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"""Check that raise ... from .. uses a proper exception context """
# pylint: disable=unreachable, import-error, multiple-imports
import socket, unknown
__revision__ = 0
class ExceptionSubclass(Exception):
""" subclass """
def test():
""" docstring """
raise IndexError from 1 # [bad-exception-context]
raise IndexError from None
raise IndexError from ZeroDivisionError
raise IndexError from object() # [bad-exception-context]
raise IndexError from ExceptionSubclass
raise IndexError from socket.error
raise IndexError() from None
raise IndexError() from ZeroDivisionError
raise IndexError() from ZeroDivisionError()
raise IndexError() from object() # [bad-exception-context]
raise IndexError() from unknown
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