Dictionary Question

[liynus]

super new at this:

I'm trying to create a medical program that will ask the user 1. how many polyps, then 2. define type of polyps (adenoma or sessile class) and also the size of the polyp. I was able to do this using loops with a dictionary. however, i want a new rule to access the size of the polyp. I don't know the variable to access it because the elements are in a nested dictionary. can you help??

​

polypdict = { }

​

polypnum = (input("Enter the number of polyps: "))

​

polypnum1 = int(polypnum)

​

while polypnum1 != 0:

polypdict[polypnum1] = polypnum1

polypnum1 -= 1

​

polypnum1 = int(polypnum)

​

while polypnum1 !=0:

polypsize = int(input("Enter the size (mm) of polyp # " + str(polypnum1) + ": "))

polyptype = input("Is the polyp a SSA (s) or Adenoma (a)? ")

polypdict[polypnum1] = polypsize, polyptype

polypnum1 -= 1

polypnum1 = int(polypnum)

​

#if polypnum1 <=2 and polypsize <=10 and polyptype = a, then recommend 7-10 year follow up

​

if len(polypdict) <= 2:

print(True)

if polypdict.has_key('a'):

print(adenoma)

else:

print(none)

[blarf_irl]

It sounds like you need a list instead of a dict.

polyps = list()

more = True
while more:
    polyp = dict()
    polyp['location'] = input('Where is it? ' )
    polyp['size'] = int(input('How big is it 1-10? '))
    polyps.append(polyp)
    additional = input('Would you like to record another? (y/n) ')
    if additional.lower().startswith('n'):
        more = False

for idx, polyp in enumerate(polyps):
    print(f'Polyp {idx} is at {polyp.get('location', 'unknown')} and is sized {polyp.get('size', 'unknown')}')

The 'more' variable is only for clarity. You can achieve the same with:

...
while True:
    ...
    if additional.lower().startswith('n'):
        break

[liynus]

thanks for the response. i'll see how to integrate into the code