Python 3 – input() function

In Python, we use the input() function to take input from the user. Whatever you enter as input, the input function converts it into a string. If you enter an integer value still input() function converts it into a string.

Example:

Python3

name = input("What is your name? ")
print("Hello, " + name + "!")

Output :

What is your name? GFG
Hello, GFG!

Python input() Syntax

Syntax: input(prompt)

Parameter:

• Prompt: (optional) The string that is written to standard output(usually screen) without newline.

Return: String object

input() in Python Examples

Taking input in Python

In this example, we are using the Python input() function which takes input from the user and prints it.

Python3

# Taking input from the user
string = input()

# Output
print(string)

Output:

geeksforgeeks

User Input in Python

In this example, we are taking input from the user with a prompt and printing it.

Python

# Taking input from the user
name = input("Enter your name")

# Output
print("Hello", name)

Output:

Enter your name:ankit rai
Hello ankit rai 

Convert User Input to a Number

In this example, we are using the Python input() function which takes input from the user in string format converting it into an integer adding 1 to the integer, and printing it.

Python3

# Taking input from the user as integer
num = int(input("Enter a number:"))
add = num + 1

# Output
print(add)

Output:

Enter a number:15
16

Take float input in Python

In this example, we are using the Python input() function which takes input from the user in string format converts it into float adds 1 to the float, and prints it.

Python3

# Taking input from the user as float

num =float(input("Enter number "))
add = num + 1

# output
print(add)

Output:

Enter number 5
6.0

Python Accept List as a input From User

In this example, we are taking input from the user in string format converting it into a list, and printing it.

Python3

# Taking input from the user as list

li =list(input("Enter number "))

# output
print(li)

Output:

Enter number 12345
['1', '2', '3', '4', '5']

Take User Input for Tuples and Sets

In this example, we are taking input from the user in string format converting it into a tuple, and printing it.

Python3

# Taking input from the user as tuple

num =tuple(input("Enter number "))

# output
print(num)

Output:

Enter number 123
('1', '2', '3')

Using input with a dictionary comprehension

In this example, we are taking the words separated by space and we make a dictionary of the word as key with their length as value.

Python3

words_str = input("Enter a list of words, separated by spaces: ")
words = {word: len(word) for word in words_str.split()}
print(words)

Output :

Enter a list of words, separated by spaces: geeks for geeks
{'geeks': 5, 'for': 3}

Start your Python 3 journey with our extensive guide: Python 3 Tutorial