Steven D'Aprano <[email protected]> added the comment:
Please explain the bug here on the bug tracker, people shouldn't have to drill
down into the PR to find out what it means.
Before fixing the bug, you should find out whether or not it actually is a bug.
In my testing, the comment is approximately correct:
py> from random import random
py> d = dict((random(), None) for i in range(20))
py> sys.getsizeof(d)
432
py> while sys.getsizeof(d) == 432:
... d[random()] = None
...
py> sys.getsizeof(d)
816
That looks closer to double than triple to me. Try a larger dict:
py> for i in range(10000):
... d[random()] = None
...
py> sys.getsizeof(d)
196656
py> while sys.getsizeof(d) == 196656:
... d[random()] = None
...
py> sys.getsizeof(d)
393264
Still looks like double to me.
Unless an expert on the dict internals agrees with you, the comment is correct,
it is not a bug, and this issue should be closed.
----------
nosy: +steven.daprano
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<https://bugs.python.org/issue38637>
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