CODEWITHSUNDEEP
python
user2913135
user2913135

Reputation: 1

How to increment variable numeric value.

Okay, so i'm trying to keep track of how many questions the player got right, but when I say 'score = +1' it adds nothing to the score. How do I do this? Here is my code:

    score = 0

print('This is a 10 question quiz. Please do not use any capitol letters when answeringquestions'
)

print('1. Can elephants jump? (yes or no)')
answer_1 = input()
if answer_1 == 'yes':
    print('Wrong! Elephants cannot jump.')
if answer_1 == 'no':
    print('Correct! Elephants cannot jump!')
    score = +1

print('(true or false) Karoake means \"Empty Orchestra\" In Japanese')
answer_2 = input()
if answer_2 == 'true':
    print('Correct! Karoake does in fact mean \"Empty orchestra\" in Japanese')
    score = +1
if answer_2 == 'false':
    print('Wrong! Karoake does in fact mean \"Empty orchestra\" in Japanese')


print('Solve the math problem: What is the square root of 64?')
answer_3 = input()
if answer_3 == 8:
    print('Good job! The square root of 64 is 8!')
    score = +1
else:
    print('Incorrect! the square root of 64 is 8.')

print(score)

Upvotes: 0

Views: 1743

Answers (3)

Matt Reynolds
Matt Reynolds

Reputation: 807

What you're writing, score = +1, simply sets the 'score' variable to positive 1 (+1) over and over.

You really want to write, as samrap already said, either:

  • score += 1 - Sets the variable 'score' to one higher than what it was before
  • score = score + 1 OR score = (score + 1) - Sets the variable to the previous value plus 1 (The brackets, although not very python-like, help add clarity)

Upvotes: 0

Pepe
Pepe

Reputation: 6480

It should be score += 1 you have the operator reversed.

When you say score = +1 you are saying set score to positive one.

Upvotes: 1

samrap
samrap

Reputation: 5673

score += 1

or

score = score + 1

Much better detailed answer:

Behaviour of increment and decrement operators in Python

Upvotes: 2

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