def scansion_prepare(self,meter=None,conscious=False):
		"""Print out header column for line-scansions for a given meter. """
		import prosodic
		config=prosodic.config

		if not meter:
			if not hasattr(self,'_Text__bestparses'): return
			x=getattr(self,'_Text__bestparses')
			if not x.keys(): return
			meter=x.keys()[0]

		ckeys="\t".join(sorted([str(x) for x in meter.constraints]))
		self.om("\t".join([makeminlength(str("text"),config['linelen']), makeminlength(str("parse"),config['linelen']),"meter","num_parses","num_viols","score_viols",ckeys]),conscious=conscious)
Print out header column for line-scansions for a given meter.