Operators from list is still showing quotation marks when printed (Python 3.1)

Question

When I'm coding, I choose a random value from a list and print it alongside two numbers to make a sum. However, the value from the list still shows the quotation marks and I don't understand why. The code is:

import random
level = input('Please choose either easy, medium or hard')
if level == 'easy':
    num1 = random.randint(1,5)
    num2 = random.randint(1,5)
    #Chooses a random operator from the list
    op = random.choice(['+', '-', '*'])
    #Arranges it so the larger number is printed first
    if num1 > num2:
        sum1 = (num1, op, num2)
    else:
        sum1 = (num2, op, num1)
    #Prints the two numbers and the random operator
    print(sum1)

I try running this code and the result I am given is:

(4, '*', 3)

When I want it to appear as:

4*3

Those numbers are randomly generated also but work fine. Does anyone know how to solve this problem?

Mureinik · Accepted Answer · 2015-09-12T17:25:23.303

2

You are printing a list, which produces this format. In order to get your desired output you could join the list with an empty delimiter:

print (''.join(sum1))

EDIT:

Just noticed you have the operands as ints, not strings. To use this technique, you should convert all the elements to strings. E.g.:

print (''.join([str(s) for s in sum1]))

edited Sep 12 '15 at 17:25

answered Sep 12 '15 at 17:12

Mureinik

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I tried adding this and was given the following error message: TypeError: sequence item 0: expected str instance, int found – Daisy Bradbury Sep 12 '15 at 17:16
@DaisyBradbury I think I just spotted the problem. Please see my edit. – Mureinik Sep 12 '15 at 17:18
I can't use this method as I need the value to stay as integers as I use it for a calculation later on in the program. – Daisy Bradbury Sep 12 '15 at 17:22
@DaisyBradbury you're just converting them for the sake of printing. In fact, we're printing a list comprehension based on `sum1`, not modifying `sum1` itself. – Mureinik Sep 12 '15 at 17:25
This seems unnecessarily complicated. – AChampion Sep 12 '15 at 17:36

score 1 · Answer 2 · answered Sep 12 '15 at 17:35

1

Given you know the format, you can just use print with a format specifier:

>>> sum1 = (4, '*', 3)
>>> print("{}{}{}".format(*sum1))
4*3

answered Sep 12 '15 at 17:35

AChampion

29,683
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Operators from list is still showing quotation marks when printed (Python 3.1)

2 Answers2