我正在编写一个程序,以便可以轻松地将电子邮件发送给人员列表,并向每个收件人发送一个唯一的文件。该程序以.csv文件的形式读取列表,其中包含每个收件人的姓,名,电子邮件地址和各自的附件,使用模板自定义具有收件人姓名的每封电子邮件,并附加其文件。 / p>
代码可以在下面看到。我在主题行和电子邮件地址中使用了占位符,并隐藏了电子邮件的实际文本,但是您应该可以理解。 email_data变量是包含收件人信息的.csv文件最初加载到的位置。
import csv
import datetime
import sys
import smtplib
import yagmail
import tkinter as tk
from tkinter import filedialog
from tkinter import simpledialog
root = tk.Tk()
root.withdraw()
password = simpledialog.askstring("Password", "Enter password:", show='*')
current_date = datetime.datetime.now()
subject_line = f'xyz {current_date.strftime("%B")} {current_date.year} xyz File'
LNAMES = []
FNAMES = []
EMAILS = []
FILES = []
yag = yagmail.SMTP('xyz@xyx.com', password)
email_data = filedialog.askopenfilename(filetypes=[('.csv', '.csv')],
title='Select the Email Data file')
def send_email():
with open(email_data) as csv_file:
csv_reader = csv.reader(csv_file, delimiter=',')
line_count = 0
for row in csv_reader:
last_name = row[0]
first_name = row[1]
email = row[2]
file = row[3]
LNAMES.append(last_name)
FNAMES.append(first_name)
EMAILS.append(email)
FILES.append(file)
line_count += 1
try:
for first_name, last_name, email, file in zip(FNAMES, LNAMES, EMAILS, FILES):
txt = '...'
yag.send(to=email,
subject=subject_line,
contents=[txt, file])
print("Email(s) sent successfully")
input("Press Enter to exit")
sys.exit(1)
except smtplib.SMTPAuthenticationError:
print("Incorrect Email password entered")
input("Press Enter to exit")
sys.exit(1)
send_email()
我遇到的问题是,如果列出的文件不在工作目录中,则在电子邮件的底部发送一段带有“ file.xlsx”之类的文本的电子邮件,而不是实际的附件。如果找不到该文件,是否有一种引发异常的方法,因此电子邮件发送时不带任何真实附件?
答案 0 :(得分:0)
您可以编写自己的异常:
class EmailAttachmentNotFoundException(Exception):
pass
,然后在附加文件的代码中:(为清楚起见,删除了其余代码):
def send_email():
with open(email_data) as csv_file:
csv_reader = csv.reader(csv_file, delimiter=',')
line_count = 0
for row in csv_reader:
last_name = row[0]
first_name = row[1]
email = row[2]
file = row[3]
if not os.isfile(file):
raise EmailAttachmentNotFoundException('Could not find file {} Aborting!!!!'.format(file))
LNAMES.append(last_name)
FNAMES.append(first_name)
EMAILS.append(email)
FILES.append(file)
line_count += 1
如果要捕获它:
try:
send_email()
except EmailAttachmentNotFoundException as e:
# Modify the way the exception is raised and how it is captured, but this is the most basic way of getting what is inside
print(str(e))
“找不到文件myfile.txt正在终止!!!”
答案 1 :(得分:0)
或者,如果您不希望发生异常,则可以跳过该行:
with open(email_data) as csv_file:
csv_reader = csv.reader(csv_file, delimiter=',')
line_count = 0
for row in csv_reader:
last_name = row[0]
first_name = row[1]
email = row[2]
file = row[3]
if not os.isfile(file):
continue # <-----
LNAMES.append(last_name)
FNAMES.append(first_name)
EMAILS.append(email)
FILES.append(file)
line_count += 1
continue
将跳过其余代码,并返回到for
循环。如果您想查看哪些反馈不存在,可以在continue
上方添加一条打印语句。
答案 2 :(得分:0)
使用
import os
if os.path.exists(file_path):
do_someting()
else:
raise SOME_ERROR()
查看文件是否存在。