| # Copyright 2022-2025 MetaOPT Team. All Rights Reserved. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| # ============================================================================== | |
| """Integrations with third-party libraries.""" | |
| from __future__ import annotations | |
| from typing import TYPE_CHECKING | |
| if TYPE_CHECKING: | |
| from types import ModuleType | |
| from optree.integrations import jax, numpy, torch | |
| SUBMODULES: frozenset[str] = frozenset({'jax', 'numpy', 'torch'}) | |
| def __dir__() -> list[str]: | |
| return [*sorted(SUBMODULES), 'SUBMODULES'] | |
| def __getattr__(name: str, /) -> ModuleType: | |
| if name in SUBMODULES: | |
| import importlib # pylint: disable=import-outside-toplevel | |
| import sys # pylint: disable=import-outside-toplevel | |
| module = sys.modules[__name__] | |
| submodule = importlib.import_module(f'{__name__}.{name}') # pragma: no cover | |
| setattr(module, name, submodule) # pragma: no cover | |
| return submodule # pragma: no cover | |
| raise AttributeError(f'module {__name__!r} has no attribute {name!r}') | |
| del TYPE_CHECKING | |