Get Column Names of Pandas DataFrame - Examples

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.

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Examples

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 column names
cols = df.columns 

# Print the column names
print(cols)

Output

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

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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 column names
cols = df.columns 

# Print the column names
for i in range(len(cols)):
	print(cols[i])

Output

name
physics
chemistry
algebra

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3. Print column names using For loop

You can use a For loop to iterate over the column names 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 column names
cols = df.columns 

# Print the column names using For loop
for column in cols:
	print(column)

Output

name
physics
chemistry
algebra

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Summary

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