Mercurial > cpython-lru_cache-weakref

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 6a6b1ee306e3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
87051
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1 #/usr/bin/env python3
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2 """
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3 Checks that the version of the projects bundled in ensurepip are the latest
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4 versions available.
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5 """
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6 import ensurepip
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7 import json
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8 import urllib.request
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9 import sys
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10
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11
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12 def main():
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13 outofdate = False
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14
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15 for project, version in ensurepip._PROJECTS:
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16 data = json.loads(urllib.request.urlopen(
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17 "https://pypi.python.org/pypi/{}/json".format(project),
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18 cadefault=True,
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19 ).read().decode("utf8"))
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20 upstream_version = data["info"]["version"]
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21
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22 if version != upstream_version:
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23 outofdate = True
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24 print("The latest version of {} on PyPI is {}, but ensurepip "
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25 "has {}".format(project, upstream_version, version))
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26
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27 if outofdate:
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28 sys.exit(1)
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29
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30
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31 if __name__ == "__main__":
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32 main()