Taking user input in python

Taking  user input in python

Programmers and developers might often need a data to be entered by the user. Like you  might have seen many websites asking for your username and password for logging in such Facebook, Twitter, Gmail, etc. You need to enter your details to use these websites.This is just one application of importance of user inputs. This will stop you at a certain point and will move forward when you enter details

To take user input from keyboard we just need to use an inbuilt function input() in our program

Note: Here we are discussing python 3.0 and above .The older versions have some different format so don't confuse with them 

SYNTAX:
input ( prompt )

eg. 

print("Enter your username")
username=input()
print("Enter your password")
password=input()
print("Your username is :",username)
print("Your password is :",password)

Output:

Enter your username
mohit@yopmail.com
Enter your password
123+-[]@
Your username is : mohit@yopmail.com                                                            Your password is :123+-[]@

Or instead of using print (for specifying which input you want to take from user), you can simply use a statement inside input() function as specified in the example:

eg. 

username = input("Enter your username")
password = input("Enter your password")
print("Your username is", username)
print("Your username is", password)

Output:

Enter your username ankit@hotmail.com
Enter your password ankit1234@#
Your username is  ankit@hotmail.com                                                                Your username is  ankit1234@#

Remember that the input() function takes input in the form of string.Numbers can also be taken as strings.It is illustrated in below example:

eg.

a=input("Enter first value ")
b=input("Enter second value ")
c=input("Enter third value ")
print("Output is",a+b+c) #Strings get concatenated when + operator is used

Output:

Enter first value 45

Enter second value 67

Enter third value 90

Output is 456790

We can be double sure about it if we use type() function for checking type of variables.

a=input("Enter first value")
b=input("Enter second value")
c=input("Enter third value")
print("Output is",a+b+c)
print(type(a))
print(type(b))
print(type(c))

Output:

Enter first value hii 

Enter second value67.89

Enter third value][\\

Output is  hii 67.89][\\

<class 'str'>

<class 'str'>

<class 'str'>

Printing value multiple times :

a=input("Enter first value ")
b=input("Enter second value ")
c=input("Enter third value ")
n=10print((a+b+c+"\n")*10)

Output:

Enter first value Hey!

Enter second value Subscribe

Enter third value this blog

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