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Python how to geather and spread using pandas

#Import pandas module
import pandas as pd

# Define the dataframe
DF = pd.DataFrame({'y': [1,4], 'female': [2,5], 'male': [3,6]})

# Gather/melt the data frame
pd.melt(DF, id_vars='y', value_vars=['female', 'male'],var_name='gender',
value_name='value')

Source: stackoverflow.com

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