packages.py 文件源码

def pip_create_virtualenv(path=None):
    """Create an isolated Python environment."""
    apt_install('python-virtualenv')

    if path:
        venv_path = path
    else:
        venv_path = os.path.join(charm_dir(), 'venv')

    if not os.path.exists(venv_path):
        subprocess.check_call(['virtualenv', venv_path])