virtualenv.py 文件源码

def fix_local_scheme(home_dir):
    """
    Platforms that use the "posix_local" install scheme (like Ubuntu with
    Python 2.7) need to be given an additional "local" location, sigh.
    """
    try:
        import sysconfig
    except ImportError:
        pass
    else:
        if sysconfig._get_default_scheme() == 'posix_local':
            local_path = os.path.join(home_dir, 'local')
            if not os.path.exists(local_path):
                os.mkdir(local_path)
                for subdir_name in os.listdir(home_dir):
                    if subdir_name == 'local':
                        continue
                    os.symlink(os.path.abspath(os.path.join(home_dir, subdir_name)), \
                                                            os.path.join(local_path, subdir_name))