| import os |
| import platform |
| import sys |
| from itertools import chain |
| |
| |
| IS_WINDOWS = (platform.system() == 'Windows') |
| IS_DARWIN = (platform.system() == 'Darwin') |
| IS_LINUX = (platform.system() == 'Linux') |
| |
| |
| IS_CONDA = 'conda' in sys.version or 'Continuum' in sys.version or any([x.startswith('CONDA') for x in os.environ]) |
| CONDA_DIR = os.path.join(os.path.dirname(sys.executable), '..') |
| |
| |
| def check_env_flag(name, default=''): |
| return os.getenv(name, default).upper() in ['ON', '1', 'YES', 'TRUE', 'Y'] |
| |
| |
| def check_negative_env_flag(name, default=''): |
| return os.getenv(name, default).upper() in ['OFF', '0', 'NO', 'FALSE', 'N'] |
| |
| |
| def gather_paths(env_vars): |
| return list(chain(*(os.getenv(v, '').split(':') for v in env_vars))) |
