Answers for "how to extract data with column values in python"

pandas dataframe extract value

# extract value from `n`th row, `m`th column
df.iat[n,m]

# extract value from last row, 4th column
df.iat[-1,3]

# extract value from last row, last column
df.iat[-1,-1]

extract one column from dataframe python

import pandas as pd

input_file = "C:\\....\\consumer_complaints.csv"
dataset = pd.read_csv(input_file)
df = pd.DataFrame(dataset)
cols = [1,2,3,4]
df = df[df.columns[cols]]