45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
# Copyright 2022-2024 MetaOPT Team. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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"""Integration with third-party libraries."""
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import sys
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from typing import Any
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current_module = sys.modules[__name__]
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SUBMODULES = frozenset({'jax', 'numpy', 'torch'})
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# pylint: disable-next=too-few-public-methods
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class _LazyModule(type(current_module)): # type: ignore[misc]
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def __getattribute__(self, name: str) -> Any: # noqa: N804
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try:
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return super().__getattribute__(name)
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except AttributeError:
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if name in SUBMODULES:
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import importlib # pylint: disable=import-outside-toplevel
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submodule = importlib.import_module(f'{__name__}.{name}')
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setattr(self, name, submodule)
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return submodule
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raise
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current_module.__class__ = _LazyModule
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del sys, Any, current_module, _LazyModule
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