CODEWITHSUNDEEP
pythonrandom
HELLOANY1THERE
HELLOANY1THERE

Reputation: 1

Python random choice math task (code integer message)

I have the following code:

import random
import operator

operators={"+":operator.add,
           "-":operator.sub,
           "X":operator.mul}

name = input(" What is Your Name ? :")
score = 0
counter = 1

for question in range(0,10):
    num1 = random.randint(1,13)
    num2 = random.randint(1,13)
    ranop = random.choice(operators)
    answer = operators.get(ranop,num1,num2)#operator searches in operators(DICTIONARY) for random operator and then use num1 and num2 to create a question
    print("{0} {1} {2}=".format(num1,ranop,num2))
    if guess==answer:
          print("✔")
    else:
        print("✘,The answer was {0}".format(answer))
print ("{0}, You Finished! You got {1}/10".format(name.title(),score))

I can't find why the following error occurs:

What is Your Name ? :s
Traceback (most recent call last):
  File "substr.py", line 15, in <module>
    ranop = random.choice(operators)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/random.py", line 254, in choice
    return seq[i]
KeyError: 0

Upvotes: 0

Views: 81

Answers (2)

Teepeemm
Teepeemm

Reputation: 4508

You have the following errors:

ranop = random.choice(operators) # choice takes a sequence, not a dictionary.
answer = operators.get(ranop,num1,num2)
# In your case, get takes a single argument.  It returns a function, which you apply to the numbers.
guess == answer # You never define guess.

It should now run, but you probably want to increment score at some point.

Upvotes: 0

robert
robert

Reputation: 34438

random.choice requires a sequence type, like tuple or list. Changing random.choice(operators) to random.choice(list(operators)) should fix this specific issue, but I still have no idea what you're attempting to do with this code.

Upvotes: 2

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