"1,+2,", but not "(1,)+2,"

[Python]

Stefan Ram wrote:
> Jon Ribbens <jon+usenet at unequivocal.eu> writes:
>> On 2020-07-31, Stefan Ram <ram at zedat.fu-berlin.de> wrote:
>>>    You can write
>>> |>>> 1,+2,
>>> |(1, 2)
>>>    , but not
>>> |>>> (1,)+2,
>>> |TypeError: can only concatenate tuple (not "int") to tuple
>>>    . Why? (Python 3.9)
>> For the obvious reason, as indicated by the error message?
>> What are you expecting these expressions to mean?
> 
>    In »1,+2,«, the right operand »2,« obviously is interpreted
>    to be a 1-tuple.

Nope. The right operant is 2 not 2, and is interpreted as an int.