DeleteCatalyst integration for migration to optuna-integration

.github/workflows/tests-integration.yml

@@ -77,7 +77,6 @@ jobs:
         if [ ${{ matrix.python-version }} == 3.11 ]; then
           pytest tests -m "integration" \
             --ignore tests/integration_tests/test_botorch.py \
-            --ignore tests/integration_tests/test_catalyst.py \
             --ignore tests/integration_tests/test_fastaiv2.py \
             --ignore tests/integration_tests/test_lightgbm.py \
             --ignore tests/integration_tests/test_mxnet.py \
@@ -103,7 +102,6 @@ jobs:
         if [ ${{ matrix.python-version }} == 3.11 ]; then
           pytest tests -m "integration and not slow" \
             --ignore tests/integration_tests/test_botorch.py \
-            --ignore tests/integration_tests/test_catalyst.py \
             --ignore tests/integration_tests/test_fastaiv2.py \
             --ignore tests/integration_tests/test_lightgbm.py \
             --ignore tests/integration_tests/test_mxnet.py \

docs/source/reference/integration.rst

@@ -26,15 +26,6 @@ BoTorch
    optuna.integration.botorch.qnehvi_candidates_func
    optuna.integration.botorch.qparego_candidates_func
 
-Catalyst
---------
-
-.. autosummary::
-   :toctree: generated/
-   :nosignatures:
-
-   optuna.integration.CatalystPruningCallback
-
 CatBoost
 --------
 

optuna/integration/catalyst.py

@@ -1,30 +1,4 @@
-from packaging import version
+from optuna_integration.catalyst import CatalystPruningCallback
 
-from optuna._deprecated import deprecated_class
-from optuna._imports import try_import
 
-
-with try_import() as _imports:
-    import catalyst
-
-    if version.parse(catalyst.__version__) < version.parse("21.3"):
-        raise ImportError(
-            f"You don't have Catalyst>=21.3 installed! Catalyst version: {catalyst.__version__}"
-        )
-    from catalyst.dl import OptunaPruningCallback
-
-if not _imports.is_successful():
-    OptunaPruningCallback = object  # NOQA
-
-
-@deprecated_class("2.7.0", "4.0.0")
-class CatalystPruningCallback(OptunaPruningCallback):
-    """Catalyst callback to prune unpromising trials.
-
-    This class is an alias to Catalyst's
-    `OptunaPruningCallback <https://catalyst-team.github.io/catalyst/api/callbacks.html?highlight=optuna#catalyst.callbacks.optuna.OptunaPruningCallback>`_.
-
-    See the Catalyst's documentation for the detailed description.
-    """  # NOQA
-
-    pass
+__all__ = ["CatalystPruningCallback"]

pyproject.toml

@@ -87,7 +87,6 @@ document = [
 ]
 integration = [
     "botorch>=0.4.0; python_version<'3.11'",
-    "catalyst>=21.3; python_version<'3.11'",
     "catboost>=0.26; sys_platform!='darwin'",
     "catboost>=0.26,<1.2; sys_platform=='darwin'",
     "cma",