Python 3.x 导入错误：无法导入名称'；时间差'；从'；熊猫； 我正在尝试用python 3.7在spyder中导入熊猫

我尝试使用conda安装-f pandas重新安装pandas 创造不同的环境

作为pd进口熊猫

回溯（最近一次呼叫最后一次）：

文件“”，第1行，在
作为pd进口熊猫
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\\uuuuu init\uuuuuuuu.py”，第42行，在
从pandas.core.api导入*
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\core\api.py”，第10行，在
从pandas.core.groupby.groupby导入石斑鱼
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\core\groupby\\uuuu init\uuuu.py”，第2行，在
从pandas.core.groupby.groupby导入(
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\core\groupby\groupby.py”，第49行，在
从pandas.core.frame导入数据帧
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\core\frame.py”，第66行，在
从pandas.core.generic import NDFrame中，\u共享\u文档
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\core\generic.py”，第43行，在
从pandas.core.internals导入BlockManager
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\core\internals\\uuuu init\uuuu.py”，第2行，在
from.blocks导入（#noqa:F401
文件“C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\core\internals\blocks.py”，第11行，在
来自pandas._libs.tslibs导入的时间增量、转换为_null_datetimelike
ImportError:无法从“pandas.\u libs.tslibs”导入名称“Timedelta”
（C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\\u libs\tslibs\\uu init\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

ImportError:无法从“pandas.\u libs.tslibs”（C:\Users\mrpaw\Anaconda3\lib\site packages\pandas\tslibs\uuuuu init\uuuuu.py）导入名称“Timedelta”）

  File "<ipython-input-7-7dd3504c366f>", line 1, in <module>
    import pandas as pd

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\__init__.py", line 42, in <module>
    from pandas.core.api import *

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\core\api.py", line 10, in <module>
    from pandas.core.groupby.groupby import Grouper

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\core\groupby\__init__.py", line 2, in <module>
    from pandas.core.groupby.groupby import (

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\core\groupby\groupby.py", line 49, in <module>
    from pandas.core.frame import DataFrame

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\core\frame.py", line 66, in <module>
    from pandas.core.generic import NDFrame, _shared_docs

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\core\generic.py", line 43, in <module>
    from pandas.core.internals import BlockManager

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\core\internals\__init__.py", line 2, in <module>
    from .blocks import (  # noqa:F401

  File "C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\core\internals\blocks.py", line 11, in <module>
    from pandas._libs.tslibs import Timedelta, conversion, is_null_datetimelike

ImportError: cannot import name 'Timedelta' from 'pandas._libs.tslibs' 
(C:\Users\mrpaw\Anaconda3\lib\site-packages\pandas\_libs\tslibs\__init__.py)