Python dictionary key change

Question

I am creating a sort of a database and I need to change a key in a dictionary.

{'lastExecution': '1-1-1970', 'wachtwoord': 'wachtwoord', 'name': {'laatsteUpdate': '1-1-1970', 'puntenAantal': '0'}}

How can I change the key that is now called name and still keep the data assigned to it?

PS, I am using python(3.7.0b4)

whats your output looks like and what have you tried ? – Vikas Periyadath May 28 '18 at 09:05 — Vikas Periyadath, May 28 '18 at 09:05
I am new to programming and I don't know what o/p means – S.Benten May 28 '18 at 09:07 — S.Benten, May 28 '18 at 09:07

score 7 · Accepted Answer · answered May 28 '18 at 09:08

7

Here a try :

dct = {'lastExecution': '1-1-1970', 'wachtwoord': 'wachtwoord',
       'name': {'laatsteUpdate': '1-1-1970', 'puntenAantal': '0'}}

dct["new_name"] = dct.pop("name")
print(dct)

Output will look like :

{'wachtwoord': 'wachtwoord', 'new_name': {'puntenAantal': '0', 
 'laatsteUpdate': '1-1-1970'}, 'lastExecution': '1-1-1970'}

answered May 28 '18 at 09:08

Vikas Periyadath

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Thank you, the problem is solved – S.Benten May 29 '18 at 10:47

Vizag · Answer 2 · 2018-05-28T09:23:23.590

2

D = {'lastExecution': '1-1-1970', 'wachtwoord': 'wachtwoord',
   'name': {'laatsteUpdate': '1-1-1970', 'puntenAantal': '0'}}
a = D['name'] #To save the previous value
D['new key'] = a
del D['name']

edited May 28 '18 at 09:23

answered May 28 '18 at 09:08

Vizag

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Thanks you for your answer, but I get this error: a = dict["name"] #To save the previous value TypeError: 'type' object is not subscriptable – S.Benten May 28 '18 at 09:11
Please post the error – Vizag May 28 '18 at 09:11
I have tried this on my Python IDE and it works fine. – Vizag May 28 '18 at 09:18
1

@S.Benten Dude change dict keyword to your dict name, this one also works fine. – Vikas Periyadath May 28 '18 at 09:19
Yeah I think he is messing that up. Anyway I edited the answer. Thanks. @S.Benten does it work now? – Vizag May 28 '18 at 09:24
The problem is resolved thanks to your answers, thank you – S.Benten May 29 '18 at 10:47

NoorJafri · Answer 3 · 2018-05-28T09:15:13.510

0

data{'this': 'this is a message'}
data['that'] = data['this']
data.pop('this', None)

or in single step:

data[new_key] = data.pop(old_key)

edited May 28 '18 at 09:15

answered May 28 '18 at 09:08

NoorJafri

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Python dictionary key change

3 Answers3