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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 maildaemon package
Step1:  reading configuration
Step2:  connecting, retrieving/sending messages
Step3:  1and1
Step4:  Gmail
Step5:  iTSCOM
Step6:  WIP
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Python Code:
import maildaemon
Explanation: maildaemon package
End of explanation
cfg = maildaemon.load_config()
connections = cfg['connections']
Explanation: reading configuration
End of explanation
from maildaemon.imap_daemon import IMAPDaemon
from maildaemon.smtp_connection import SMTPConnection
from maildaemon.pop_daemon import POPDaemon
Explanation: connecting, retrieving/sending messages
End of explanation
one_and_one_imap = IMAPDaemon.from_dict(connections['1and1-imap'])
one_and_one_imap.connect()
one_and_one_imap.retrieve_folders_with_flags()
one_and_one_imap.retrieve_messages([1, 2, 3])
one_and_one_imap.disconnect()
one_and_one_smtp = SMTPConnection.from_dict(connections['1and1-smtp'])
#one_and_one_pop = POPDaemon.from_dict(connections['1and1-pop'])
one_and_one_smtp.connect()
#one_and_one_pop.connect()
one_and_one_smtp.disconnect()
#one_and_one_pop.disconnect()
Explanation: 1and1
End of explanation
gmail_imap = IMAPDaemon.from_dict(connections['gmail-imap'])
gmail_imap.connect()
gmail_imap.retrieve_folders_with_flags()
gmail_imap.open_folder()
gmail_imap.open_folder('[Gmail]/Sent Mail')
gmail_imap.open_folder('[Gmail]/All Mail')
gmail_imap.retrieve_message_ids()
gmail_imap.retrieve_message_parts(1, ['UID', 'FLAGS'])
gmail_imap.retrieve_messages_parts(range(1,100), ['ENVELOPE'], '[Gmail]/All Mail')
gmail_imap.retrieve_messages_parts(range(1,100), ['ENVELOPE'])
message_parts = gmail_imap.retrieve_message_parts(10, ['ENVELOPE'])
message_parts
gmail_imap.move_messages([10], '[Gmail]/Important')
def enable(self):
    self._link.enable('MOVE')
enable(gmail_imap)
message = gmail_imap.retrieve_message(1)
message
gmail_imap.disconnect()
gmail_smtp = SMTPConnection.from_dict(connections['gmail-smtp'])
gmail_smtp.connect()
gmail_smtp.disconnect()
Explanation: Gmail
End of explanation
#itscom_smtp = SMTPConnection.from_dict(connections['itscom-smtp'])
itscom_pop = POPDaemon.from_dict(connections['itscom-pop'])
itscom_pop.connect()
itscom_pop.retrieve_message_ids()
itscom_pop.disconnect()
Explanation: iTSCOM
End of explanation
import email
envelope, body = message_parts
email_message = email.message_from_bytes(body) # type: email.message.Message
print(email_message.as_string())
email_message
email_message.defects
parser = email.parser.BytesParser()
msg = parser.parsebytes(body, headersonly=False)
print(msg.as_string())
msg.items() == email_message.items()
Explanation: WIP: special handling of Gmail
WIP: running daemon to maintain connections automatically
WIP: filtering messages
email, email.message and email.parser packages
https://docs.python.org/3/library/email.html
https://docs.python.org/3/library/email.message.html
https://docs.python.org/3/library/email.parser.html
End of explanation
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