import sys
import IPython

print(sys.executable)
print(sys.version)

IPython.__version__

import numpy as np
arr = np.arange(100)
arr

import pandas as pd

df = pd.DataFrame(np.random.randn(8, 3), 
                  index=pd.date_range('1/1/2000', periods=8), 
                  columns=['A', 'B', 'C'])
df

df[0:4]