Python input from user

Python input from user:

Python allows user for Input

python get input from user

A method to take input from user in python is totally different than the other programing language like c , c+ +  and java, there is inbuild function in Python for input

Python 3.6 = input()    // Latest version 

Python 2.7 =raw input()  // old version 

Before Using input function console should tell user here you have to write the input this is very important step because one a programmer forgot this step console will wait for user input and user don't know where to write the input , this can be done by using print () function or writing a message/comment inside input function 

e.g. :

x = input("Enter First Number")

or

print("Enter first number ")

x =input()

Another important point is input() function all ways take input in string form (data type) i.e. 

" str " data type 

so if I run a program on pyCharm 

a=input("enter first number")
b=input("enter second number")
z = a + b
print(z)

Assume I enter first number as 5 and second as 4
output come as a 54 instead of 9 this is because it treat input as a string data type






to overcome this problem we have to tell compiler that it is a integer 
to do that we need two more variable and convert it into integer data type
 
a=input("enter first number")
x=int(a)
b=input("enter second number")
y=int(b)
z = x+y
print(z)

output = 9




or we can do it directly 

a=int(input("enter first number"))

b=int(input("enter second number"))

z= a +b

print(z)

output = 9





Char input in Python : As we have discuss in  our article "data types in Python"
about character data type ,Python don't have a char data type but python provides string and 
we have to convert it into a char data type ,To get a single char from string  we have to 
mention its index number 
e.g. :
ch = input("enter a char")
print =(ch[0])

or

ch = input("enter a char ") [0]
print(ch)

 and in this way we can take a char input from user 





*We can evaluate the expression that user will enter by using a function eval().
eval() function will evaluate the expression enter by user and it will pass the answer 
e.g.:

ev = eval(input("Enter the expression"))
print(ev)






This function is vary important while building a programme for calculator 

 Compiler will stop execution of code when it comes to input() function and start 
when user enter the input 





I hope this article on input from user is helpful for u 
                                
                               Thank u 😊