python 将图片转换为base64编码转储进数据库

# _*_ coding: utf-8 _*_
#中间件：拓展工具遍历文件夹，对文件夹图片进行base64编码，写入数据库，并且读取查找方法
__author__ = 'wf15038'
__date__ = "2018/8/28 18:38"

import pymysql
import sys
from datetime import datetime
import base64
import os


now = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
def dbinfo():
    conn = ""
    conn = pymysql.connect(host='ip地址', port=3505, user="数据库", password='密码', database='itportal',
                           charset='utf8',cursorclass =pymysql.cursors.DictCursor)
    cur = conn.cursor()
    if not cur:
        return "access db is fail!"
    else:
        return conn

local_dir = 'E:\xiugai\ico'
try:
    for root,dirs,files in os.walk(local_dir):
        for filepath in files:
            image_path = os.path.join(local_dir,filepath)
            imagename,_ = os.path.splitext(filepath)
            print(imagename)
            fp = open(image_path,'rb')
            base64_date = base64.b64encode(fp.read())
            fp.close()
            try:
                conn=dbinfo()
                conncur = conn.cursor()
                sql_insertimage="insert into soft_PT (softname,imstore,submittime) VALUE (%s, %s, %s) "
                conncur.execute(sql_insertimage, (imagename,base64_date,now))
                seatdic= conncur.fetchall()
                conn.commit()
                conn.close()

            except pymysql.Error as e :
                print("Error %d %s" % (e.args[0],e.args[1]))
                sys.exit(1)
except IOError as e:
    print("Error %d %s" % (e.args[0],e.args[1]))
    sys.exit(1)


try:
    conn = dbinfo()
    conncur = conn.cursor()
    sql_selectimage = "select imstore from soft_PT"
    conncur.execute(sql_selectimage)
    softpath = conncur.fetchall()
    softpathlist = [x['imstore'].decode('gbk') for x in softpath]
    print(softpathlist)
    for i in softpathlist:
        print(i)
    conn.commit()
    conn.close()

except pymysql.Error as e :
    print(e)
    sys.exit(1)