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Start your free trialTerry Felder
1,738 Pointsif statement vs. raise ValueError
so i went and tried to solve the errors before i got to finish the video and i ended up using an if statement instead of the raise ValueError route.
my question is...what is the difference between using these two methods?
finally if a get the same result using both methods does it matter which i use and why?
p.s once i find a way to format it i will do so ASAP
try:
num_tickets = int(input('Okay, {}! How many tickets would you like?: '.format(name)))
if num_tickets > ticket_remaining:
print('You exceeded the amount of tickets, there are {} tickets left.'.format(ticket_remaining))
continue
else:
ticket_price = num_tickets * TICKET_PRICE
print('Okay {} you asked for {} tickets, the total cost will be {}$'.format(name,num_tickets,ticket_price))
except ValueError:
print('Invalid key please try to use a number')
else:
1 Answer
Steven Parker
231,172 PointsA similar question was asked two days ago. You might want to take a look at the answers there.
But the main difference is that the instructor's approach yeids slightly more compact code and a more generic error message that displays information from the system.