If a dictionary key has a Python list as its value!
Mats Wichmann
mats at wichmann.us
Thu Mar 7 13:29:07 EST 2024
On 3/7/24 07:11, Varuna Seneviratna via Python-list wrote:
> If a dictionary key has a Python list as its value, you can read the values
> one by one in the list using a for-loop like in the following.
>
> d = {k: [1,2,3]}
>
>
>> for v in d[k]:
>> print(v)
>
>
> No tutorial describes this, why?
> What is the Python explanation for this behaviour?
Sorry... why is this a surprise? If an object is iterable, you can
iterate over it.
>>> d = {'key': [1, 2, 3]}
>>> type(d['key'])
<class 'list'>
>>> val = d['key']
>>> type(val)
<class 'list'>
>>> for v in val:
... print(v)
...
...
1
2
3
>>>
More information about the Python-list
mailing list