fix(lib): properly import manimlib and fix tests (#550)

CHANGELOG.md

@@ -30,6 +30,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   [@casperalgera](https://github.com/casperalgera) [#556](https://github.com/jeertmans/manim-slides/pull/556)
 - Added example in the school work section of the gallery.
   [@amstrdm](https://github.com/amstrdm) [#557](https://github.com/jeertmans/manim-slides/pull/557)
+- Fixed some tests that were failing.
+  [#550](https://github.com/jeertmans/manim-slides/pull/550)
+- Pinned `setuptools<81` for `manimgl` extra, as `setuptools>=81`
+  dropped support for its API.
+  [#550](https://github.com/jeertmans/manim-slides/pull/550)
+
+(unreleased-fixed)=
+### Fixed
+
+- Fixed potential import issue of ManimGL, importing `manimlib` will parse `sys.argv`
+  to initialize the config, which can lead to surprising behavior when using the library with
+  different command line arguments that are not meant to be used by ManimGL.
+  [#550](https://github.com/jeertmans/manim-slides/pull/550)
 
 (v5.5.1)=
 ## [v5.5.1](https://github.com/jeertmans/manim-slides/compare/v5.5.0...v5.5.1)

manim_slides/checkhealth.py

@@ -20,8 +20,13 @@ def checkhealth() -> None:
         click.secho("\tmanim not found", bold=True)
 
     try:
+        # Manimlib parses sys.argv on import, so we clear it temporarily.
+        old_argv = sys.argv
+        sys.argv = [__file__]
         from manimlib import __version__ as manimlib_version
 
+        sys.argv = old_argv
+
         click.echo(f"\tmanimgl (version: {manimlib_version})")
     except ImportError:
         click.secho("\tmanimgl not found", bold=True)

manim_slides/slide/animation.py

@@ -22,8 +22,17 @@ if MANIM:
     from manim import LEFT, AnimationGroup, FadeIn, FadeOut
     from manim.mobject.mobject import Mobject
 else:
+    import sys
+
+    # Manimlib parses sys.argv on import, so we clear it temporarily.
+    old_argv = sys.argv
+    sys.argv = [__file__]
     from manimlib import LEFT, AnimationGroup, FadeIn, FadeOut
 
+    sys.argv = old_argv
+
+    del sys
+
     Mobject = Any
 
 

manim_slides/slide/manimlib.py

@@ -1,9 +1,15 @@
+import sys
 from pathlib import Path
 from typing import Any, ClassVar, Optional
 
-from manimlib import Scene, ThreeDCamera
+# Manimlib parses sys.argv on import, so we clear it temporarily.
+old_argv = sys.argv
+sys.argv = [__file__]
+from manimlib import Scene, ThreeDCamera  # noqa: E402
 
-from .base import BaseSlide
+sys.argv = old_argv
+
+from .base import BaseSlide  # noqa: E402
 
 
 class Slide(BaseSlide, Scene):  # type: ignore[misc]

pyproject.toml

@@ -26,7 +26,7 @@ docs = [
 ]
 tests = [
   "importlib-metadata>=8.6.1;python_version<'3.10'",
-  "manim-slides[full,manimgl,pyqt6,pyside6,sphinx-directive]",
+  "manim-slides[full,manim,manimgl,pyqt6,pyside6,sphinx-directive]",
   "pytest>=7.4.0",
   "pytest-cov>=4.1.0",
   "pytest-env>=0.8.2",
@@ -80,7 +80,7 @@ full = [
 ]
 magic = ["manim-slides[manim]", "ipython>=8.12.2"]
 manim = ["manim>=0.19"]
-manimgl = ["manimgl>=1.7.2"]
+manimgl = ["manimgl>=1.7.2", "setuptools<81"]
 pyqt6 = ["pyqt6>=6.7.0"]
 pyqt6-full = ["manim-slides[full,pyqt6]"]
 pyside6 = ["pyside6>=6.6.1,!=6.8.1.1"]
@@ -205,13 +205,13 @@ filterwarnings = [
   'ignore::DeprecationWarning:pkg_resources.*:',
   'ignore:invalid escape sequence.*:DeprecationWarning',
   'ignore:invalid escape sequence.*:SyntaxWarning',
+  'ignore:urllib3 v2 only supports OpenSSL.*:urllib3.exceptions.NotOpenSSLWarning',
 ]
 
 [tool.ruff]
 extend-exclude = ["manim_slides/resources.py"]
 extend-include = ["*.ipynb"]
 line-length = 88
-target-version = "py39"
 
 [tool.ruff.lint]
 extend-ignore = [

tests/test_checkhealth.py

@@ -20,7 +20,7 @@ PYSIDE6_NOT_INSTALLED = importlib.util.find_spec("PySide6") is None
     "names",
     list(
         chain.from_iterable(
-            combinations(("manim", "manimlib", "PyQt6", "PySide6"), r=r)
+            combinations(("manim", "manimlib", "pyqt6", "pyside6"), r=r)
             for r in range(0, 5)
         )
     ),

tests/test_main.py

@@ -67,7 +67,7 @@ def test_convert(slides_folder: Path, extension: str) -> None:
 
 @pytest.mark.parametrize(("extension",), [("html",)])
 def test_convert_data_uri_deprecated(slides_folder: Path, extension: str) -> None:
-    runner = CliRunner(mix_stderr=False)
+    runner = CliRunner()
 
     with runner.isolated_filesystem():
         with warnings.catch_warnings(record=True) as w:

tests/test_manim.py

@@ -27,7 +27,11 @@ def assert_import(
 
 @skip_if_py39
 def test_force_api() -> None:
+    # Manimlib parses sys.argv on import, so we clear it temporarily.
+    old_argv = sys.argv
+    sys.argv = [__file__]
     pytest.importorskip("manimlib")
+    sys.argv = old_argv
     import manim  # noqa: F401
 
     if "manimlib" in sys.modules:
@@ -62,9 +66,12 @@ def test_invalid_api() -> None:
 @skip_if_py39
 @pytest.mark.filterwarnings("ignore:assert_import")
 def test_manim_and_manimgl_imported() -> None:
+    # Manimlib parses sys.argv on import, so we clear it temporarily.
+    old_argv = sys.argv
+    sys.argv = [__file__]
     pytest.importorskip("manimlib")
+    sys.argv = old_argv
     import manim  # noqa: F401
-    import manimlib  # noqa: F401
 
     assert_import(
         api_name="manim",
@@ -88,8 +95,11 @@ def test_manim_imported() -> None:
 
 @skip_if_py39
 def test_manimgl_imported() -> None:
+    # Manimlib parses sys.argv on import, so we clear it temporarily.
+    old_argv = sys.argv
+    sys.argv = [__file__]
     pytest.importorskip("manimlib")
-    import manimlib  # noqa: F401
+    sys.argv = old_argv
 
     if "manim" in sys.modules:
         del sys.modules["manim"]

tests/test_present.py

@@ -41,7 +41,7 @@ def test_present_unexisting_slide(args: tuple[str, ...]) -> None:
         results = runner.invoke(present, ["UnexistingSlide", *args])
 
         assert results.exit_code != 0
-        assert "UnexistingSlide.json does not exist" in results.stdout
+        assert "UnexistingSlide.json does not exist" in results.output
 
 
 def test_present_full_screen(args: tuple[str, ...]) -> None:

tests/test_slide.py

@@ -250,9 +250,13 @@ def init_slide(cls: SlideType) -> Slide:
     if issubclass(cls, CESlide):
         return cls()
     elif issubclass(cls, GLSlide):
+        # Manimlib parses sys.argv on import, so we clear it temporarily.
+        old_argv = sys.argv
+        sys.argv = [__file__]
         from manimlib.config import parse_cli
 
         _args = parse_cli()
+        sys.argv = old_argv
         return cls()
 
     raise ValueError(f"Unsupported class {cls}")