Python script to access a gmail account and download particular emails

gmail.py

import email, getpass, imaplib, os

detach_dir = '.' # directory where to save attachments (default: current)
user = raw_input("Enter your GMail username:")
pwd = getpass.getpass("Enter your password: ")

# connecting to the gmail imap server
m = imaplib.IMAP4_SSL("imap.gmail.com")
m.login(user,pwd)
m.select("cs2043") # here you a can choose a mail box like INBOX instead
# use m.list() to get all the mailboxes

resp, items = m.search(None, "ALL") # you could filter using the IMAP rules here (check http://www.example-code.com/csharp/imap-search-critera.asp)
items = items[0].split() # getting the mails id

for emailid in items:
    resp, data = m.fetch(emailid, "(RFC822)") # fetching the mail, "`(RFC822)`" means "get the whole stuff", but you can ask for headers only, etc
    email_body = data[0][1] # getting the mail content
    mail = email.message_from_string(email_body) # parsing the mail content to get a mail object

    #Check if any attachments at all
    if mail.get_content_maintype() != 'multipart':
        continue

    print "["+mail["From"]+"] :" + mail["Subject"]

    # we use walk to create a generator so we can iterate on the parts and forget about the recursive headach
    for part in mail.walk():
        # multipart are just containers, so we skip them
        if part.get_content_maintype() == 'multipart':
            continue

        # is this part an attachment ?
        if part.get('Content-Disposition') is None:
            continue

        #filename = part.get_filename()

        filename = mail["From"] + "_hw1answer"
        
        att_path = os.path.join(detach_dir, filename)

        #Check if its already there
        if not os.path.isfile(att_path) :
            # finally write the stuff
            fp = open(att_path, 'wb')
            fp.write(part.get_payload(decode=True))
            fp.close()

This helped me too . We need to enable less secure app access in accounts. Check below link for more info
https://support.google.com/accounts/answer/6010255

it asked for my user name, I provided user name and pressed enter. Then I entered my password. But nothing appeared after that. No error too. I copied same script from here. Please suggest

Can you communicate to exchange ideas at the expense of Facebook

I had an error while running this, about a 10,000 bytes limit using imaplib. It can be corrected adding this, right after the import:

imaplib._MAXLINE = 100000

why would this error show up?

python3 users replace line 19 by
mail = mail.message_from_bytes(email_body)

@alphaguy4 thanks for sharing the alternative

Hello, I am getting Subject and body in encoded format , start of subject is like :=?UTF-
can anyone help me out?

Re less-secure apps: you can also turn on two-factor auth and generate an app-specific password, which is a better option.

Thanks for your code,
For me it works with device password instead of regular user password
About alphaguy4 comment: there's a typo in your comment:

python3 users replace line 19 by
mail = email.message_from_bytes(email_body)

I am getting error in the below line
fp = open(att_path, 'wb')

error is as follows :
OSError: [Errno 22] Invalid argument: '.\Google [email protected]_hw1answer'

Hello Jason,

Thank you for the Python codes, but when I ran it, the program crashed.

I got the following error message:

---

Traceback (most recent call last):
File "C:\Users\Martin\Desktop\gmail2.py", line 13, in
resp, items = m.search(None, "ALL") # you could filter using the IMAP rules here (check http://www.example-code.com/csharp/imap-search-critera.asp)
File "C:\Python34\lib\imaplib.py", line 660, in search
typ, dat = self._simple_command(name, criteria)
File "C:\Python34\lib\imaplib.py", line 1133, in _simple_command
return self._command_complete(name, self._command(name, args))
File "C:\Python34\lib\imaplib.py", line 881, in _command
', '.join(Commands[name])))
imaplib.error: command SEARCH illegal in state AUTH, only allowed in states SELECTED

---

Could you please help. Thank you in advance.

Sincerely
CwlAust

Thanks for the code. I tweaked it to be more user-friendly and secure. If I want to share my version of the code while giving credits to you under this post, what is the best way to do that? I am a new user of GitHub and this my first github comment, and I don't know the policies to share different versions. :)

@amarmeena1992 you can fork this gist by using Fork button (present on the top right) and can put your modified version there

File "/usr/lib/python2.7/imaplib.py", line 507, in login
raise self.error(dat[-1])
imaplib.error: LOGIN failed. Account is blocked. Login to your account via a web browser to verify your identity.
why this error was getting

@ashuapple You Have to Enable IMAP Access in your Google Account.
See This Article : https://support.google.com/accounts/answer/6010255