A simple "If...Else" question from a beginner

[Serena2022]

Hi everyone! I encountered this problem and spent hours on trying to resolve it:

The following does run just fine when you enter "eggs", or "cereal" :the contents after "If" get executed without issue. However, After executing the contents after "If", the contents after "Else" get executed too! That is, the sentence "Sorry our auto system does not support this option yet \nPlease ask your waiter directly" always follow, regardless if you enter "eggs", or "cereal" or others.

How come the contents after "If" and "Else" be executed at the same time? Thank you for any insight!! Please see the attached.

print("Good morning! What would you like for breakfast? \nYou can have eggs, cereal, fruit or pancakes.")

breakfast = input("Please enter your choice of breakfast from the list: ")

if breakfast == "eggs":
    print("How would you like your eggs? \nYou can have them fried, scrambaled, or boiled.")
    
    eggstype = input ("Please enter your choice of eggs from the list: ")
    if eggstype == "boiled":
        print("How would you like your eggs boiled? \nYou can have them hard or soft.")

        boiledtype=input("Please enter hard or soft: ")
        if boiledtype == "hard":
            print ("Thank you! Your hard boiled eggs will arrive soon.")
        if boiledtype == "soft":
            print ("Thank you! Your soft boiled eggs will arrive soon.")
    else:
        print("Sorry your choice is not available.")
if breakfast=="cereal":
    print("What gype of cereal would you like? \nYou may choose porridge, muesli, corn flakes or rice bubbles.")
    cerealtype = input("Pleaes enter your choice of cereals from the list: ")
    if cerealtype == "porridge":
        print("What type of milk you'd like with your cereal? \nYou may have full cream milk or light white milk.")

        milktype = input("Please enter full cream milk or light white milk:")
        if milktype == "full cream milk":
             print("Thank you and your porridge with full cream milk will arrive shortly.")
        if milktype == "light white milk":
            print("Thank you and your porridge with light white milk will arrive shortly.")
    else:
        print("Sorry your choice is not available.")
if breakfast=="fruit":
    print("What type of fruit would you like? \nYou may choose tropical or European fruit.")
    fruittype = input("Please enter your choice of fruit:")
    if fruittype == "tropical":
        print("What type of tropical fruit would you like? \nYou may choose duriam or pineapple.")

        tropicaltype = input("Please enter duriam or pineapple.")
        if tropicaltype == "duriam":
            print("Thank you and your duriam will arrive shortly.")
        if tropicaltype == "pineapple":
            print("Thank you and your pineapple will arrive shortly.")
    else:
        print("Sorry your choice is not available.")
                
            
else:
    print("Sorry our auto system does not support this option yet \nPlease ask your waiter directly")
print("Enjoy your breakfast")
    

Error:
Good morning! What would you like for breakfast? 
You can have eggs, cereal, fruit or pancakes.
Please enter your choice of breakfast from the list: eggs
How would you like your eggs? 
You can have them fried, scrambaled, or boiled.
Please enter your choice of eggs from the list: boiled
How would you like your eggs boiled? 
You can have them hard or soft.
Please enter hard or soft: soft
Thank you! Your soft boiled eggs will arrive soon.
Sorry our auto system does not support this option yet 
Please ask your waiter directly
Enjoy your breakfast

  Question.py (Size: 2.42 KB / Downloads: 222)

[menator01]

if you do not want the else to execute change all other if's except first to elif. the else only works with last if.

print("Good morning! What would you like for breakfast? \nYou can have eggs, cereal, fruit or pancakes.")

breakfast = input("Please enter your choice of breakfast from the list: ")

if breakfast == "eggs":
    print("How would you like your eggs? \nYou can have them fried, scrambaled, or boiled.")

    eggstype = input ("Please enter your choice of eggs from the list: ")
    if eggstype == "boiled":
        print("How would you like your eggs boiled? \nYou can have them hard or soft.")

        boiledtype=input("Please enter hard or soft: ")
        if boiledtype == "hard":
            print ("Thank you! Your hard boiled eggs will arrive soon.")
        if boiledtype == "soft":
            print ("Thank you! Your soft boiled eggs will arrive soon.")
    else:
        print("Sorry your choice is not available.")
elif breakfast=="cereal":
    print("What gype of cereal would you like? \nYou may choose porridge, muesli, corn flakes or rice bubbles.")
    cerealtype = input("Pleaes enter your choice of cereals from the list: ")
    if cerealtype == "porridge":
        print("What type of milk you'd like with your cereal? \nYou may have full cream milk or light white milk.")

        milktype = input("Please enter full cream milk or light white milk:")
        if milktype == "full cream milk":
             print("Thank you and your porridge with full cream milk will arrive shortly.")
        if milktype == "light white milk":
            print("Thank you and your porridge with light white milk will arrive shortly.")
    else:
        print("Sorry your choice is not available.")
elif breakfast=="fruit":
    print("What type of fruit would you like? \nYou may choose tropical or European fruit.")
    fruittype = input("Please enter your choice of fruit:")
    if fruittype == "tropical":
        print("What type of tropical fruit would you like? \nYou may choose duriam or pineapple.")

        tropicaltype = input("Please enter duriam or pineapple.")
        if tropicaltype == "duriam":
            print("Thank you and your duriam will arrive shortly.")
        if tropicaltype == "pineapple":
            print("Thank you and your pineapple will arrive shortly.")
    else:
        print("Sorry your choice is not available.")


else:
    print("Sorry our auto system does not support this option yet \nPlease ask your waiter directly")
print("Enjoy your breakfast")

Output:
λ python play.py                     
Good morning! What would you like for
You can have eggs, cereal, fruit or p
Please enter your choice of breakfast
How would you like your eggs?        
You can have them fried, scrambaled, 
Please enter your choice of eggs from
How would you like your eggs boiled? 
You can have them hard or soft.      
Please enter hard or soft: soft      
Thank you! Your soft boiled eggs will
Enjoy your breakfast                 

[Serena2022]

if you do not want the else to execute change all other if's except first to elif. the else only works with last if.

Hi mentor!

Thank you so much for your help! I changed the If into elif except the first one and it worked!
Sorry I'm embarrassed to ask what do you mean by "the else only works with last if"? And why the previous coding didn't work as desired? Thank you again! It helped me enormously!

[menator01]

Take this for example, if the first if is true it will execute. If not nothing will happen, the code moves to the next if.
The 2nd if will execute if it is true. If not the else will execute because, the 2nd if is false. The first if does not have a 2nd option to execute if it is false. Hope that makes sense.

if val: # if value is true execute
    ... do this
if val: # if this values is true
    ... do this
else: # The 2nd if value is not true, so execute this
    ... do this

[Serena2022]

Take this for example, if the first if is true it will execute. If not nothing will happen, the code moves to the next if.
The 2nd if will execute if it is true. If not the else will execute because, the 2nd if is false. The first if does not have a 2nd option to execute if it is false. Hope that makes sense.

if val: # if value is true execute
    ... do this
if val: # if this values is true
    ... do this
else: # The 2nd if value is not true, so execute this
    ... do this

Hi Mentor!

Yes thank you for your precious time! It makes perfect sense!

However in this case it seems if the first "if" is true, the last "else" still gets executed:

Error:
Good morning! What would you like for breakfast? 
You can have eggs, cereal, fruit or pancakes.
Please enter your choice of breakfast from the list: eggs
How would you like your eggs? 
You can have them fried, scrambaled, or boiled.
Please enter your choice of eggs from the list: boiled
How would you like your eggs boiled? 
You can have them hard or soft.
Please enter hard or soft: soft
Thank you! Your soft boiled eggs will arrive soon.
Sorry our auto system does not support this option yet 
Please ask your waiter directly
Enjoy your breakfast

So if the first if is true, why "else" still gets executed?

I'm sorry to be a pain

[menator01]

Fruit is not true. No fruit was asked about. In the original code. So fruit is false. breakfast == 'fruit'. The else is with this if statement.

[Serena2022]

Fruit is not true. No fruit was asked about. In the original code. So fruit is false. breakfast == 'fruit'. The else is with this if statement.

Thank you so much for taking the time to answer all my shallow questions! I couldn't have figured it out with your help! It's much appreciated!