Python 如何将MYSQL Latin-1 GEOMETRY字段转换为UTF8以使其与Django一起工作？

尝试将字段强制转换回自身会引发以下错误

UPDATE <table> SET geo_field = CONVERT(CAST(CONVERT(geo_field USING latin1) AS BINARY) USING utf8); 

[Err] 1416 - Cannot get geometry object from data you send to the GEOMETRY field

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我卡住了。任何帮助都将不胜感激

路径字段设置了不正确的模型类型

path=models.PolygonField（）

工作得很有魅力

def convert_latin_uft8(badfields, table, host, user, passwd, db ):
    import MySQLdb
    con = MySQLdb.connect(host=host, user=user, passwd=passwd, db=db)
    cur = con.cursor()
    cur.execute("SELECT * FROM `{0}`;".format(table))
    for item in cur.fetchall():
        for field in badfields:
            data =item[field].decode('latin1').encode('utf8')
            print data