[Python-ideas] Accepting "?" as a valid character for identifiers

[INADA Naoki]

> An other interesting postfix in the same line is "!" (for mutating methods).

bytearray is a mutable type but it's methods are designed for immutable bytes.
I think bytearray should provide in-place mutation method. And '!' is good for
the method. For example, bytearray.strip!() should be in-place.

-- 
INADA Naoki  <songofacandy at gmail.com>