'Extract a member file to the specified destination'

def extract_file(self, member, destination):

    try:
        with self.open(member) as source:
            with open(destination, u'wb') as target:
                shutil.copyfileobj(source, target)
    except (IOError, os.error) as error:
        raise FSError(error)
    log.verbose(u'Extracted:    %s', member)
