In this article, we are going to know how to rename a PySpark Dataframe column by index using Python. we can rename columns by index using Dataframe.withColumnRenamed() and Dataframe.columns[] methods. with the help of Dataframe.columns[] we get the name of the column on the particular index and then we replace this name with another name using the withColumnRenamed() method.
Example 1: The following program is to rename a column by its index.
# importing required module
import pyspark
from pyspark.sql import SparkSession
# creating sparksession and giving
spark = SparkSession.builder.appName('sparkdf').getOrCreate()
# demo data of college students
data = [["Mukul", 23, "BBA"],
["Robin", 21, "BCA"],
["Rohit", 24, "MBA"],
["Suraj", 25, "MBA"],
["Krish", 22, "BCA"]]
# giving column names of dataframe
columns = ["Name", "Age", "Course"]
# creating a dataframe
dataframe = spark.createDataFrame(data, columns)
# Rename dataframe
df = dataframe.withColumnRenamed(dataframe.columns[0],
"Student Name")
# Original dataframe
print("Original Dataframe")
dataframe.show()
# Dataframe after rename column
print("Dataframe after rename 0 index column")
df.show()
Output:

Example 2: The following program is to rename multiple columns by these indexes.
# importing module
import pyspark
# importing sparksession from
# pyspark.sql module
from pyspark.sql import SparkSession
# creating sparksession and giving
# an app name
spark = SparkSession.builder.appName('sparkdf').getOrCreate()
# list of students data
data = [[123, "Sagar", "Rajveer", 22, "BBA"],
[124, "Rajeev", "Mukesh", 23, "BBA"],
[125, "Harish", "Parveen", 25, "BBA"],
[126, "Gagan", "Rohit", 24, "BBA"],
[127, "Rakesh", "Mayank", 25, "BBA"],
[128, "Gnanesh", "Dleep", 26, "BBA"]]
# specify column names
columns = ['ID', 'Name', 'Father Name',
'Age', "Course", ]
# creating a dataframe from the lists of data
dataframe = spark.createDataFrame(data, columns)
# display original dataframe
print('Actual data in dataframe')
dataframe.show()
# Rename column
df = dataframe.withColumnRenamed(dataframe.columns[1],
"Student Name").withColumnRenamed(
dataframe.columns[3], "Student Age")
# display dataframe after rename column
print('After rename 1 and 3 index column')
df.show()
Output:
