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#!/usr/bin/env python
# Copyright 2024 The HuggingFace Inc. 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.
import importlib
import logging
def is_package_available(pkg_name: str, return_version: bool = False) -> tuple[bool, str] | bool:
"""Copied from https://github.com/huggingface/transformers/blob/main/src/transformers/utils/import_utils.py
Check if the package spec exists and grab its version to avoid importing a local directory.
**Note:** this doesn't work for all packages.
"""
package_exists = importlib.util.find_spec(pkg_name) is not None
package_version = "N/A"
if package_exists:
try:
# Primary method to get the package version
package_version = importlib.metadata.version(pkg_name)
except importlib.metadata.PackageNotFoundError:
# Fallback method: Only for "torch" and versions containing "dev"
if pkg_name == "torch":
try:
package = importlib.import_module(pkg_name)
temp_version = getattr(package, "__version__", "N/A")
# Check if the version contains "dev"
if "dev" in temp_version:
package_version = temp_version
package_exists = True
else:
package_exists = False
except ImportError:
# If the package can't be imported, it's not available
package_exists = False
else:
# For packages other than "torch", don't attempt the fallback and set as not available
package_exists = False
logging.debug(f"Detected {pkg_name} version: {package_version}")
if return_version:
return package_exists, package_version
else:
return package_exists
_torch_available, _torch_version = is_package_available("torch", return_version=True)
_gym_xarm_available = is_package_available("gym_xarm")
_gym_aloha_available = is_package_available("gym_aloha")
_gym_pusht_available = is_package_available("gym_pusht")
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