copy on write

[Devin Jeanpierre]

On Fri, Jan 13, 2012 at 7:30 AM, Chris Angelico <rosuav at gmail.com> wrote:
> It seems there's a distinct difference between a+=b (in-place
> addition/concatenation) and a=a+b (always rebinding), which is sorely
> confusing to C programmers. But then, there's a lot about Python
> that's sorely confusing to C programmers.

I think this is confusing to just about everyone, when they first encounter it.

-- Devin