Python通过rpy2调用R代码出错

问题遇到的现象和发生背景

Python调用R代码出错

用代码块功能插入代码，请勿粘贴截图
import rpy2.robjects as robjects
robjects.r['pi']
运行结果及报错内容

Traceback (most recent call last):

File "", line 1, in
robjects.r['pi']

File "D:\Python\Anaconda3\lib\site-packages\rpy2\robjects_init_.py", line 440, in getitem
res = conversion.get_conversion().rpy2py(res)

File "D:\Python\Anaconda3\lib\functools.py", line 840, in wrapper
return dispatch(args[0].class)(*args, **kw)

File "D:\Python\Anaconda3\lib\site-packages\rpy2\robjects\conversion.py", line 254, in _rpy2py
str(type(obj))

NotImplementedError: Conversion 'rpy2py' not defined for objects of type '<class 'rpy2.rinterface.FloatSexpVector'>'

我的解答思路和尝试过的方法

没找到和我有相似问题的人，求解

我想要达到的结果