如何使用字典修复无限While循环

Question

I am trying to iterate through the dictionary shown in the picture where I have to retrieve the value of key 'time' whenever the key code = '36' between tag = 'new battery'.

In other words, from the very first time 'tag' == 'new battery' I've to find the time when code == '36' until the next time 'tag' == 'new battery'. It should do this until we finish parsing the dictionary. Any help will be appreciated.

I did a while loop and tried it but i am stuck with an infinite loop. I am brand new to Python. Sorry for being unreadable, but I did the best that I could.

for key in d:
       while(d[key]['type'] != '44'): 
          if d[key]['code']=='36':
            time_6=d[key]['time']
            print(time_6)

            countlist.append(time_6)

Answer 1

As from my understanding this code will help to resolve your query. We are changing a little bit in your code.you have to reiterate between key when first time and last time tag new battery called.

for key in d:
       if(d[key]['type'] == '44'):
           key_bw_nw_battery.append(key)
for f in range(min(key_bw_nw_battery),max(key_bw_nw_battery),1):
       if d[f]['code']=='36':
       time_6=d[f]['time']
       print(time_6)
       countlist.append(time_6)

Answer 2

As far as I can tell, there is no need for this code to use double loops (quadratic behaviour), a while , or even the dictionary keys.

for item in d.values():
    if item['type'] != '44' and item['code'] == '36':
        time_6 = item['time']
        print(time_6)

        countlist.append(time_6)

The key thing to remember about while is that something must be changing in the condition it's testing. It doesn't advance on its own like for does, so you were testing the same item repeatedly. Since the while was inside the for , the for couldn't advance until the while ended (which it never did).