fix(deps): fix deps import error

Author: jeertmans

manim_slides/slide.py

@@ -4,9 +4,14 @@
 import shutil
 import subprocess
 
-from manim import Scene, ThreeDScene, config, logger
 from tqdm import tqdm
 
+try:
+    from .manim import Scene, ThreeDScene, config, logger
+except ImportError
+    Scene = ThreeDScene = config = logger = None
+    # TODO: manage both manim and manimgl
+
 try:  # For manim<v0.16.0.post0
     from manim.constants import FFMPEG_BIN as ffmpeg_executable
 except ImportError:

setup.py

@@ -29,7 +29,6 @@
     install_requires=[
         "click>=8.0",
         "click-default-group>=1.2",
-        "manim",
         "numpy>=1.19.3",
         "pydantic>=1.9.1",
         "opencv-python>=4.6",