!= vs ==

Question

I though != meant "is not". In the below logic, I wrote it down in a way like saying "if the user refuses to buy the tickets, then say "Thank you". But regardless if the answer is Y or N, it stays in the "if" loop, how come?  
proceed = input("Would you like to proceed, {}?  Y/N  " .format(name))
if proceed.lower() != "n":
    print("SOLD!")
    ticketsremaining = ticketsremaining - num_tickets    
else:
    #say Thank them by name.
    print("Thank you, {}." .format(name))

tomaszfurmanczyk · Answer

This all depends on how you would like to structure the conditional statement.
However, the more efficient design would be:
proceed = input("Would you like to proceed, {}?  Y/N " .format(name)) 
if proceed.lower() == "y": 
     print("SOLD!") 
     ticketsremaining = ticketsremaining - int(num_tickets)
else:  
     print("Thank you, {}." .format(name))

Steven Parker · Answer

The loop would be defined with a "for" or "while", neither of which are shown here.
Also, what's inside the loop is determined by indentation.  For your indentation to show up you have to post your code using Markdown  formatting (https://teamtreehouse.com/library/code).

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Nikolaos Karathanasis

Nikolaos Karathanasis

!= vs ==

Nick Evershed

Nick Evershed

2 Answers

Steven Parker

Steven Parker

tomaszfurmanczyk

tomaszfurmanczyk