Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/lll.py @ 87690:66c1c9f32567 default tip

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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 fcfe324663a6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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fcfe324663a6 convert shebang lines: python -> python3
Benjamin Peterson <benjamin@python.org>
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1 #! /usr/bin/env python3
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Guido van Rossum <guido@python.org>
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2
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Guido van Rossum <guido@python.org>
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3 # Find symbolic links and show where they point to.
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Guido van Rossum <guido@python.org>
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4 # Arguments are directories to search; default is current directory.
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Guido van Rossum <guido@python.org>
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5 # No recursion.
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Guido van Rossum <guido@python.org>
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6 # (This is a totally different program from "findsymlinks.py"!)
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Guido van Rossum <guido@python.org>
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7
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Guido van Rossum <guido@python.org>
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8 import sys, os
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9
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Guido van Rossum <guido@python.org>
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10 def lll(dirname):
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Tim Peters <tim.peters@gmail.com>
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11 for name in os.listdir(dirname):
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Tim Peters <tim.peters@gmail.com>
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12 if name not in (os.curdir, os.pardir):
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Tim Peters <tim.peters@gmail.com>
parents: 4573
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13 full = os.path.join(dirname, name)
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Tim Peters <tim.peters@gmail.com>
parents: 4573
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14 if os.path.islink(full):
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Collin Winter <collinw@gmail.com>
parents: 33076
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15 print(name, '->', os.readlink(full))
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Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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16 def main():
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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17 args = sys.argv[1:]
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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18 if not args: args = [os.curdir]
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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19 first = 1
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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20 for arg in args:
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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21 if len(args) > 1:
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Collin Winter <collinw@gmail.com>
parents: 33076
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22 if not first: print()
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981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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23 first = 0
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Collin Winter <collinw@gmail.com>
parents: 33076
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24 print(arg + ':')
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Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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25 lll(arg)
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Guido van Rossum <guido@python.org>
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26
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Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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27 if __name__ == '__main__':
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 15930
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28 main()