This implicit exception chain can be made explicit by using :keyword:`from`
with :keyword:`raise`. The single argument to :keyword:`from` must be an
-exception or :const:`None`, and it will bet set as :attr:`__cause__` on the
+exception or :const:`None`, and it will be set as :attr:`__cause__` on the
raised exception. If :attr:`__cause__` is an exception it will be displayed
instead of :attr:`__context__`; if :attr:`__cause__` is None,
:attr:`__context__` will not be displayed by the default exception handling