How to get max value from a list of dictionaries?

I have python list of dictionaries as below. I would like to find max value of 'high' field.

ohlc = [
  {
    'open' : 100,
    'high' : 105,
    'low' : 95,
    'close' : 103
  },
  {
    'open' : 102,
    'high' : 108,
    'low' : 101,
    'close' : 105
  }
  {
    'open' : 101,
    'high' : 106,
    'low' : 100,
    'close' : 105
  }
]

In this case function should return high = 108.

>Solution :

I provide a simple and easily understandable way using for loop, as follows:

import sys
ohlc = [
    {
        'open': 100,
        'high': 105,
        'low': 95,
        'close': 103
    },
    {
        'open': 102,
        'high': 108,
        'low': 101,
        'close': 105
    },
    {
        'open': 101,
        'high': 106,
        'low': 100,
        'close': 105
    }
]

max_high = -sys.maxsize # This will be a minimum value 
# or you can use: max_high = ohlc[0]['high'] to assign first high value.

for i in ohlc:
    if i['high'] > max_high:
        max_high = i['high']

print(max_high)
#108

If you want to know more about `sys.maxsize’, please see https://www.geeksforgeeks.org/sys-maxsize-in-python/