Develop Reference

PYTHON: Sending email with an attachment that updates every 15 minutes

Below is a section of my code, it is in a while true loop to collect CO2 and Temperature readings from sensors every 15 minutes. It exports the data to a new CSV file every 15 minutes. The file name changes every 15 minutes as there is a date and time stamp required in the file name.
Can python be used to send an email with the CSV file attached if the file name is constantly changing?
I found the example below the dashed line online but the file location would be changing every 15 minutes in my case
for device in list_of_devices:
print (device)
for url_CO2 in list_of_urls_CO2:
headers = CaseInsensitiveDict()
headers['Accept'] = 'application/json'
headers['Authorization'] = bearer_token
resp_CO2 = requests.get(url_CO2, headers=headers)
response_CO2.append(resp_CO2.text)
print(resp_CO2.text)
for url_RT in list_of_urls_RT:
headers = CaseInsensitiveDict()
headers['Accept'] = 'application/json'
headers['Authorization'] = bearer_token
resp_RT = requests.get(url_RT, headers=headers)
response_RT.append(resp_RT.text)
print(resp_RT.text)
# importing pandas as pd
import pandas as pd
# dictionary of lists
myDict = {'Device': list_of_devices, 'CO2 Level': response_CO2, 'Room Temperature': response_RT}
df = pd.DataFrame(myDict)
# saving the dataframe
df.to_csv('test_{}.csv'.format(datetime.now().strftime("%Y-%m-%d %H.%M.%S")), index=False)
----------------------------------------------------------------------------------------
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email import encoders
import os.path
email = 'myaddress#gmail.com'
password = 'password'
send_to_email = 'sentoaddreess#gmail.com'
subject = 'Town Farm Data Log'
message = 'Please see attached CO2 levels and Room Temperatures for Town Farm Classrooms'
file_location = 'C:\\Users\\You\\Desktop\\attach.txt'
msg = MIMEMultipart()
msg['From'] = email
msg['To'] = send_to_email
msg['Subject'] = subject
msg.attach(MIMEText(message, 'plain'))
filename = os.path.basename(file_location)
attachment = open(file_location, "rb")
part = MIMEBase('application', 'octet-stream')
part.set_payload((attachment).read())
encoders.encode_base64(part)
part.add_header('Content-Disposition', "attachment; filename= %s" % filename)
msg.attach(part)
server = smtplib.SMTP('smtp.gmail.com', 587)
server.starttls()
server.login(email, password)
text = msg.as_string()
server.sendmail(email, send_to_email, text)
server.quit()

If you don't need to keep your files after send, it's easy to do like this:
Put your sending email code into the function named send_by_email for example
Then just collect all the files in the target dir, filter only csv-s and send them one by one (don't forget to delete file after send not to get into eternal loop on next iteration)
import os
mypath = '/tmp' # define path to dir with your files
filenames = next(os.walk(mypath), (None, None, []))[2] # list all files
csvs = [f for f in filenames if f.endswith('.csv')] # fileter only .scv files
for filename in csvs:
file_with_path = os.path.join(mypath, filename)
send_by_email(file_with_path)
os.remove(file_with_path)
If you need to keep files, you can just move them into another dir instead of deleting.

Sending single email with 3 different attachments python 3

I'm just looking to send an email with 3 csv file attachments. When i get it to run, trying a solution i found on here, it gives me a BIN file instead of the 3 files. Or, trying another solution, it will only send the last of the the 3 files. When i run the code below, its gives me TypeError: add.header() takes 3 positional arguments but 4 were given.
I understand that it can be done with a function, but i'm not sure how to have it pull all three files into it. I've spent numerous hours trying to figure it out.
Posting it on here is my last resort. I appreciate any help in finding a solution.
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
import time
import os
msg = MIMEMultipart()
msg['From'] = EMAIL_FROM
msg['To'] = ", ".join(RECIPIENT_LIST)
msg['Subject'] = 'Louisiana Contractors List'
#email content
message = """<html>
<body>
Attached is the Louisiana Contractors Spreadsheet.
<br><br>
Let me know if you have any questions
</body>
</html>
"""
msg.attach(MIMEText(message, 'html'))
files = [
'C:/Users/rkrouse/Downloads/search-results.csv',
'C:/Users/rkrouse/Downloads/search-results(1).csv',
'C:/Users/rkrouse/Downloads/search-results(2).csv']
for a_file in files:
attachment = open(a_file, 'rb')
part = MIMEBase('application','octet-stream')
part.set_payload((attachment).read())
part.add_header('Content-Disposition', 'attachment', a_file = os.path.basename('C:/Users/rkrouse/Downloads/search-results.csv'))
encoders.encode_base64(part)
msg.attach(part)
for a_file in files:
attachment = open(a_file, 'rb')
part = MIMEBase('application','octet-stream')
part.set_payload((attachment).read())
part.add_header('Content-Disposition', 'attachment', a_file = os.path.basename('C:/Users/rkrouse/Downloads/search-results(1).csv'))
encoders.encode_base64(part)
msg.attach(part)
for a_file in files:
attachment = open(a_file, 'rb')
part = MIMEBase('application','octet-stream')
part.set_payload(attachment.read())
part.add_header('Content-Disposition', 'attachment', a_file = os.path.basename('C:/Users/rkrouse/Downloads/search-results(2).csv'))
encoders.encode_base64(part)
msg.attach(part)
#sends email
smtpserver = smtplib.SMTP(EMAIL_SERVER, EMAIL_PORT)
smtpserver.sendmail(EMAIL_FROM, RECIPIENT_LIST, msg.as_string())
smtpserver.quit()

Updated tested solution:
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
import time
import os
msg = MIMEMultipart()
msg['From'] = EMAIL_FROM
msg['To'] = ", ".join(RECIPIENT_LIST)
msg['Subject'] = 'Louisiana Contractors List'
#email content
message = """<html>
<body>
Attached is the Louisiana Contractors Spreadsheet.
<br><br>
Let me know if you have any questions
</body>
</html>
"""
msg.attach(MIMEText(message, 'html'))
files = [
'C:/Users/rkrouse/Downloads/search-results.csv',
'C:/Users/rkrouse/Downloads/search-results(1).csv',
'C:/Users/rkrouse/Downloads/search-results(2).csv']
for a_file in files:
attachment = open(a_file, 'rb')
file_name = os.path.basename(a_file)
part = MIMEBase('application','octet-stream')
part.set_payload(attachment.read())
part.add_header('Content-Disposition',
'attachment',
filename=file_name)
encoders.encode_base64(part)
msg.attach(part)
#sends email
smtpserver = smtplib.SMTP(EMAIL_SERVER, EMAIL_PORT)
smtpserver.sendmail(EMAIL_FROM, RECIPIENT_LIST, msg.as_string())
smtpserver.quit()
As you can see you need to specify the filename in the base64 encoding.
Also you are iterating the files three time.
A for loop is used to go through a list, set, array, etc. One for loop (as all attachments are in one list) should be enough.

Following is the simple snippet that I used to send an email to multiple people with multiple file attachments.
# -*- coding: utf-8 -*-
import smtplib
import mimetypes
from email.mime.multipart import MIMEMultipart
from email import encoders
from email.mime.audio import MIMEAudio
from email.mime.base import MIMEBase
from email.mime.image import MIMEImage
from email.mime.text import MIMEText
import ntpath
sender_address = 'vijay.anand#xxxx.com'
default_subject = 'Test email from {}'.format(sender_address)
smtp_server_address = '10.111.41.25'
smtp_port_number = 25
default_message = message = """<html>
<body>
Attached is the Louisiana Contractors Spreadsheet.
<br><br>
Let me know if you have any questions
</body>
</html>
"""
def send_by_smtp(to=None, cc=None, bcc=None, subject=None, attachments=None, attachment_type='plain'):
"""
Snippet to send an email to multiple people along with multiple attachments.
:param to: list of emails
:param cc: list of emails
:param bcc: list of emails
:param subject: Email Subject
:param attachments: list of file paths
:param attachment_type: 'plain' or 'html'
:return: None
"""
email_from = sender_address
email_to = list()
files_to_send = attachments
msg = MIMEMultipart()
msg["From"] = email_from
if to:
to = list(set(to))
email_to += to
msg["To"] = ', '.join(to)
if cc:
cc = list(set(cc))
email_to += cc
msg["Cc"] = ', '.join(cc)
if bcc:
bcc = list(set(bcc))
email_to += bcc
msg["Bcc"] = ', '.join(bcc)
if subject:
msg["Subject"] = subject
msg.preamble = subject
else:
msg["Subject"] = default_subject
msg.preamble = default_subject
body = default_message
msg.attach(MIMEText(body, attachment_type))
if files_to_send:
for file_to_send in files_to_send:
content_type, encoding = mimetypes.guess_type(file_to_send)
if content_type is None or encoding is not None:
content_type = "application/octet-stream"
maintype, subtype = content_type.split("/", 1)
if maintype == "text":
with open(file_to_send) as fp:
# Note: we should handle calculating the charset
attachment = MIMEText(fp.read(), _subtype=subtype)
elif maintype == "image":
with open(file_to_send, "rb") as fp:
attachment = MIMEImage(fp.read(), _subtype=subtype)
elif maintype == "audio":
with open(file_to_send, "rb")as fp:
attachment = MIMEAudio(fp.read(), _subtype=subtype)
else:
with open(file_to_send, "rb") as fp:
attachment = MIMEBase(maintype, subtype)
attachment.set_payload(fp.read())
encoders.encode_base64(attachment)
attachment.add_header("Content-Disposition", "attachment", filename=ntpath.basename(file_to_send))
msg.attach(attachment)
try:
smtp_obj = smtplib.SMTP(host=smtp_server_address, port=smtp_port_number, timeout=300)
smtp_obj.sendmail(from_addr=email_from, to_addrs=list(set([email_from] + email_to)), msg=msg.as_string())
print("Successfully sent email to {}".format(str(email_to)))
smtp_obj.quit()
return True
except smtplib.SMTPException:
print("Error: unable to send email")
return False
if __name__ == '__main__':
print('Send an email using Python')
result = send_by_smtp(to=['vijay#xxxx.com', 'tha#xxx.com'],
cc=['anandp#xxxx.com', 'nitha#xxxx.com'],
bcc=['vij#xxxx.com', 'Sun#xxxx.com'],
subject='Louisiana Contractors List',
attachments=['test.txt', '1.JPG', '2.PNG', '3.PNG', '4.PNG'],
attachment_type='html')
if result:
print('Email Sent Successfully')
else:
print('Email Sending Failed')

how to send email with Excel file （xlsx）attachment in Python

I need to send a email with Excel attachment。
my code is like below ， it is ok to send the email ，
but when I received the email， the attachment file is not Excel files~~
it seems that the wrong format I have attached~~~
I have add different email address to receive this email，
but they were all received the unknown format files
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import os
import datetime
import sys
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.header import Header
from email.mime.base import MIMEBase
from email import encoders
mail_host = "mysever" # 设置服务器
mail_user = "me" # 用户名
mail_pass = "me123" # 口令
EMAILHOME = u'F:\Workfiles\weekreport\\forupdate'
sender = 'me#gmail.com'
receivers = ['aaaaaa#qq.com'] # 接收邮件，可设置为你的QQ邮箱或者其他邮箱
def getReceiverlist(filename):
lif = open(filename)
li = lif.readlines()
lif.close()
for x in range(len(li)):
li[x] = li[x].strip(os.linesep)
while '' in li:
li.remove('')
return li
def aisendmail():
ret = True
try:
message = MIMEMultipart()
message['From'] = Header("myname", 'utf-8')
message['To'] = Header("youname", 'utf-8')
message.attach(MIMEText('weekreport', 'plain', 'utf-8')) # 三个参数：第一个为文本内容，第二个 plain 设置文本格式，第三个 utf-8 设置编码
subject = 'myname-weekreport'
message['Subject'] = Header(subject, 'utf-8')
att1 = MIMEBase('application', "octet-stream")
att1.set_payload(open(u"F:\Workfiles\weekreport\\forupdate\myname_weekreport_20170821.xlsx",'rb').read())
encoders.encode_base64(att1)
att1.add_header('Content-Disposition', 'attachment; filename="myname-weekreport"')
message.attach(att1)
if os.path.exists(EMAILHOME + r'\receivers.txt'):
receiverslist = getReceiverlist(EMAILHOME + r'\receivers.txt')
print("receicerlist include:", receiverslist)
if len(receiverslist) == 0:
print"no receiver!!!"
receiverslist = receivers
else:
receiverslist = receivers
server = smtplib.SMTP()
server.connect(mail_host, 25) # 发件人邮箱中的SMTP服务器，端口是25
server.login(mail_user, mail_pass) # 括号中对应的是发件人邮箱账号、邮箱密码
server.sendmail(sender, receiverslist, message.as_string()) # 括号中对应的是发件人邮箱账号、收件人邮箱账号、发送邮件
server.quit() # 关闭连接
except smtplib.SMTPException: # 如果 try 中的语句没有执行，则会执行下面的 ret=False
ret = False
return ret
result = aisendmail()
if result:
print "邮件发送成功"
else:
print "Error: 无法发送邮件"
I follow different ways to add excel attachment as below: but they were all failed(it means it could not receive excel format file)
Method 1:
att1 = MIMEBase('application', 'octet-stream') #'octet-stream': binary data
att1.set_payload(open(file, 'rb').read())
encoders.encode_base64(att1)
att1.add_header('Content-Disposition', 'attachment; filename="%s"' % os.path.basename(file))
msg.attach(att1)
Result：
received a unknown format file
Method 2：
with open(u"F:\Workfiles\周报\\forupdate\xxx_周报_20170821.xlsx", "rb") as fil:
part = MIMEApplication(
fil.read(),
Name=basename(u"F:\Workfiles\周报\\forupdate\xxx_周报_20170821.xlsx")
)
part['Content-Disposition'] = 'attachment; filename="%s"' % basename(u"F:\Workfiles\周报\\forupdate\xxx_周报_20170821.xlsx")
message.attach(part)
Result：
received a bin format file
Method 3：
att1 = MIMEApplication(open('foo.xlsx','rb').read())
att1.add_header('Content-Disposition', 'attachment', filename="foo.xlsx")
msg.attach(att1)
Result:
receive a unknown format file

Try this code to add the attachment:
with open(f, "rb") as fil:
part = MIMEApplication(
fil.read(),
Name=basename(f)
)
part['Content-Disposition'] = 'attachment; filename="%s"' % basename(f)
msg.attach(part)

I was trying to send a body formatted in HTML, and add an excel file as an attachment - this took me ages to figure out, so best thought I should share my solution!
from email.message import EmailMessage
msg = EmailMessage()
msg['Subject'] = 'This is my subject line'
msg['To'] = xxxxx#xmail.com
msg['From'] = yyyyy#ymail.com
msg.add_alternative(f"""\
<!DOCTYPE html>
<html>
<body>
<h3>This is my message!</h3>
</body>
</html>""",
subtype='html')
with open('MyExcelFile.xlsx', 'rb') as fh:
attachment = fh.read()
msg.add_related(attachment, maintype='application', subtype='xlsx', filename='MyExcelFile.xlsx')
with smtplib.SMTP_SSL(host='smtp.gmail.com', port=465) as smtp:
smtp.login('obviouslyfake#gmail.com', 'WhoDoYouThinkIAm')
smtp.send_message(msg)

Python Email table from MYSQL

I am trying to get the results of a MYSQL query into the body of an email and also as a csv or xls attachment.
My code below works and sends the email only problem is if the results from the MYSQL query are more than a row only the first row shows up in the email.
import smtplib
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
from email import Encoders
import os
import MySQLdb
import string
import datetime
import time
today = (time.strftime("%m/%d/%Y"))
#print today
db = MySQLdb.connect(host="-----.com", # your host, usually localhost
user="----", # your username
passwd="-------", # your password
db="dailies") # name of the data base
cursor49=db.cursor()
cursor49.execute("SELECT PLACEMENT_NAME FROM dailies.pub_cpm join placement ON placement.PLACEMENT_id = pub_cpm.PLACEMENT_ID where date(pub_cpm.created) = date(now())")
results49 = cursor49.fetchone()
# Commit your changes in the database
db.commit()
# disconnect from server
db.close()
results50 = "Latest Pub CPM Name(s): %s" % (results49)
gmail_user = "------#gmail.com"
gmail_pwd = "g---a"
mailServer = smtplib.SMTP("smtp.gmail.com", 587)
to = ['-----#g-----']
msg = MIMEMultipart()
msg['From'] = gmail_user
msg['To'] = ", ".join(to)
msg['Subject'] = "Database Alerts: %s" % (today)
body = results50
msg.attach(MIMEText(body, 'plain'))
mailServer.ehlo()
mailServer.starttls()
mailServer.ehlo()
text = msg.as_string()
mailServer.login(gmail_user, gmail_pwd)
mailServer.sendmail(gmail_user, to, text)
# Should be mailServer.quit(), but that crashes...
mailServer.close()

There are a couple changes you need to make. First, you need to change your fetchone() call to a fetchall() call. This will return all results from your SELECT query.
Next, you want to write these to a CSV file. Let's do that using the results from our query above:
results49 = cursor.fetchall()
fp = open('/tmp/file_name.csv', 'w') # You pick a name, it's temporary
attach_file = csv.writer(fp)
attach_file.writerows(results49)
fp.close()
At this point, you have a file in /tmp/file_name.csv (or what ever path and name you picked) that contains your CSV results. The final step is to attach this to an email.
msg = MIMEMultipart()
msg['From'] = gmail_user
msg['To'] = ", ".join(to)
msg['Subject'] = "Database Alerts: %s" % (today)
body = results50
part = MIMEBase('application', "octet-stream")
part.set_payload(open("/tmp/file_name.csv", "rb").read()) # This is the same file name from above
Encoders.encode_base64(part)
part.add_header('Content-Disposition', 'attachment; filename="/tmp/file_name.csv"')
msg.attach(part)
I changed your msg.attach() function and utilized code from another question.
Once this is done, you still have a file in /tmp/file_name.csv. You can delete this safely at this point.

Email multiple recipients Python

I'm trying to email multiple recipients using the pyton script below. I've searched the forum for answers, but have not been able to implement any of them correctly. If anyone has a moment to review my script and spot/resolve the problem it would be greatly appreciated.
Here's my script, I gather my issue is in the 'sendmail' portion, but can't figure out how to fix it:
gmail_user = "sender#email.com"
gmail_pwd = "sender_password"
recipients = ['recipient1#email.com','recipient2#email.com']
def mail(to, subject, text, attach):
msg = MIMEMultipart()
msg['From'] = gmail_user
msg['To'] = ", ".join(recipients)
msg['Subject'] = subject
msg.attach(MIMEText(text))
part = MIMEBase('application', 'octet-stream')
part.set_payload(open(attach, 'rb').read())
Encoders.encode_base64(part)
part.add_header('Content-Disposition',
'attachment; filename="%s"' % os.path.basename(attach))
msg.attach(part)
mailServer = smtplib.SMTP("smtp.gmail.com", 587)
mailServer.ehlo()
mailServer.starttls()
mailServer.ehlo()
mailServer.login(gmail_user, gmail_pwd)
mailServer.sendmail(gmail_user, to, msg.as_string())
mailServer.close()
mail("recipient1#email.com, recipient2#email.com",
"Subject",
"Message",
"attchachment")
Any insight would be greatly appreciated.
Best,
Matt

It should be more like
mail(["recipient1#email.com", "recipient2#email.com"],
"Subject",
"Message",
"attchachment")
You already have a array of recipients declared,that too globally,You can use that without passing it as an argument to mail.

I wrote this bit of code to do exactly what you want. If you find a bug let me know (I've tested it and it works):
import email as em
import smtplib as smtp
import os
ENDPOINTS = {KEY: 'value#domain.com'}
class BoxWriter(object):
def __init__(self):
pass
def dispatch(self, files, box_target, additional_targets=None, email_subject=None, body='New figures'):
"""
Send an email to multiple recipients
:param files: list of files to send--requires full path
:param box_target: Relevant entry ENDPOINTS dict
:param additional_targets: other addresses to send the same email
:param email_subject: optional title for email
"""
destination = ENDPOINTS.get(box_target, None)
if destination is None:
raise Exception('Target folder on Box does not exist')
recipients = [destination]
if additional_targets is not None:
recipients.extend(additional_targets)
subject = 'Updating files'
if email_subject is not None:
subject = email_subject
message = em.MIMEMultipart.MIMEMultipart()
message['From'] = 'user#domain.com'
message['To'] = ', '.join(recipients)
message['Date'] = em.Utils.formatdate(localtime=True)
message['Subject'] = subject
message.attach(em.MIMEText.MIMEText(body + '\n' +'Contents: \n{0}'.format('\n'.join(files))))
for f in files:
base = em.MIMEBase.MIMEBase('application', "octet-stream")
base.set_payload(open(f, 'rb').read())
em.Encoders.encode_base64(base)
base.add_header('Content-Disposition', 'attachment; filename={0}'.format(os.path.basename(f)))
message.attach(base)
conn = smtp.SMTP('smtp.gmail.com', 587)
un = 'user#gmail.com'
pw = 'test1234'
conn.starttls()
conn.login(un, pw)
conn.sendmail('user#domain.com', recipients, message.as_string())
conn.close()

I was facing the same issue, I fixed this issue now. Here is my code -
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
import smtplib
import datetime
def sendMail():
message = MIMEMultipart()
message["To"] = "xxxxx#xxxx.com,yyyy#yyyy.com"
message["Cc"] = "zzzzzz#gmail.com,*********#gmail.com"
message["From"] = "xxxxxxxx#gmail.com"
message["Password"] = "***************"
server = 'smtp.gmail.com:587'
try:
now = datetime.datetime.now()
message['Subject'] = "cxxdRL Table status (Super Important Message) - "+str(now)
server = smtplib.SMTP(server)
server.ehlo()
server.starttls()
server.login(message["From"], message["Password"])
server.sendmail(message["From"], message["To"].split(",") + message["Cc"].split(","), message.as_string())
server.quit()
print('Mail sent')
except:
print('Something went wrong...')
sendMail()