The interesting thing is how chained assignment is implemented. In C, the
following is an expression, and has a value:
a = b
This leads to the compiler not being helpful for the famous =/== typo in
this like:
if (a = b) { ... }
In python the only expression in:
a = b = c
only has one expression: c
The rest is syntax for the assignment statement, where trailing =
identifies each of the targets to which the value of c is to be assigned.
An assignment statement begins with a series of one or more target
specifiers and ends with a single expression.
(Targets can be more complex, e.g.; x, y = p = 0, 0)
On Wed, Feb 17, 2016 at 7:28 PM, Nikolas Stevenson-Molnar <
[email protected]> wrote:
> The term is "chained assignment" (applied to other languages as well).
>
>
> https://en.wikipedia.org/wiki/Assignment_(computer_science)#Chained_assignment
>
> _Nik
>
> On Tuesday, February 16, 2016 at 12:06:10 PM UTC-8, anotherdjangonewby
> wrote:
>>
>> Hi,
>>
>> this may be a bit off-topic, but:
>>
>> How are expressions like:
>>
>> var1 = var2 = var3
>>
>> called Python. Without a hint I cannot goolge this.
>>
>> Thanks
>>
>> Kai
>>
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