How to update dictionary in multiple functions-CodePudding

I need to update dictionary in multiple functions. With each function new Key:Values are added to dictionary and finally main dictionary should be updated. Can anyone shed some light on. I have tried below

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}

def one():
    thisdict['new1'] = 'newvalue1'
    return thisdict

def two():
    thisdict['new2'] = 'newvalue2'
    return thisdict

print(thisdict)

I am getting below output:

{'brand': 'Ford', 'model': 'Mustang', 'year': 1964}

but I want output to print

{'brand': 'Ford', 'model': 'Mustang', 'year': 1964, 'new1': 'newvalue1', 'new2': 'newvalue2'  }

CodePudding user response：

It appears you are not calling your functions that are supposed to be altering your Dict. Without calling them nothing will be updated.

Try calling them like so:

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}

def one():
    thisdict['new1'] = 'newvalue1'
    print('one, changed')

def two():
    thisdict['new2'] = 'newvalue2'
    print('two, changed')

one()
two()

print(thisdict) # will give you what you want

You initially had the functions returning the thisdict value, but from what I could see this is unnecessary as you have a global thisdict variable that simply needs to be changed. This is why I added the print statements so you can see how things are being altered.

CodePudding user response：

ended up calling all the five functions. Used update() in each function to update the dictionary.