How does python pandas implement functions like left or right in excel?

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With regard to this problem, I think it is most convenient to apply slicing after calling the str function.

Examples are as follows

> import pandas as pd

> import numpy as np

> df=pd.read_excel (ringing DGV >

> df

Name score

0 bob_B 45

1 jiken_A 67

# get the first three letters of the name column

> df ['nam2'] = df.name.str [: 3]

> df

Name score nam2

0 bob_B 45 bob

1 jiken_A 67 jik

# get the last three letters of the name column

> df ['nam1'] = df.name.str [- 3:]

> df

Name score nam1

0 bob_B 45 b_B

1 jiken_A 67 n_A

In fact, it is easy to solve as long as you have mastered the str function and are familiar with slicing.

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