__doc__ = u"""

>>> a

2

>>> b

3

>>> exc[0].__class__.__name__

'AttributeError'

>>> exc[1].__class__.__name__

'KeyError'

>>> exc[2].__class__.__name__

'IndexError'

>>> exc[3].__class__.__name__

'ValueError'

>>> exc[3] is val

True

>>> except_as_deletes   # Py2 behaviour

False

>>> no_match_does_not_touch_target

True

"""

a = 0

try:

    raise KeyError

except AttributeError:

    a = 1

except KeyError:

    a = 2

except:

    a = 3

b = 0

try:

    raise IndexError

except AttributeError:

    b = 1

except KeyError:

    b = 2

except:

    b = 3

exc = [None]*4

try:

    raise AttributeError

except AttributeError as e:

    exc[0] = e

except KeyError       as e:

    exc[0] = e

except IndexError     as e:

    exc[0] = e

except:

    exc[0] = 'SOMETHING ELSE'

e = None

try:

    raise KeyError

except AttributeError as e:

    exc[1] = e

except KeyError       as e:

    exc[1] = e

except IndexError     as e:

    exc[1] = e

except:

    exc[1] = 'SOMETHING ELSE'

try:

    e

except NameError:

    except_as_deletes = True

else:

    except_as_deletes = False

e = 123

try:

    raise TypeError

except NameError as e:

    pass

except TypeError:

    pass

no_match_does_not_touch_target = (e == 123)

try:

    raise IndexError

except AttributeError as e:

    exc[2] = e

except KeyError       as e:

    exc[2] = e

except IndexError     as e:

    exc[2] = e

except:

    exc[2] = 'SOMETHING ELSE'

val = None

try:

    try:

        try:

            raise ValueError

        except AttributeError as e:

            exc[3] = e

        except KeyError       as e:

            exc[3] = e

        except IndexError     as e:

            exc[3] = e

        except:

            raise

    except (AttributeError,

            KeyError,

            IndexError,

            ValueError) as e:

        val = e

        raise e

except Exception as e:

    exc[3] = e