python脚本批量生成50000条插入数据的sql语句

 f = open("xx.txt",'w')
 for i in range(1,50001):
     str_i = str(i)
     realname = "lxs"+str_i
     phone = 13678101715 + i
     email = "lxs" + str_i +"@126.com"
     sql = 'insert into table_a (realname,phone,email,sign,event_id) values ("'+realname+'",' +str(phone)+ ',"'+email+'",0,1);'
     f.write(sql)
     f.write("\n")
 print('50000 success!')
 f.close()