Add a test for fix of issue #17098
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@ -4,6 +4,7 @@ import importlib
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from importlib import machinery
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import sys
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from test import support
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import types
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import unittest
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@ -175,12 +176,22 @@ class FrozenImportlibTests(unittest.TestCase):
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machinery.FrozenImporter))
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class StartupTests(unittest.TestCase):
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def test_everyone_has___loader__(self):
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# Issue #17098: all modules should have __loader__ defined.
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for name, module in sys.modules.items():
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if isinstance(module, types.ModuleType):
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self.assertTrue(hasattr(module, '__loader__'),
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'{!r} lacks a __loader__ attribute'.format(name))
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def test_main():
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from test.support import run_unittest
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run_unittest(ImportModuleTests,
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FindLoaderTests,
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InvalidateCacheTests,
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FrozenImportlibTests)
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FrozenImportlibTests,
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StartupTests)
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if __name__ == '__main__':
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