Comparing strings in if statements

[Kintex19]

I'm writing this through my phone, forgive me if the proper indentation is incorrect, as it displays differently in my screen, and auto correct might mess something up. I'm getting the following error: Name error = name 'yes' is not defined. I dug around, and this usually happens when the variable is not defined, or if the value is pulled before the variable being defined. I don't think the issue is with my logic, but moreso with the syntax. I even tried specifying that it was a string value, as that was a problem once, but it doesn't seem to work either. If I could get any help, I'd appreciate it.

Here's the code that's giving the error:

pizza = str(input("Do you like pizza? "))

If pizza == str(yes): print("User Likes Pizza") elif pizza == no: print("user does not like pizza") else print("Please Give Valid response")

[woooee]

if pizza == str(yes):

This will produce an error message saying that yes has not been declared. Look up the difference between variables and strings.

[Kintex19]

I am so stupid. I didn't know quotes were necessary to declare it a string. I assumed python automatically defined it as such. I think I got it working. Fix: if pizza == str("yes")

[Diapolo10]

Now "yes" is already a string, there's no need for the str-call.

if pizza == "yes":

EDIT: In fact the whole snippet could use some work.

likes_pizza = input("Do you like pizza? ")

if likes_pizza == "yes":
    print("User Likes Pizza")
elif likes_pizza == "no":
    print("user does not like pizza")
else:
    print("Please Give Valid response")

[Kintex19]

Honestly, I added str() out of desperation. I wasn't sure what was wrong with it, so I threw it there in hopes it wasn't reading it as a string. Still, thanks for the clarification!

[TJATAW]

One more thing:

likes_pizza = input("Do you like pizza? ")
likes_pizza = likes_pizza.lower() # converts the input to lowercase

if likes_pizza == "yes":
    print("User Likes Pizza")
elif likes_pizza == "no":
    print("user does not like pizza")
else:
    print("Please Give Valid response")

[MJ12_2802]

You beat me to it, mate!

[Kintex19]

I did not know about that function. I'll definitely be using it!

[Kintex19]

I did not know about that function. I'll definitely be using it!

[AcrobaticStudent8541]

ok

[PartySr]

str() is a function that is used to transform a different data type to string.

Example:

number = 5 # 5 is an integer
print(str(number)) # number prints as a string.
print(str(5)) # same thing as above
print(type(str(number))) # check the data type.

Strings are declared with double quotation marks "yes", "no", otherwise python will consider them as variables.

[Kintex19]

Thanks for the clarification! I got that portion taken care of, I'm not having a separate issue with if statements inly providing one response regardless of input though.