Что значит? TypeError: unsupported operand type (s) for -: 'str' and 'str'

Question

Пожалуйста объясните...

Answer 1

https://code.sololearn.com/c65tBiwxILoY/?ref=app

Answer 2

Please add your code on playground and provide the link. Sounds if you were trying to do something with a string, what's not allowed, like e.g. using operand < or >, but one can only help you, if you provide the code or at least the affected lines.

Answer 3

Yay, now I can see it 🙃 I used the following sample input (+ , -, * and / already worked properly):

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1
1
tugadi

And the compiler said there was a missing cast in line 44:
print("1-son + 2-son = " + str(result1))

Your result1 variable was of type float. If you're about to concatenate variables into messages to print, you need to cast them, if they're of different types.

Answer 4

Thank you 😊😊

Answer 5

I use PyCharm