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29 lines
743 B
Python
29 lines
743 B
Python
from testutils import assertRaises
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assert '__builtins__' in globals()
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# assert type(__builtins__).__name__ == 'module'
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with assertRaises(AttributeError):
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__builtins__.__builtins__
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__builtins__.x = 'new'
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assert x == 'new'
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exec('assert "__builtins__" in globals()', dict())
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exec('assert __builtins__ == 7', {'__builtins__': 7})
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exec('assert not isinstance(__builtins__, dict)')
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exec('assert isinstance(__builtins__, dict)', {})
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namespace = {}
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exec('', namespace)
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assert namespace['__builtins__'] == __builtins__.__dict__
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# with assertRaises(NameError):
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# exec('print(__builtins__)', {'__builtins__': {}})
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# __builtins__ is deletable but names are alive
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del __builtins__
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with assertRaises(NameError):
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__builtins__
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assert print
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