[Python-3000] A request to keep dict.setdefault() in 3.0 (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Tue Jul 10 03:16:20 CEST 2007


Phillip J. Eby wrote:

However, there is another class of use cases which use setdefault for its limited atomic properties - the initialization of non-mutated data structures that are shared among threads.

Isn't it rather dangerous to rely on any built-in Python operations to be atomic? They might happen to be, but I don't think there's any guarantee they will stay that way.

-- Greg



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