从电子邮件文本中解析"发件人"地址

我正在尝试从电子邮件的纯文本脚本中提取电子邮件地址.我拼凑了一些代码来查找地址本身,但我不知道如何区分它们; 现在它只是吐出文件中的所有电子邮件地址.我想这样做它只会吐出前面有"From:"和一些通配符的地址,并以">"结尾(因为电子邮件设置为From [name] <[email]> ).

这是现在的代码:

import re #allows program to use regular expressions
foundemail = []
#this is an empty list

mailsrch = re.compile(r'[\w\-][\w\-\.]+@[\w\-][\w\-\.]+[a-zA-Z]{1,4}')
 #do not currently know exact meaning of this expression but assuming
 #it means something like "[stuff]@[stuff][stuff1-4 letters]"

        # "line" is a variable is set to a single line read from the file
# ("text.txt"):
for line in open("text.txt"):

    foundemail.extend(mailsrch.findall(line))

    # this extends the previously named list via the "mailsrch" variable
      #which was named before

print foundemail

Van Gale.. 36

试试这个:

>>> from email.utils import parseaddr

>>> parseaddr('From: vg@m.com')
('', 'vg@m.com')

>>> parseaddr('From: Van Gale ')
('Van Gale', 'vg@m.com')

>>> parseaddr('    From: Van Gale    ')
('Van Gale', 'vg@m.com')

>>> parseaddr('blah abdf    From: Van Gale    and this')
('Van Gale', 'vg@m.com')

不幸的是,它只找到每行中的第一封电子邮件,因为它期待标题行,但也许这没关系？

试试这个:

>>> from email.utils import parseaddr

>>> parseaddr('From: vg@m.com')
('', 'vg@m.com')

>>> parseaddr('From: Van Gale ')
('Van Gale', 'vg@m.com')

>>> parseaddr('    From: Van Gale    ')
('Van Gale', 'vg@m.com')

>>> parseaddr('blah abdf    From: Van Gale    and this')
('Van Gale', 'vg@m.com')

不幸的是,它只找到每行中的第一封电子邮件,因为它期待标题行,但也许这没关系？

import email
msg = email.message_from_string(str)

# or
# f = open(file)
# msg = email.message_from_file(f)

msg['from']

# and optionally
from email.utils import parseaddr
addr = parseaddr(msg['from'])