On 2/18/2023 5:38 AM, Albert-Jan Roskam wrote:
I sometimes use this trick, which I learnt from a book by Martelli.
Instead of try/except, membership testing with "in" (__contains__) might
be faster. Probably "depends". Matter of measuring.
def somefunc(arg, _cache={}):
if len(_cache) > 10 ** 5:
_cache.pop()
try:
return _cache[arg]
except KeyError:
result = expensivefunc(arg)
_cache[arg] = result
return result
Albert-Jan
_cache.get(arg) should be a little faster and use slightly fewer
resources than the try/except.
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