python ValueError: unsupported format character ''' (0x27) at index 224
2017-07-10 16:42
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问题：将sql语句从mysql复制到python，报错 ValueError: unsupported format character ''' (0x27) at index 224
sql = "select concat(round(bid_rate*100,2),'%') as bid_rate from platform_bid_day where section BETWEEN '%s' and '%s' ORDER BY section " % (st,et)
解决：将%换成%%，如下
sql = "select concat(round(bid_rate*100,2),'%%') as bid_rate from platform_bid_day where section BETWEEN '%s' and '%s' ORDER BY section " % (st,et)
sql = "select concat(round(bid_rate*100,2),'%') as bid_rate from platform_bid_day where section BETWEEN '%s' and '%s' ORDER BY section " % (st,et)
解决：将%换成%%，如下
sql = "select concat(round(bid_rate*100,2),'%%') as bid_rate from platform_bid_day where section BETWEEN '%s' and '%s' ORDER BY section " % (st,et)
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