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 0b1a8f56117a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # line 1
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2 def wrap(foo=None):
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3 def wrapper(func):
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4 return func
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5 return wrapper
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7 # line 7
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8 def replace(func):
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9 def insteadfunc():
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10 print('hello')
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11 return insteadfunc
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13 # line 13
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14 @wrap()
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15 @wrap(wrap)
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16 def wrapped():
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17 pass
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19 # line 19
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20 @replace
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21 def gone():
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22 pass
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24 # line 24
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25 oll = lambda m: m
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27 # line 27
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28 tll = lambda g: g and \
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29 g and \
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30 g
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32 # line 32
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33 tlli = lambda d: d and \
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34 d
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36 # line 36
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37 def onelinefunc(): pass
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39 # line 39
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40 def manyargs(arg1, arg2,
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41 arg3, arg4): pass
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43 # line 43
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44 def twolinefunc(m): return m and \
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45 m
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47 # line 47
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48 a = [None,
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49 lambda x: x,
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50 None]
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51
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52 # line 52
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53 def setfunc(func):
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54 globals()["anonymous"] = func
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55 setfunc(lambda x, y: x*y)
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57 # line 57
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58 def with_comment(): # hello
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59 world
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61 # line 61
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62 multiline_sig = [
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63 lambda x, \
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64 y: x+y,
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65 None,
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66 ]
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68 # line 68
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69 def func69():
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70 class cls70:
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71 def func71():
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72 pass
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73 return cls70
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74 extra74 = 74
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76 # line 76
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77 def func77(): pass
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78 (extra78, stuff78) = 'xy'
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79 extra79 = 'stop'
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80
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81 # line 81
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82 class cls82:
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83 def func83(): pass
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84 (extra84, stuff84) = 'xy'
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85 extra85 = 'stop'
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86
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87 # line 87
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88 def func88():
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89 # comment
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90 return 90
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92 # line 92
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93 def f():
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94 class X:
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95 def g():
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96 "doc"
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97 return 42
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98 return X
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99 method_in_dynamic_class = f().g
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101 #line 101
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102 def keyworded(*arg1, arg2=1):
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103 pass
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104
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105 #line 105
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106 def annotated(arg1: list):
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107 pass
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108
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109 #line 109
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110 def keyword_only_arg(*, arg):
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111 pass