs.manim.community/en/stable/installation/conda.html
And follow the tutorial：
https://docs.manim.community/en/stable/tutorials/quickstart.html
I successfully ran the circle project：
from manim import *
class CreateCircle(Scene):
def construct(self):
circle = Circle() # create a circle
circle.set_fill(PINK, opacity=0.5) # set the color and transparency
self.play(Create(circle)) # show the circle on screen
manim -pql scene.py CreateCircle
But when I want to run the SquareToCircle , failed.
Expected behavior
How to reproduce the issue
Code for reproducing the problem
class SquareToCircle(Scene):
def construct(self):
circle = Circle() # create a circle
circle.set_fill(PINK, opacity=0.5) # set color and transparency
square = Square() # create a square
square.rotate(PI / 4) # rotate a certain amount
self.play(Create(square)) # animate the creation of the square
self.play(Transform(square, circle)) # interpolate the square into the circle
self.play(FadeOut(square)) # fade out animation
manim -pql scene.py SquareToCircle
Logs
Terminal output
The error information is as follows:Manim Community v0.17.3
Traceback (most recent call last):
File "C:\Users\Pc\anaconda3\envs\mainm\Scripts\manim-script.py", line 9, in <module>
sys.exit(main())
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\click\core.py", line 1130, in __call__
return self.main(*args, **kwargs)
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\click\core.py", line 1055, in main
rv = self.invoke(ctx)
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\click\core.py", line 1657, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\click\core.py", line 1404, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\click\core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\manim\cli\render\commands.py", line 111, in render
for SceneClass in scene_classes_from_file(file):
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\manim\utils\module_ops.py", line 129, in scene_classes_from_file
module = get_module(file_path)
File "C:\Users\Pc\anaconda3\envs\mainm\lib\site-packages\manim\utils\module_ops.py", line 52, in get_module
spec.loader.exec_module(module)
File "<frozen importlib._bootstrap_external>", line 843, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "D:\Manim_project\scene.py", line 1, in <module>
class SquareToCircle(Scene):
NameError: name 'Scene' is not defined
System specifications
System Details
- OS (with version, e.g., Windows 10 v2004 or macOS 10.15 (Catalina)):Windows 10 (I have the same problem with inter i5 macos )
- RAM:16G
- Python version (
python/py/python3 --version):3.8 - Installed modules (provide output from
pip list): - Package Version
attrs 22.2.0
brotlipy 0.7.0
build 0.10.0
CacheControl 0.12.11
certifi 2022.12.7
cffi 1.15.1
charset-normalizer 3.1.0
cleo 2.0.1
click 8.1.3
click-default-group 1.2.2
cloup 0.13.1
colorama 0.4.6
colour 0.1.5
crashtest 0.4.1
cryptography 38.0.4
dataclasses 0.8
decorator 5.1.1
distlib 0.3.6
dulwich 0.21.3
ffmpeg 1.4
filelock 3.11.0
future 0.18.3
glcontext 2.3.7
html5lib 1.1
idna 3.4
importlib-metadata 6.4.1
importlib-resources 5.12.0
installer 0.7.0
isosurfaces 0.1.0
jaraco.classes 3.2.3
jsonschema 4.17.3
keyring 23.13.1
lockfile 0.12.2
manim 0.17.3
ManimPango 0.4.3
mapbox-earcut 1.0.1
markdown-it-py 2.2.0
mdurl 0.1.2
moderngl 5.8.2
moderngl-window 2.4.3
more-itertools 9.1.0
msgpack 1.0.5
multipledispatch 0.6.0
networkx 2.8.8
numpy 1.24.2
packaging 23.1
pexpect 4.8.0
Pillow 9.5.0
pip 23.0.1
pkginfo 1.9.6
pkgutil_resolve_name 1.3.10
platformdirs 2.6.2
poetry 1.4.2
poetry-core 1.5.2
poetry-plugin-export 1.3.0
pooch 1.7.0
ptyprocess 0.7.0
pycairo 1.23.0
pycparser 2.21
pydub 0.25.1
pyglet 2.0.5
Pygments 2.15.0
pyOpenSSL 23.1.1
pyproject_hooks 1.0.0
pyrr 0.10.3
pyrsistent 0.19.3
PySocks 1.7.1
pywin32-ctypes 0.2.0
PyYAML 6.0
rapidfuzz 2.15.0
requests 2.28.2
requests-toolbelt 0.10.1
rich 13.3.4
scipy 1.10.1
screeninfo 0.8.1
setuptools 65.6.3
shellingham 1.5.1
six 1.16.0
skia-pathops 0.7.4
srt 3.5.3
svgelements 1.9.1
tomli 2.0.1
tomlkit 0.11.7
tqdm 4.65.0
trove-classifiers 2023.3.9
typing_extensions 4.5.0
urllib3 1.26.15
virtualenv 20.16.5
watchdog 2.3.1
webencodings 0.5.1
wheel 0.38.4
win-inet-pton 1.1.0
wincertstore 0.2
zipp 3.15.0
LaTeX details
- LaTeX distribution (e.g. TeX Live 2020):
- Installed LaTeX packages:
FFMPEG
Output of ffmpeg -version:
ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
built with clang version 15.0.7
configuration: --prefix=/d/bld/ffmpeg_1674566436592/_h_env/Library --cc=clang.exe --cxx=clang++.exe --nm=llvm-nm --ar=llvm-ar --disable-doc --disable-openssl --enable-demuxer=dash --enable-hardcoded-tables --enable-libfreetype --enable-libfontconfig --enable-libopenh264 --ld=lld-link --target-os=win64 --enable-cross-compile --toolchain=msvc --host-cc=clang.exe --extra-libs=ucrt.lib --extra-libs=vcruntime.lib --extra-libs=oldnames.lib --strip=llvm-strip --disable-stripping --host-extralibs= --enable-gpl --enable-libx264 --enable-libx265 --enable-libaom --enable-libsvtav1 --enable-libxml2 --enable-pic --enable-shared --disable-static --enable-version3 --enable-zlib --enable-libopus --pkg-config=/d/bld/ffmpeg_1674566436592/_build_env/Library/bin/pkg-config
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100