New submission from Milton Mobley:

d, i = {}, 0
while (i < 10000000):
    n =  i + 1
    d[n] = n
    i += 1

On Py 2.7.5 (windows7, x64, 4GB ram) this program slowed down obviously after 
passing 1,000,000 adds and never completed or raised an exception.
Windows performance monitor showed it was only claiming about 1 MB memory per 
second, and stopped claiming more memory at about 646MB. The only other large 
memory consumer in the system was JRE using about 550 MB on behalf of Eclipse.

----------
components: Interpreter Core
messages: 201705
nosy: miltmobley
priority: normal
severity: normal
status: open
title: add to dict fails after 1,000,000 items on py 2.7.5
type: behavior
versions: Python 2.7

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue19443>
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