[Python-ideas] The name Ellipsis should be a constant

31 May 2021


      In Python `...` is referred to as `Ellipsis` and cannot be assigned to.
Yet, one can assign any value to the name `Ellipsis`.
Consider the following:
```
...
...
...
...
Ellipsis
...
...
...
... == Ellipsis
True
...
...
...
Ellipsis
Ellipsis
...
...
...
Ellipsis = 3
Ellipsis
3
...
...
...
... = 4
File "<stdin>", line 1
    ... = 4
    ^
SyntaxError: cannot assign to Ellipsis
...
...
...
# But I just did assign a new value to the name Ellipsis above.
Ellipsis
3
...
...
...
...
Ellipsis
...
...
...
... == Ellipsis
False
```
For consistency, `Ellipsis` (the name) should **always** refer to the same
object that `...` refers to, so that both could not be assigned a new value.
André Roberge