check_version.py

#!/usr/bin/env python
# -*- coding: utf8 -*-
import sys
try:
    from packaging.version import Version
except ImportError:
    from distutils.version import LooseVersion as Version
try:
    from sourcespec import __version__
except Exception:
    sys.stderr.write("Error: SourceSpec doesn't seem to be installed\n")
    sys.exit(1)

min_version = '1.8'

# Fix for old version numbers starting with 'v'
__version__ = __version__.lstrip('v')

if Version(__version__) < Version(min_version):
    sys.stderr.write(
        'Error:\n'
        '  These tests are designed for SourceSpec >= {}\n'
        '  You have version: {}\n'.format(min_version, __version__)
    )
    sys.exit(1)