我是使用 Spyder 的 Python 新手。我编写了以下代码：
import os
import numpy as np
os.environ["CDF_LIB"] = "D:\Anaconda\Lib"
from spacepy import pycdf
cdf = pycdf.CDF('Sample.cdf')
print(cdf) # Print the titles of the CDF file
Diff_en=cdf['diff'][:]
由于某种原因，我不断收到以下错误，但我不确定为什么（我不知道 bool 是什么）。任何帮助表示赞赏：
Diff_en=cdf['diff'][:]
D:\Anaconda\lib\site-packages\spacepy\pycdf\__init__.py:3957: DeprecationWarning: `np.bool` is a deprecated alias for the builtin `bool`. To silence this warning, use `bool` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.bool_` here.
Deprecated in NumPy 1.20; for …