[Python-Dev] What's missing in PEP-484 (Type hints)

[Dima Tisnek]

>> # plain data
>> user1 = dict(id=123,  # always int
>>     name="uuu",  # always str
>>     ...)  # other fields possible
>> smth = [42, "xx", ...]
>> (why not namedtuple? b/c extensible, mutable)
>> At least one PHP IDE allows to annotate PDO.
>> Perhaps it's just bad taste in Python? Or is there a valid use-case?
>
> Most (all?) of this is actually mentioned in the PEP:
> https://www.python.org/dev/peps/pep-0484/#type-comments

The question was about mixed containers, e.g.:
x = [12, "Jane"]
y = [13, "John", 99.9]

There first element is always int, second always str, and rest is variable.