Mimi Ou Yang wrote:
> print ("Quiz TIME!!!")
> ready = input("Are you ready?")
> if (ready in ("yes","YES","Yes")):
> print ("Alrighty")
> if (ready in ("no","NO","No")):
> print ("Too bad so sad. You're obligated to do it.")
> else:
> print ("OK (sarcasm)")
> When I write yes or YES or Yes or no or No or NO in the ready input it
> always print out Alrighty and OK (sarcasm) can you tell me what is the
> mistake in my code?
Assuming ready is "Yes" the following expression evaluates to True, the if-
suite is executed and "Alrighty" is printed
> if (ready in ("yes","YES","Yes")):
> print ("Alrighty")
Then the following expression evaluates to False, thus the if-suite is not
executed, but the else-suite is executed and thus prints "OK (sarcasm)"
> if (ready in ("no","NO","No")):
The first
if condition1:
suite1
and the second
if condition2:
suite2
else:
suite3
are completely separate. You can change by nesting them:
if condition1:
suite1
else:
if condition2:
suite2
else:
suite3
That way the second condition is only evaluated when the first condition is
False.
While this works there is a better option: put all conditions into a single
if ... elif... else:
if condition1:
suite1
elif condition2:
suite2
else: # neither cond1 nor cond2 are met
suite3
Taking your example:
if (ready in ("yes","YES","Yes")):
print("Alrighty")
elif (ready in ("no","NO","No")):
print("Too bad so sad. You're obligated to do it.")
else:
print("OK (sarcasm)")
By the way, the parens around the condition are superfluous, and you may
want to allow all spellings of "yes" (like "YEs" and "yEs") and "no", so
ready = ready.lower() # or ready.casefold()
if ready == "yes":
print("Alrighty")
elif ready == "no":
print("Too bad so sad. You're obligated to do it.")
else:
print("OK (sarcasm)")
The number of `elif`s is not limited -- if you like you can insert a
elif ready == "maybe tomorrow":
...
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