Adding bracket in python list

Question

I got a list problem:

 position = self.request.POST.getlist('position')
 status = self.request.POST.getlist('tooth')

 a = dict((i, j) for i, j in zip(position, status) if j != '')

 print(a)
 {'14': 'status1', '15': 'status2', '13': 'status3'}

Is it possible to achieve format result like:

  {'14': [status1], [15]: [status2], [13]: [status3]}

Please.

python dictionaries cannot have lists as keys like in your desired output. See [here](https://stackoverflow.com/questions/7257588/why-cant-i-use-a-list-as-a-dict-key-in-python). — kaza, Oct 14 '17 at 04:16
if you want the values to be lists, you could do something like: a = dict((i, [j]) for i, j in zip(position, status) if j != '') — Ashish Acharya, Oct 14 '17 at 04:17
You can certainly _print_ the data like that, by using the appropriate formatting commands, but are you sure you really want that exact format? — PM 2Ring, Oct 14 '17 at 04:25

score 2 · Accepted Answer · answered Oct 14 '17 at 04:17

This should do it:

{k:[v] for k, v in a.items()}

This results in:

{'13': ['status3'], '15': ['status2'], '14': ['status1']}

Note that the keys are unchanged. Your example shows some of them being converted to integers and embedded in lists, but lists cannot be dictionary keys.

Adding bracket in python list

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