使用 Python 从 Outlook 下载同名文件时出现问题。文件夹中只显示一个文件

Question

from datetime import date
import os
import email

import win32com.client
import pathlib
import glob
import re
from pathlib import Path

path = os.path.expanduser(file_location + "/" +date_file)
 
outlook = win32com.client.Dispatch("Outlook.Application").GetNamespace("MAPI")
inbox = outlook.GetDefaultFolder(6)  #from inbox
inbox = inbox.Folders['folder 1'] #Folder inside Inbox Folder

today = datetime.date.today()        #from todays date
received_dt = date.today() - timedelta(days=1)

messages = inbox.Items          

def saveattachments():                                                  # subject= subject line t0 be inserted here. 
    for message in messages:                   
        if message.Unread:# and message.Senton.date() == today: 
            for attachment in message.Attachments:
                print(attachment.FileName)                                     # shows the file name to be downloaded
                attachment.SaveAsFile(os.path.join(path, str(attachment)))     #saves it the desired location
                if message.Unread:
                    message.Unread = False                                         #returns the email to read status
                
                
saveattachments()

我想下载未读邮件中的所有文件。但是同名文件被替换了，只显示一个文件名。

示例-

Files from outlook	filename which gets saved on desk folder
a_file	a_file
b_file	b_file
c_file	c_file
a_file	d_file
b_file
b_file
a_file
b_file
c_file
d_file

Answer 1

这是意料之中的行为。 There can be only one 特定文件夹中具有特定名称的文件。您将需要实现一些逻辑来查看文件是否已经存在，然后重命名它。

下面是一个简单的例子：

import os


def autorename(filename):
    """recursive function to add " (copy)" to a filename if it already exists.
    """
    if os.path.isfile(filename):
        newfilename = f"{os.path.splitext(filename)[0]} (copy){os.path.splitext(filename)[1]}"
        return autorename(newfilename)
    else:
        return filename

关于 os.path.splitext() 部分，请参阅 this answer。

编辑

要将此添加到您的代码中，您需要更改此行：

attachment.SaveAsFile(os.path.join(path, str(attachment)))

对此：

attachment.SaveAsFile(autorename(os.path.join(path, str(attachment))))

所以如果文件已经存在它会生成一个新的文件名

使用 Python 从 Outlook 下载同名文件时出现问题。文件夹中只显示一个文件

Having issue with downloading files with same name from outlook using Python. Only one file is showing on folder

python

outlook

file

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