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Unfortunately, the old detection code doesn't guarantee that `epath` is installed: ``` [utM] In [7]: importlib.util.find_spec("etils.epath") Out[7]: ModuleSpec(name='etils.epath', loader=<_frozen_importlib_external.SourceFileLoader object at 0x73b8492a7230>, origin='/home/neil/src/cmm/.venv/lib/python3.12/site-packages/etils/epath/__init__.py', submodule_search_locations=['/home/neil/src/cmm/.venv/lib/python3.12/site-packages/etils/epath']) [utM] In [8]: import etils.epath --------------------------------------------------------------------------- ModuleNotFoundError Traceback (most recent call last) Cell In[8], line 1 ----> 1 import etils.epath ... ModuleNotFoundError: No module named 'importlib_resources' ``` This happened every time I ran jax with a clean environment.
46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
# Copyright 2022 The JAX Authors.
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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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# https://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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from typing import Protocol
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import logging
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import os
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import pathlib
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__all__ = ["Path"]
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logger = logging.getLogger(__name__)
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epath_installed: bool
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class PathProtocol(Protocol):
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"""A factory that creates a PurePath."""
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def __call__(self, *pathsegments: str | os.PathLike) -> pathlib.Path:
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...
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Path: PathProtocol
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# If etils.epath (aka etils[epath] to pip) is present, we prefer it because it
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# can read and write to, e.g., GCS buckets. Otherwise we use the builtin
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# pathlib and can only read/write to the local filesystem.
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try:
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from etils import epath # type: ignore
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except ImportError:
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logger.debug("etils.epath was not found. Using pathlib for file I/O.")
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Path = pathlib.Path
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epath_installed = False
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else:
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logger.debug("etils.epath found. Using etils.epath for file I/O.")
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# Ultimately, epath.Path implements pathlib.Path. See:
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# https://github.com/google/etils/blob/2083f3d932a88d8a135ef57112cd1f9aff5d559e/etils/epath/abstract_path.py#L47
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Path = epath.Path
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epath_installed = True
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