How to Get Column Names of Pandas DataFrame?

Get DataFrame Column Names

To get the column names of DataFrame, use DataFrame.columns property.

The syntax to use columns property of a DataFrame is

DataFrame.columns

The columns property returns an object of type Index. We could access individual names using any looping technique in Python.

Example 1: Print DataFrame Column Names

In this example, we get the dataframe column names and print them.

Python Program

import pandas as pd

#initialize a dataframe
df = pd.DataFrame(
	[['Amol', 72, 67, 91],
	['Lini', 78, 69, 87],
	['Kiku', 74, 56, 88],
	['Ajit', 54, 76, 78]],
	columns=['name', 'physics', 'chemistry', 'algebra'])	

#get the dataframe columns
cols = df.columns 

#print the columns
print(cols)

Output

Index(['name', 'physics', 'chemistry', 'algebra'], dtype='object')

Example 2: Access Individual Column Names using Index

You can access individual column names using the index.

Python Program

import pandas as pd

#initialize a dataframe
df = pd.DataFrame(
	[['Amol', 72, 67, 91],
	['Lini', 78, 69, 87],
	['Kiku', 74, 56, 88],
	['Ajit', 54, 76, 78]],
	columns=['name', 'physics', 'chemistry', 'algebra'])	

#get the dataframe columns
cols = df.columns 

#print the columns
for i in range(len(cols)):
	print(cols[i])

Output

name
physics
chemistry
algebra

Example 3: Print Columns using For Loop

You can use for loop to iterate over the columns of dataframe.

Python Program

import pandas as pd

#initialize a dataframe
df = pd.DataFrame(
	[['Amol', 72, 67, 91],
	['Lini', 78, 69, 87],
	['Kiku', 74, 56, 88],
	['Ajit', 54, 76, 78]],
	columns=['name', 'physics', 'chemistry', 'algebra'])	

#get the dataframe columns
cols = df.columns 

#print the columns
for column in cols:
	print(column)

Output

name
physics
chemistry
algebra

Summary

In this Pandas Tutorial, we extracted the column names from DataFrame using DataFrame.column property.