python批量提取eml附件

import email
import os
import sys #获取eml附件信息
def Get_Annex_Message(FilePath, Annex_Path):
global sum
try:
fp = open(FilePath, 'rb') #打开任意格式文件，通过email库来判断是否为eml文件
msg = email.message_from_binary_file(fp)
for part in msg.walk(): #循环信件中的每一个mime的数据块
if part.get_content_maintype() == 'multipart':
continue
Annex_name = part.get_filename()
if Annex_name: #如果附件存在名字
Annex_name = str(sum) + '.' + Annex_name
fp = open(os.path.join(Annex_Path, Annex_name), 'wb')
fp.write(part.get_payload(decode=True))
sum += 1 except Exception as e:
print(e)
return #递归文件夹下所有文件
def List_Filepath(Eml_Path, Annex_Path):
for parent,dirnames,filenames in os.walk(Eml_Path): #遍历文件夹
for dirname in dirnames: #对文件夹进行递归
List_Filepath(dirname, Annex_Path)
for filename in filenames: #r对文件进行判断
FilePath = os.path.join(parent,filename)
Get_Annex_Message(FilePath, Annex_Path) #创建目的文件夹
def Create_Dir(Annex_Path):
if os.path.exists(Annex_Path):
print("dir exists, Annex file will create in %s" % Annex_Path)
else:
os.mkdir(Annex_Path) #主函数
def main():
global sum
sum = int(1)
Eml_Path = sys.argv[1] #第一个参数为eml所在文件夹
Annex_Path = sys.argv[2] #第二个参数为eml附件输出的路径
Create_Dir(Annex_Path) #创建保存附加的文件夹
List_Filepath(Eml_Path, Annex_Path) if __name__ == "__main__":
main()