Most of the discussion so far has been focused on (?.). Tbh though, I'm more
interested in (??) and (??=). Just reading through code, I constantly notice
boilerplate like this which could easily be substituted.
variable = some_function(...)
if variable is None:
variable = [] # some default value
# a bit better with an assignment expression
if (variable := some_function(...)) is None:
variable = []
# or worse with an if expression
variable = some_function(...) if some_function(...) else []
# also possible with :=, but not much better
variable = x if (x := some_function(...)) else []
# using the coalesce operator would be much more readable IMO
variable = some_function(...) ?? []
If (?.) and (?[) are rejected / deferred, maybe there is interest in seeing at
least (??) and (??=) through?
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