TypeError: '<' not supported between instances of 'str' and 'int'

[Svensation]

Dear all

I just tried my first steps with Python and found a - on the first sight - simple example in the internet. I tried to do it exactly the same way mentioned on the page. The programme looks as follows:

secret = 10
guess =0
i = 0

while guess != secret:
    guess = input("Raten Sie: ")
    if guess < secret:
        print ("Zu klein")
    if guess > secret:
        print ("Zu gross")
    i = i + 1
print ("Super, Sie haben es in "), i, ("Versuchen geschafft!")

Unfortunately it shows me the message: TypeError: '<' not supported between instances of 'str' and 'int'

What does that mean? What is wrong?

Thx for any help!

[buran]

input() will return str. you need to convert it to int in order t do the comparison

[Svensation]

Hi Buran

Thx for the information, will do better next time.

As I said I am an real beginner. What do you mean with int? where do I have to place that?

[buran]

the built-in function int()

guess = int(input("Raten Sie: "))

note that incorrect input, that cannot be converted to int will raise an exception

Error:
ValueError: invalid literal for int() with base 10

[Svensation]

thx a lot, it works!

Except the last line, as it doesn't count the number of trials. It only showes me the first piece of the print command.

[buran]

it should be

print("Super, Sie haben es in ", i, "Versuchen geschafft!")

however it's waaaaaaay better to use string formatting, e.g.

using f-strings (python3.6+):

print(f"Super, Sie haben es in {i} Versuchen geschafft!")

or str.format() method:

print("Super, Sie haben es in {} Versuchen geschafft!".format(i))

see
https://docs.python.org/3/library/string...ing-syntax
https://pyformat.info/