'Return a list of UIDs to not copy for this foldername.'

def get_copy_ignore_UIDs(self, foldername):

    if (self.copy_ignore_eval is None):
        if self.config.has_option(self.getsection(), 'copy_ignore_eval'):
            self.copy_ignore_eval = self.localeval.eval(self.getconf('copy_ignore_eval'))
        else:
            self.copy_ignore_eval = (lambda x: None)
    return self.copy_ignore_eval(foldername)
