在线等，挺急的！python sql 问题, 在sql里面用替代感激不尽

Question

period='573'SHYA=sqldf('selectPPMONTH,REGION,WEARSEG,sum(uncal_value)asuncal_value\fromFtablewhereregionin("Shanghai")andWEARSEGin("Men","Women")\andPPMONTHin(period)groupbyPPMONTH,WEARSEG')在sql里面用in(period')为什么没用？PandaSQLException:(sqlite3.OperationalError)nosuchcolumn:period[SQL:'selectPPMONTH,REGION,WEARSEG,sum(uncal_value)asuncal_value###题目描述题目来源及自己的思路相关代码//请把代码文本粘贴到下方（请勿用图片代替代码）你期待的结果是什么？实际看到的错误信息又是什么？

Answer 1

老铁,报错中说:nosuchcolumn:period意思是没有这一列,你是不是没有定义period呀？或者period是个字符串？你没用双引号？？或者你把数据贴出来,我看下
                            

Answer 2

SQL不能直接写period,要转成period对应的值字符串
'selectPPMONTH,REGION,WEARSEG,sum(uncal_value)asuncal_value\
fromFtablewhereregionin("Shanghai")andWEARSEGin("Men","Women")\
andPPMONTHin("{}")groupbyPPMONTH,WEARSEG'.format(period)