Is print thread safe?
Cameron Simpson
cs at zip.com.au
Mon Aug 11 17:53:11 EDT 2014
On 12Aug2014 02:07, Steven D'Aprano <steve+comp.lang.python at pearwood.info> wrote:
>INADA Naoki wrote:
>
>> On Python 3, print is thread safe.
>> But Python 2 has broken scenario:
>
>Is this documented somewhere?
In python/2.7.6/reference/simple_stmts.html#index-22, "print" is described in
terms of a "write" for each object, and a "write" for the separators. There is
no mention of locking.
On that basis, I would find the interleaving described normal and expected. And
certainly not "broken".
Just use a lock! And rebind "print"! Or use the logging system!
Cheers,
Cameron Simpson <cs at zip.com.au>
Wow! Yet another place that I've been quoted...
- Andy Beals <bandy at cinnamon.com>
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