提取指定字符串后面的值----Python正则表达式

例如：从log文件中解析出shippingSn的值

import re
str1 = 'shippingSn="8SSB27A74907L5HF11M00GA" mac="5405DB7CD282" dock_mac="5405DB7CD283" UUID="79AB03CEF59F4CBBB99A5405DB7CD282" model="G46ZD_A" partno="45M1TUM7A04"'
regex = '(?<=shippingSn=").[a-zA-z0-9_]*'
str_select = re.findall(regex, str1)
print(str_select)