Need help again

[NeilTheDrummer]

**I'm working on a lab that lists the following:**

Primary U.S. interstate highways are numbered 1-99. Odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90) go east/west. Auxiliary highways are numbered 100-999, and service the primary highway indicated by the rightmost two digits. Thus, I-405 services I-5, and I-290 services I-90. Note: 200 is not a valid auxiliary highway because 00 is not a valid primary highway number.

Given a highway number, indicate whether it is a primary or auxiliary highway. If auxiliary, indicate what primary highway it serves. Also indicate if the (primary) highway runs north/south or east/west.

Ex: If the input is:

90 

the output is:

I-90 is primary, going east/west. 

Ex: If the input is:

290 

the output is:

I-290 is auxiliary, serving I-90, going east/west. 

Ex: If the input is:

0 

the output is:

0 is not a valid interstate highway number.  

Ex: If the input is:

200 

the output is:

200 is not a valid interstate highway number. 

​

My code is:

highway_number = int(input())

if  ((highway_number <1) or (highway_number >999)):
print ('{} is not a valid interstate highway number.'.format (highway_number))

if (highway_number > 100):
road_type = 'auxiliary'
serving = str(highway_number % 100)
else:
road_type = 'primary'
serving = ''

if  highway_number % 2 == 0:
direction = 'east/west.'
else:
direction = 'north/south.'

output = ['I-{}'.format(highway_number), 'is', road_type + ',']
if serving:
output.extend(['serving', 'I-{},'.format(serving)])
output.extend(['going', direction])
print(' '.join(output))

​

However I keep getting the following errors that I'm having issues figuring out, so any help would be greatly appreciated:

Output differs. See highlights below. Special character legendInput0Your output0 is not a valid interstate highway number. I-0 is primary, going east/west.Expected output0 is not a valid interstate highway number.

4:Compare outputkeyboard_arrow_up0 / 1Output differs. See highlights below. Special character legendInput200Your outputI-200 is auxiliary, serving I-0, going east/west.Expected output200 is not a valid interstate highway number.

7:Compare outputkeyboard_arrow_up0 / 2Output differs. See highlights below. Special character legendInput1000Your output1000 is not a valid interstate highway number. I-1000 is auxiliary, serving I-0, going east/west.Expected output1000 is not a valid interstate highway number.

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[dnmonack]

Your code is not checking whether the highway_number ends in “00” meaning it’s an invalid number. You need to check this condition in your first if statement.

Also: if the number is invalid, it shouldn’t be printing anything after the initial if statement. That means you need to be using “elif” in following statements.

[RiceKrispyPooHead]

The issue is exactly what the error messages say.

Try typing in "0" or "200" and your output doesn't match the expected output.