Support imports of submodules from top level

src/scwidgets/__init__.py

@@ -2,5 +2,46 @@
 __authors__ = "the scicode-widgets developer team"
 
 from ._css_style import CssStyle, get_css_style
+from .check import *  # noqa: F403
+from .code import *  # noqa: F403
+from .cue import *  # noqa: F403
+from .exercise import *  # noqa: F403
 
-__all__ = ["CssStyle", "get_css_style"]
+__all__ = [  # noqa: F405
+    # css_style
+    "CssStyle",
+    "get_css_style",
+    # cue
+    "CueWidget",
+    "CheckCueBox",
+    "CueBox",
+    "SaveCueBox",
+    "UpdateCueBox",
+    "ResetCueButton",
+    "SaveResetCueButton",
+    "CheckResetCueButton",
+    "UpdateResetCueButton",
+    "CueOutput",
+    "CueObject",
+    "CueFigure",
+    # code
+    "CodeInput",
+    "ParameterPanel",
+    # check
+    "Check",
+    "CheckResult",
+    "AssertResult",
+    "CheckRegistry",
+    "CheckableWidget",
+    "assert_equal",
+    "assert_shape",
+    "assert_numpy_allclose",
+    "assert_type",
+    "assert_numpy_floating_sub_dtype",
+    "assert_numpy_sub_dtype",
+    # exercise
+    "CodeExercise",
+    "TextExercise",
+    "ExerciseWidget",
+    "ExerciseRegistry",
+]

tests/__init__.py

@@ -0,0 +1,22 @@
+from scwidgets import (  # noqa: F401
+    AssertResult,
+    Check,
+    CheckableWidget,
+    CheckRegistry,
+    CheckResult,
+    CodeExercise,
+    CodeInput,
+    CueFigure,
+    CueObject,
+    CueOutput,
+    ExerciseRegistry,
+    ExerciseWidget,
+    ParameterPanel,
+    TextExercise,
+    assert_equal,
+    assert_numpy_allclose,
+    assert_numpy_floating_sub_dtype,
+    assert_numpy_sub_dtype,
+    assert_shape,
+    assert_type,
+)