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Commands Output
print("hello") hello
print() friends
print("friends")
print("hello", end="%") hello%friends
print("friends")
print("hello", "friends", "welcome", sep="#", hello#friends#welcome@
end="@")
print("I am in class", 9) I am in class 9
a = 5
b = 10 Sum of two numbers is 15
print("Sum of two numbers is " + str(a + b))
age = 14 I am 14 years old
print("I am ", age, " years old")
The input() Function
The input() function is used to take an input from the user. When, this statement executes then the flow of
the program stops and waits with the cursor blinking for the user to enter a value. The input given by the user
is always a string value in Python.
The syntax to use the input() function is:
input(prompt)
Where, prompt is a string that works as a message for the user at the time of input. For example,
name = input("enter your name: ")
print(name)
When the preceding statement executes, it will ask to enter name. When you enter the name and press the Enter
key, entered name will be displayed on the screen:
enter your name: Chirag
Chirag
Let us take another example:
a = input("enter first number") #line 1
b = input("enter second number") #line 2
c = a + b
print("the sum is", c)
If we execute the preceding code and enter 4 and 5 as the values of the first and second numbers, then the
answer will be 45 instead of 9. This is because Python considers every input value as string. If we want to perform
mathematical calculations, then we have to convert the taken input explicitly by using int( ) or float( )
functions. The syntax to convert an input value into an integer or float type is:
a = int(input(prompt)) # to convert into integer
b = float(input(prompt)) # to convert into float
306 Touchpad Artificial Intelligence (Ver. 2.0)-IX

