fixup for chat.python.

fixup.py

import pprint
d=[
    {
    "exchange": "B",
    "price": {
        "id": 1,
        "value": "false"
    }
    },
    {
    "exchange": "C",
    "price": {
     "id": 2,
     "value": "false"
    }
    }] 
def fixup(adict, k, v):
    if isinstance(adict,list):
        for item in adict:
            fixup(item,k,v)
    elif isinstance(adict,dict):
        for key in adict.keys():
            if k == key and adict["id"] == 2:
               adict[key] = v 
            if isinstance(adict[key],dict):
                fixup(adict[key], k, v)
            
fixup(d,"value","true")
pprint.pprint(d)

# result:
#[{'exchange': 'B', 'price': {'id': 1, 'value': 'false'}},
# {'exchange': 'C', 'price': {'id': 2, 'value': 'true'}}]