Military time challenge in python

Question

Hello, my code fails 2 of the hidden test cases and I'm not sure why, could anyone point me in the right direction?

stri = input()
stri = stri.split()
num = stri[0]
word = stri[1]

# splits input into numerals and daypart, then assigns those to their own variables

num = num.split(":")

#splits hours and minutes at num[0] and num[1] repectively

if word == "PM" and int(num[0]) != 12:
output = int(num[0]) + 12
#adds 12 to hours if pm except for special case of 12pm, as thats still 12:00 in military time

elif word == "AM" and int(num[0]) == 12:
ouput = int(num[0]) - 12
#checks for special case of 12am, not sure what the expected output is, but if 00:00, then -12, if 24:00 then +12

else:
output = int(num[0])

output = str(output)

if len(output) == 1:
ouput = "0" + output

#converts to string and adds leading 0 if necessary

print(f"{output}:{num[1]}")

Answer 1

You missed 't' in output:
if len(output) == 1:
output = "0" + output
so was incorrect result for time like 3:15 AM

Answer 2

Oh my God, the missing t was it, fixed that and passed all 5 cases. Thank you both of you for all the help

Answer 3

First and foremost, Pandas is your friend. Secondly, have you built a use case for lower "am" and "pm"?... Those hidden test cases can be a bit tricky, so its hard to say what needs to be tweaked

Answer 4

Hmm, I'm pretty new and have never heard of pandas before but I'll look into it. Gonna try adding in code accounting for lowercase am/pm and will get back

Answer 5

Here you go, a couple of links to get you started, there is a lot of power in Pandas

https://datatofish.com/strings-to-datetime-pandas/

datetime formatting

https://docs.python.org/3/library/datetime.html#strftime-and-strptime-behavior

Answer 6

Used .lower() to guarantee they would be written as am/pm then adjusted my conditionals accordingly, still no dice. Guess I'll read up on pandas and then take another shot at it using that. Thanks for your help!

Answer 7

If you want to go with the code you have written, I would check line 23... it fails with 12:01 AM as an input

Answer 8

st=input()
w=st[:-2].split(":")
y=w[0]
x=w[1]
if(len(y)<2):
y="0"+y
if(st[-2]=='A'):
if(y=="12"):
y="00"
print(str(y)+":"+x)
else:
fin=0
if(y!="12"):
fin=int(y)+12
fin=str(fin)
print(str(fin)+":"+x)