CODEWITHSUNDEEP
pythonstringinteger
T97
T97

Reputation: 23

Convert an input result/string to integer in Python

I am having issue with running this code. When I try to run it, it says it won't work because age is a string. How do I convert the string to an integer? I have also tried to do 18 - int(age) and that won't work either.

    age = input ("How old are you? (): ")
    if int(age) > 18 :
        print("You're old enough to drink") 
    else:
        print("You're not old enough to drink. Wait", + 18 - age, "more years")

Upvotes: 0

Views: 97

Answers (4)

Delta D
Delta D

Reputation: 1

while True:
    age = input ("How old are you?  ")
#Check if the input is a positive integer
    if age.isdigit() >0:
        break
if int(age) > 18 :
    print("You're old enough to drink.") 
else:
    print("You're not old enough to drink. Wait",18 - int(age), "more years.")
#Remove the + in 18 because you already use comma after'Wait'

Upvotes: 0

ppwater
ppwater

Reputation: 2277

You can add try.. except..

Like this:

age = input("How old are you? (): "))
try:
    age = int(age)
    if age > 18 :
        print("You're old enough to drink.") 
    else:
        print(f"You're not old enough to drink. Wait {18-age} more years.")
except ValueError:
    print("Not a valid age. Please enter again")

and by the way, you can use f' strings for string format.

or use .format :

print("You're not old enough to drink. Wait {0} more years.".format(18-age))

Upvotes: 0

Hayley Guillou
Hayley Guillou

Reputation: 3973

age = input("How old are you? (): "))
try:
    age = int(age)
    if age > 18 :
        print("You're old enough to drink.") 
    else:
        print(f"You're not old enough to drink. Wait {18-age} more years.")
except:
    print("You did not enter a valid age.")

Upvotes: 1

Marko
Marko

Reputation: 113

Note that input("How old are you? (): ") is int(input("How old are you? (): "))

age = int(input("How old are you? (): "))
if int(age) > 18 :
    print("You're old enough to drink") 
else:
    print("You're not old enough to drink. Wait {} more years".format(18-age))

Upvotes: 0

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