[FIXED] Change each json object value with for loop

Issue

I'm trying to one by one, go through each json object and subtract 1 from each value, but I'm not sure where to start...resources on this specific thing are scarce online so I came here...

{
  "12345678910":32,
  "10987654321":21  // after one loop will change to 31 and 20
}

json_file=json.load(file)

for object in json_file:
    # subtract 1 from value

Solution

You're almost there. Inside the for loop you just need to

json_file[object] -= 1

and then:

json.dump(file, json_file)

Note though that you shouldn't use object as a variable name as it shadows the inbuilt class. Below I've changed your code to use key instead.

Full code:

with open('file.json', 'r') as file:
    json_file=json.load(file)

for key in json_file:
    # subtract 1 from value
    json_file[key] -= 1

with open('file.json', 'w') as file:
    json.dump(json_file, file)

Answered By - Nick