How to save attachment from outlook using win32com

问题:

Im trying to read email and download the attachment to my own folder using win32com module in Python, I stopped at getting the attachment object:

from win32com.client import Dispatch
import datetime as date

outlook = Dispatch("Outlook.Application").GetNamespace("MAPI")
inbox = outlook.GetDefaultFolder("6")
all_inbox = inbox.Items
val_date = date.date.today()

sub_today = 'Hi'
att_today = 'Attachment.xlsx'
for msg in all_inbox:
    if msg.Subject == sub_today:
        break

for att in msg.Attachments:
    if att.FileName == att_today:
        break

att.SaveAsFile('new.xlsx')
att.ExtractFile('new.xlsx')
open(att)    
att.WriteToFile('x')

None of the last 4 lines work...

>>> att.ExtractFile('new.xlsx')
raise AttributeError("%s.%s" % (self._username_, attr))
AttributeError: <unknown>.ExtractFile

>>> open(att) 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: coercing to Unicode: need string or buffer, instance found

>>> att.WriteToFile('x')
 raise AttributeError("%s.%s" % (self._username_, attr))
AttributeError: <unknown>.WriteToFile

att.SaveAsFile('new.xlsx') has no error, but there is no such file in the working directory. Seems that the line was just ignored...

Could anyone help? Thanks in advance!

回答1:

Just to update, I have solved this issue by claiming both dir and the file name itself in SaveAsFile:

att.SaveAsFile(os.getcwd() + '\\new.xlsx')

It is not like most threads I've seen here saying that you only need to put path in it. Actually both path and file name are needed.

Also, weirdly, you have to put os.getcwd() here since Python wouldn't recognize current running dir - in R, after we set working dir with getwd(), we are able to write to any file at this location.

Cheers,

回答2:

Where do you think the current working directory is? I'd say you are looking at the wrong folder, SaveAsFile in general works just fine.

Simply pass a full path to SaveAsFile, that should solve your problem.