Add And Delete Columns From Dataframe In Pandas

import numpy as np
import pandas as pd


df = pd.DataFrame(np.random.randn(5,4),['A', 'B', 'C', 'D', 'E'],['W', 'X', 'Y', 'Z'])

print("DataFrame before adding a new column\n")
print(df)

# Adding a new column
df['New Column'] = df['W'] + df['X']

print("\nDataFrame after adding a new column\n")
print(df)

import numpy as np
import pandas as pd


df = pd.DataFrame(np.random.randn(5,4),['A', 'B', 'C', 'D', 'E'],['W', 'X', 'Y', 'Z'])



print("\nDataFrame before deleting new column\n")
print(df)

df = df.drop('X', axis=1)

print("\nDataFrame after deleting new column\n")
print(df)

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