Iterate through data frame rows to send email
Question
I have a data frame that looks like this:
|num|data | email |
|-- | --- | --------------- |
|1 | x |user1@example.com|
|2 | y |user1@example.com|
|3 | z |user2@example.com|
I need to send the 'num', 'data', fields to the email in the 'email' column.
So for this dataframe, rows 1 and 2 would be sent to user1@example.com and row 3 would be sent to user2@example.com
My Idea is to create an 'sendemail' function with the following parameters: data, to_email
Then iterate through the data frame rows passing the parameters to the for-loop.
Here's where I am:
import pandas as pd
from tabulate import tabulate
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
# import data into df
df1 = pd.read_excel("data.xlsx")
# define email function
def sendemail(html, to_email):
fromaddr = "from@email.com"
toaddr = to_email
msg = MIMEMultipart("alternative")
msg["From"] = fromaddr
msg["To"] = to_email
msg["Subject"] = "new email"
msg.add_header("reply-to", "user@email.com")
body = MIMEText(html, "html")
msg.attach(body)
server = smtplib.SMTP("smtp.emailserver.com", 587)
server.starttls()
server.login(fromaddr, "pw")
text = msg.as_string()
server.sendmail(fromaddr, toaddr, text)
server.quit()
#iterate trough rows and send email
for row in df1.itertuples(index=False):
sendemail(df1.to_html(index=False), df1["email"])
I believe my error is passing the data into the for-loop. I am getting an error:
AttributeError: 'Series' object has no attribute 'encode'
Any assistance would be greatly appreciated!
2 answers
solution1
1 2021-03-15 18:57:20
Try to change your for loop to:
for row in df1.itertuples(index=False):
sendemail(df1.to_html(index=False), row.email)
Here, instead of passing df1['email'] as a pandas Series to the sendmail() function where it requires a string for the 2nd argument, you access the row value under column 'email' by the syntax row.email , which is now an element (a string, in particular) and can be used directly in your sendmail() function.
An alternative way to access row.email is getattr(row, "email")
solution2
0 2022-02-01 21:58:06
I used a different approach iterating through the email process to send it to each row level recipient. You can use a for loop and the zip() function to grab all necessary data. I used this on a relatively small data set and cannot speak to whether it performs well on large data sets.
for x,y,z,a in zip(fulldf['Employee Name'], fulldf['Store E-mail'], fulldf['E-mail'], fulldf['Date Hired']):
outlook = win32com.client.Dispatch('outlook.application')
mail = outlook.CreateItem(0)
mail.To = y
mail.CC = z
mail.Subject = 'Career Growth Conversation'
mail.HTMLBody = """\
<html>
<head></head>
<body>
<p>Congratulations – """+ x +" hire date: "+ a +""" is ready for a Career Growth Conversations!<br>
</p>
</body>
</html>
"""
mail.Attachments.Add(r"")
mail.Send()
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.