[Python-Dev] PEP 428: Pathlib -> stat caching (original) (raw)
Stephen J. Turnbull stephen at xemacs.org
Tue Sep 17 02:34:39 CEST 2013
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Terry Reedy writes:
On 9/16/2013 4:14 PM, R. David Murray wrote:
Well, we tend to avoid single boolean arguments in favor of differently named functions.
The stdlib has lots of boolean arguments. My impression is that they are to be avoided when they would change the return type or otherwise do something disjointly different. I do not think this would apply here.
I remember reading that the criterion is whether the argument is most often given a literal value. Then "stat_cache()" is preferable to "stat(cache=True)". OTOH, "stat(cache=want_cache)" is better than
if want_cache:
result = stat_cache()
else:
result = stat()or "result = stat_cache() if want_cache else stat()".
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