On 18/02/2023 15:29, Thomas Passin wrote:
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.
Provided that you can provide a default value to get() which will never
be a genuine "result".
--
https://mail.python.org/mailman/listinfo/python-list
