[Python-Dev] Replacement for print in Python 3.0 (original) (raw)

Barry Warsaw barry at python.org
Mon Sep 5 04:07:18 CEST 2005

On Sat, 2005-09-03 at 22:08, Nick Coghlan wrote:

> See a (very quick and very dirty ;) strawman that I just posted to the > wiki. I think this has some interesting semantics, including the > ability to control the separator inline in a C++-like fashion. The > writef() version also accepts string.Templates or %s-strings as its > first argument. I'm not sure I like reserving 'to' and 'nl' keyword > arguments, and not having the ability to print Separator instances > directly, but OTOH maybe those aren't big deals.

The latter problem is easily solved by calling str() at the point of the call so that write() never sees the actual Separator object.

Good point.

However, this 'inline' behaviour modification has always annoyed me in C++ - if you want this kind of control over the formatting, a format string is significantly clearer.

You're probably right about that.

Separating the formatting out into a separate functions like this addresses your concern with the namespace conflict for 'to' and 'nl', and also makes the 'format' builtin more generally useful, as it can be used for cases other than direct output to a stream.

The downside being that you have to type more to get the behavior you want. It does have the advantage of solving the namespace problem.

-Barry

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