I am trying to do an update for a list of dictionaries in python-CodePudding

I have to update the list of dictionaries, more precisely: if the value is greater than 70 then the value associated then the key should be uppercase, otherwise if it is less than or equal to 70 it should be lowercase. I tried to use a for loop but I get this error for k,v in list():

TypeError: 'list' object is not callable

This is what I have so far:

list = [{'brand':'nokia', "age":"56"}, {'brand':'motorola', "age":"80"}, {'brand':'sony', "age":"42"}, {'brand':'allview', "age":"10"}, {'brand':'huawei', "age":"15"}] 

for k,v in list(): 
    if v > 50: 
        list[k].upper() 
    else:
        list[k].lower() 

print = list()

CodePudding user response：

Given your code, I made the following solution

list = [{'brand':'nokia', "age":"56"}, {'brand':'motorola', "age":"80"}, {'brand':'sony', "age":"42"}, {'brand':'allview', "age":"10"}, {'brand':'huawei', "age":"15"}] 
 
#set the range n for index 0,n to the number of dictionary entries in your list.

for index in range(0,5):
    print(list[index]["age"])
    # if list([index]["age"])>70:
    #     print("old asF")
    int_value = int(list[index]["age"])
    if int_value >70:
        new_key = "Age"
        old_key = "age"
        #using the .pop method we assign a new key where we removed the age key.
        list[index][new_key] = list[index].pop(old_key)  

print(list)

gives the following output

[{'brand': 'nokia', 'age': '56'}, {'brand': 'motorola', 'Age': '80'}, {'brand': 'sony', 'age': '42'}, {'brand': 'allview', 'age': '10'}, {'brand': 'huawei', 'age': '15'}]

CodePudding user response：

what you want maybe:

s = [{'brand':'nokia', "age":"56"}, {'brand':'motorola', "age":"80"}, {'brand':'sony', "age":"42"}, {'brand':'allview', "age":"10"}, {'brand':'huawei', "age":"15"}] 
[ {'brand': item['brand'], 'AGE' if int(item['age']) > 70 else 'age': item['age']} for item in s]

the output is:

[{'brand': 'nokia', 'age': '56'}, {'brand': 'motorola', 'AGE': '80'}, {'brand': 'sony', 'age': '42'}, {'brand': 'allview', 'age': '10'}, {'brand': 'huawei', 'age': '15'}]