Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_importlib/source/test_path_hook.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 b0f570aef6fd
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 from .. import util
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2 from . import util as source_util
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3
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4 machinery = util.import_importlib('importlib.machinery')
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6 import unittest
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9 class PathHookTest:
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11 """Test the path hook for source."""
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13 def path_hook(self):
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14 return self.machinery.FileFinder.path_hook((self.machinery.SourceFileLoader,
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15 self.machinery.SOURCE_SUFFIXES))
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17 def test_success(self):
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18 with source_util.create_modules('dummy') as mapping:
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19 self.assertTrue(hasattr(self.path_hook()(mapping['.root']),
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20 'find_module'))
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21
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22 def test_empty_string(self):
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23 # The empty string represents the cwd.
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24 self.assertTrue(hasattr(self.path_hook()(''), 'find_module'))
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26 Frozen_PathHookTest, Source_PathHooktest = util.test_both(PathHookTest, machinery=machinery)
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29 if __name__ == '__main__':
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30 unittest.main()