[Python-ideas] Method chaining notation

[Paul Moore]

On 24 February 2014 16:08, Ron Adam <ron3200 at gmail.com> wrote:
> By using the '.' we can see the difference

But the difference is precisely those bytecodes that are needed to
replicate the argument that's required because that's not what update
does. Show me the bytecode you propose for your proposed operator, and
how it's faster, and (assuming it's an improvement) explain why it
can't be achieved via bytecode optimisation of the existing code that
the compiler could be updated to do. Otherwise your "it's faster"
argument doesn't hold water.

As regards "it's a single expression", I still say that's purely a
style issue - Python doesn't place any emphasis on being able to write
things as a single expression (quite the opposite, in fact - complex
expressions are generally a sign of bad style in Python).

Paul