def fromkeys(cls, seq, v=None):
        """Override dict.fromkeys() to title-case keys."""

        return super(HeaderDict, cls).fromkeys(cls,
                                               [s.title() for s in seq], v)
def fromkeys ( cls , seq , v = None ) : return super ( HeaderDict , cls ) . fromkeys ( cls , [ s . title ( ) for s in seq ] , v )
Override dict.fromkeys() to title-case keys.