Popping key causes dict derived from object to revert to object
Loris Bennett
loris.bennett at fu-berlin.de
Mon Mar 25 10:58:39 EDT 2024
"Michael F. Stemper" <michael.stemper at gmail.com> writes:
> On 25/03/2024 01.56, Loris Bennett wrote:
>> Grant Edwards <grant.b.edwards at gmail.com> writes:
>>
>>> On 2024-03-22, Loris Bennett via Python-list <python-list at python.org> wrote:
>>>
>>>> Yes, I was mistakenly thinking that the popping the element would
>>>> leave me with the dict minus the popped key-value pair.
>>>
>>> It does.
>> Indeed, but I was thinking in the context of
>> dict_list = [d.pop('a') for d in dict_list]
>> and incorrectly expecting to get a list of 'd' without key 'a',
>> instead
>> of a list of the 'd['a]'.
> I apologize if this has already been mentioned in this thread, but are
> you aware of "d.keys()" and "d.values"?
>
> >>> d = {}
> >>> d['do'] = 'a deer, a female deer'
> >>> d['re'] = 'a drop of golden sunshine'
> >>> d['mi'] = 'a name I call myself'
> >>> d['fa'] = 'a long, long way to run'
> >>> d.keys()
> ['fa', 'mi', 'do', 're']
> >>> d.values()
> ['a long, long way to run', 'a name I call myself', 'a deer, a female deer', 'a drop of golden sunshine']
> >>>
Yes, I am, thank you. However, I didn't want either the keys or the
values. Instead I wanted to remove a key within a list comprehension.
Cheers,
Loris
PS: "a drop of golden *sun*" - rhymes with "a long, long way to run"
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