split_taking_mt.py

import datetime
  
tdt = datetime.datetime.strptime('2:30.00', '%M:%S.%f')
total = 60 * tdt.minute + (tdt.second + (tdt.microsecond / 1000000.0))
done = False
count = 0
times = []
splits = []
while not done:
    split = input('split: ')
    if split == '':
        done = True
        continue
    try:
        dt = datetime.datetime.strptime(split, '%M:%S.%f')
    except:
        print('Try again!')
        continue
    split = 60 * dt.minute + (dt.second + (dt.microsecond / 1000000.0))
    splits.append(round(total - split, 2))
    total = split
  
splits.append(round(sum(splits), 2))
print(str(splits).strip('[]').replace(' ', '') + ',')