jiaqi liu

acq=['A1', 'A2', 'D', 'A3', 'A4', 'A5', 'D', 'A6']
ll=[]
temp=[]
for k,v in enumerate(acq):
    if v == 'D':
        ll.append(temp)
        temp=[]
        continue    # continue here
    temp.append(v)
l1.append(temp)
print(ll)