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# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# 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 argparse
import importlib
import os
import sys
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument(
"--training",
action="store_true",
help="Whether to check training-specific dependencies",
)
return parser.parse_args()
def check_packages(package_list):
global all_success
for package in package_list:
try:
_ = importlib.import_module(package)
except Exception as e:
print(f"\033[91m[ERROR]\033[0m Package not successfully imported: \033[93m{package}\033[0m")
all_success = False
else:
print(f"\033[92m[SUCCESS]\033[0m {package} found")
args = parse_args()
if not (sys.version_info.major == 3 and sys.version_info.minor >= 10):
detected = f"{sys.version_info.major}.{sys.version_info.minor}.{sys.version_info.micro}"
print(f"\033[91m[ERROR]\033[0m Python 3.10+ is required. You have: \033[93m{detected}\033[0m")
sys.exit(1)
if "CONDA_PREFIX" not in os.environ:
print("\033[93m[WARNING]\033[0m Cosmos should be run under a conda environment.")
print("Attempting to import critical packages...")
packages = [
"torch",
"torchvision",
"diffusers",
"transformers",
"megatron.core",
"transformer_engine",
]
packages_training = [
"apex.multi_tensor_apply",
]
all_success = True
check_packages(packages)
if args.training:
check_packages(packages_training)
if all_success:
print("-----------------------------------------------------------")
print("\033[92m[SUCCESS]\033[0m Cosmos environment setup is successful!")
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