sysconfig.py 文件源码

def _getuserbase():
    env_base = os.environ.get("IRONPYTHONUSERBASE", None)
    def joinuser(*args):
        return os.path.expanduser(os.path.join(*args))

    # what about 'os2emx', 'riscos' ?
    if os.name == "nt":
        base = os.environ.get("APPDATA") or "~"
        return env_base if env_base else joinuser(base, "Python")

    if sys.platform == "darwin":
        framework = get_config_var("PYTHONFRAMEWORK")
        if framework:
            return joinuser("~", "Library", framework, "%d.%d"%(
                sys.version_info[:2]))

    return env_base if env_base else joinuser("~", ".local")