[Python-Dev] About [].append == [].append (original) (raw)

Guido van Rossum guido at python.org
Fri Jun 22 14:44:07 EDT 2018


On Fri, Jun 22, 2018 at 9:43 AM Steven D'Aprano <steve at pearwood.info> wrote:

On Fri, Jun 22, 2018 at 08:13:44AM -0700, Guido van Rossum wrote:

> Honestly it looks to me like the status quo is perfect. Does this example work for you? py> (17.1).hex == (17.1).hex True But: py> a = 17.1 py> b = 17.1 py> a.hex == b.hex False I know why it happens -- at the REPL, the interpreter uses the same object for both 17.1 instances when they're part of the same statement, but not when they're on separate lines. I just don't know whether this is desirable or not.

But there's nothing new about that example. It's just the same as the issue that sometimes 1 is 1 and sometimes it isn't.

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