I have try except block inside for loop. If error happened I want to send an email saying "Error", if not, I need to send an email saying "Success".
code example:
for file in files:
try:
if file.endswith('.csv'):
# converting source variable to str because shutil has some bugs
shutil.move(str(source) + "/" + file, dest_fs01 / current_year_folder / current_year_month_folder)
break
except Exception as e:
error = str(e)
I tried something like this, but if there is no error, the variable error will not be existing
for file in files:
try:
if file.endswith('.csv'):
# converting source variable to str because shutil has some bugs
shutil.move(str(source) + "/" + file, dest_fs01 / current_year_folder / current_year_month_folder)
break
except Exception as e:
error = str(e)
if len(error) > 0:
# sending email notifying about error
message4 = """From: <from#email.com>
To: <to#email.com>
Subject: Error
""" + error
smtpObj.sendmail(sender, receivers, message4)
else:
# sending email notifying about successful completion
message3 = """From: <from#email.com>
To: <to#email.com>
Subject: Success
Related
I create an email with the following.
def createGmailEmailNoAttachments(self, messageBody, subject, toEmail, fromEmail, html=False):
try:
newMessage = MIMEMultipart()
newMessage['to']=toEmail
newMessage['from'] = fromEmail
newMessage['subject'] = subject
if html:
msg= MIMEText(messageBody, 'html')
else:
msg= MIMEText(messageBody)
newMessage.attach(msg)
raw = base64.urlsafe_b64encode(newMessage.as_bytes())
raw = raw.decode()
body = {'raw': raw}
return body
except:
self.GLogger.error("An error was encountered while attempting to create gmail email")
tb = traceback.format_exc()
self.GLogger.exception(tb)
return False
I send an email with the following.
def gmailAPISendEmail(self, message, userID="me"):
try:
service = self.gmailAPIService
self.GLogger.info("Attempting to send email message")
request = service.users().messages().send(userId=userID, body=message)
response = self.executeGmailAPI_withretry(request)
if response is False:
return False
responseID = str(response['id'])
self.GLogger.info("Successfully sent email message with ID (" + responseID +")")
return responseID
except:
self.GLogger.error("Failed to send email message")
tb = traceback.format_exc()
self.GLogger.exception(tb)
return False
Where I execute the request in the function executeGmailAPI_withretry(request)
def executeGmailAPI_withretry(self, request, withHTTPObject = False):
try:
response_valid = False
num_retries = 0
while num_retries < 30:
try:
if withHTTPObject is True:
response = request.execute(http=self.http_toUse)
else:
response = request.execute()
response_valid = True
break
except socket.timeout:
num_retries = num_retries + 1
time.sleep(0.5*num_retries)
except:
self.GLogger.error("An error was encounrtered in executeGmailAPI_withretry")
try:
self.GLogger.error(f"The Method ID : {request.methodId}")
except:
pass
try:
self.GLogger.error(f"The uri : {request.uri}")
except:
pass
tb = traceback.format_exc()
self.GLogger.exception(tb)
num_retries = num_retries + 1
time.sleep(0.5*num_retries)
if response_valid is False:
self.GLogger.error(f"Could not resolve issue in 15 requests [{request}]")
return False
else:
return response
except:
self.GLogger.error("An error was encounrtered in executeGmailAPI_withretry")
tb = traceback.format_exc()
self.GLogger.exception(tb)
return False
The problem that I am encountering is as follows. Sometimes, when I want to send an email with these three functions, socket.timeout errors occur during execution of service.users().messages().send(userId=userID, body=message). My retry function will try to send it up to 30 times with some time delays in between. However, sometimes, when a socket.timeout error occurs, the email is still sent. This can result in several of the same emails being sent. From the code's perspective, only one email was sent, since service.users().messages().send(userId=userID, body=message) ran only once successfully without throwing an error.
So, for example, I had 4 identical emails being received, meaning that at least 3 send attempts had a socket.timeout errors in which Gmail actually did send the email and the 4th (or more) attempt executed without throwing the socket.timeout error.
Why does the Gmail API throw a socket.timeout error while sending an email, but still continue to send the email?
This creates a dilemma in the current situation.
If I handle the errors, then it ensures that emails that truly cannot be sent on the first try will be sent. However, it can result in multiple identical emails being sent, due to the false errors.
If I don't handle the error, then for certain, only one email at most will be sent. However, if the email truly cannot be sent, then it will certainly not be sent.
The ideal solution is that the Gmail API should only throw an error if the email truly cannot be sent.
You might want to try setting longer timeout for it to be in timeout mode. See socket.setdefaulttimeout(timeout).
This will force the script to wait until the specified timeout before raising a timeout exception. This way, you might be able to prevent premature timeout exceptions.
If it still doesn't work, maybe you could file it as a bug on issue tracker.
Reference:
socket.timeout with will cause api client to become unuseable
Socket Timeouts
I am trying to read otp from mail and after that I want to delete that email from gmail option. I have no problem in reading email but I am not able to delete mail. I tried some code from stackoverflow. below is my code.
def getOtpMail(vEmail, vPaasword):
connection = imaplib.IMAP4_SSL(IMAP_URL) # stablish connection with IMAP server
try:
connection.login(vEmail, vPaasword) # Login with userid password
except Exception as e:
print(e)
return
loopLock = True
while loopLock:
# fetch
connection.select('"INBOX"', readonly=True)
retCode, messages = connection.search(None, '(UNSEEN)')
print(messages[0])
latest = int(messages[0].split()[-1])
res, msg = connection.fetch(str(latest), "(RFC822)")
for response in msg:
if isinstance(response, tuple):
print('\n------------email--------------\n')
msg = email.message_from_bytes(response[1])
if SENDER_NAME in msg['From'] and KEYWORD in msg['Subject']:
loopLock = False
# fetch required information
for part in msg.walk():
body = part.get_payload()
word_list = body.split()
index = word_list.index('verification')
otp = word_list[index + 3].strip('.')
#delete mail - below two line not working
connection.store(str(latest), '+FLAGS', '"[Gmail]/Trash"')
print(connection.expunge())
return otp
else:
continue
I read documentation and print connection.expunge() so I got response as ('NO', [b'EXPUNGE attempt on READ-ONLY folder (Failure)']) . I think issue I have to establish connection in WRITE mode. I am not sure about it.
In this issue, I opened mail box in readonly mode. Hence my program not able to write and store in IMAP server.
I changed
connection.select('"INBOX"', readonly=True)
to
connection.select('"INBOX"', readonly=False)
also I changed command type and flag type in store method -
connection.store(str(latest), '+FLAGS', '"[Gmail]/Trash"')
to
connection.store(str(latest), '+FLAGS', '\\Deleted')
.
I wrote the script below to be able to connect to a remote server and get some data from the XML file. I added some error handling to be able to skip issues with some devices. For some reason whenever the script gets a 401 message back, it breaks the whole loop and I get the message "Could not properly read the csv file". I tried other ways of handling the exception and it would fail at other points. Any info on how to properly deal with this?
#!/usr/bin/python
import sys, re, csv, xmltodict
import requests, logging
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
def version(ip, username, password):
baseUrl = "https://" + ip
session = requests.Session()
session.verify = False
session.timeout = 45
print "Connecting to " + ip
try:
r = session.get(baseUrl + '/getxml?location=/Status', auth=(username, password))
r.raise_for_status()
except Exception as error:
print err
doc = xmltodict.parse(r.text)
version = str(doc['Status']['#version'])
def main():
try:
with open('list.csv', 'r') as file:
reader = csv.DictReader(file)
for row in reader:
version(row['ip'], row['Username'], row['Password'])
except Exception as error:
print ValueError("Could not properly read the csv file \r")
sys.exit(0)
if __name__ == "__main__":
main()
The doc and version variables in def version are outside the try: catch: so when r is None due to exception, the next 2 operations also fail, raising some uncaught exception. Which surfaces in main. Can you try including doc and version within the try: catch: and see if it works.
A related suggestion: catch specific exceptions as this helps know more about why your code crashed. ex. Response.raise_for_status() raises requests.exceptions.HTTPError. Catch that, raise all other exceptions. xml might raise something else, catch that, instead of catching ALL.
I own a shared hosting which can run anacrontab. I would like to run a python script when I receive an email on that server.
Is anacrontab enough?
Or would using a client such as Gmail be better?
import imapclient, pyzmail, html2text
def latestMail():
imapObj = imapclient.IMAPClient('imap.yourServer.com', ssl=False)
imapObj.login('imapUser', 'imapPass')
imapObj.select_folder('Inbox', readonly=False)
UIDs = imapObj.search(criteria='ALL', charset=None)
rawMessages = imapObj.fetch(UIDs[0], ['BODY[]', 'FLAGS'])
message = pyzmail.PyzMessage.factory(rawMessages[UIDs[0]]['BODY[]'])
return message
def parser(message):
if message.text_part is not None and message.html_part is not None:
multipart = True
else:
multipart = False
if message.text_part is not None:
try:
body = message.text_part.get_payload().decode(message.text_part.charset)
except TypeError:
body = message.text_part.get_payload()
if message.html_part is not None and multipart is False:
try:
body = html2text.html2text(message.html_part.get_payload().decode(message.html_part.charset))
except Exception:
raise Systemexit
return body
try:
message = latestMail()
clean = parser(message)
print clean
except IndexError:
print "No messages left"
raise os._exit(0)
except Exception as e:
print e
Crontab config:
HOME=/var/www/html/whatever
* * * * * root /var/www/html/whatever/myMailChecker.py
Conclusion:
This will call your imap servers' Inbox every minute and parse trough your mail and parse it's content, you can do whatever you want after like create a new entry in your mysql table with the mail content etc.. or run another script if clean is not None etc.
i have this code in python whoose purpose is to send a text file .c .txt (whatever, i've been sending a helloworld.c) through a websocket.
The problem is when i test it, the code doesn't go beyond print("I'm here!")
def onMessage_function(self, client_id, message):
print("Here's the message I received " + message + "\n\n\n")
dumpedMSG = json.dumps(message)
loadedMSG = json.loads(dumpedMSG)
if 'file_name' in loadedMSG:
print("I'm here!")
print(loadedMSG['file_name'])
else:
# do something else here.
Thank you!
It's hard to tell, but does this work?
def onMessage_function(self, client_id, message):
print("Here's the message I received " + message + "\n\n\n")
loadedMSG = json.loads(message)
if 'file_name' in loadedMSG:
print("I'm here!")
print(loadedMSG['file_name'])
else:
# do something else here.
In the original loadedMSG would be the same as message, so 'file_name' in loadedMSG would be a substring check rather than a check for a dictionary key. The print after "I'm here!" would then throw an exception, which you might not see if you're only receiving what is sent over the socket.