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11.10.1 IMAP4 Objects

All IMAP4rev1 commands are represented by methods of the same name, either upper-case or lower-case.

All arguments to commands are converted to strings, except for "AUTHENTICATE", and the last argument to "APPEND" which is passed as an IMAP4 literal. If necessary (the string contains IMAP4 protocol-sensitive characters and isn't enclosed with either parentheses or double quotes) each string is quoted. However, the password argument to the "LOGIN" command is always quoted. If you want to avoid having an argument string quoted (eg: the flags argument to "STORE") then enclose the string in parentheses (eg: r'(\Deleted)').

Each command returns a tuple: (type, [data, ...]) where type is usually 'OK' or 'NO', and data is either the text from the command response, or mandated results from the command. Each data is either a string, or a tuple. If a tuple, then the first part is the header of the response, and the second part contains the data (ie: 'literal' value).

An IMAP4 instance has the following methods:

 
append( mailbox, flags, date_time, message)
Append message to named mailbox.
 
authenticate( func)
Authenticate command -- requires response processing. This is currently unimplemented, and raises an exception.
 
check( )
Checkpoint mailbox on server.
 
close( )
Close currently selected mailbox. Deleted messages are removed from writable mailbox. This is the recommended command before "LOGOUT".
 
copy( message_set, new_mailbox)
Copy message_set messages onto end of new_mailbox.
 
create( mailbox)
Create new mailbox named mailbox.
 
delete( mailbox)
Delete old mailbox named mailbox.
 
expunge( )
Permanently remove deleted items from selected mailbox. Generates an "EXPUNGE" response for each deleted message. Returned data contains a list of "EXPUNGE" message numbers in order received.
 
fetch( message_set, message_parts)
Fetch (parts of) messages. message_parts should be a string of message part names enclosed within parentheses, eg: ""(UID BODY[TEXT])"". Returned data are tuples of message part envelope and data.
 
getacl( mailbox)
Get the "ACL"s for mailbox. The method is non-standard, but is supported by the "Cyrus" server.
 
getquota( root)
Get the "quota" root's resource usage and limits. This method is part of the IMAP4 QUOTA extension defined in rfc2087. New in version 2.3.
 
getquotaroot( mailbox)
Get the list of "quota" "roots" for the named mailbox. This method is part of the IMAP4 QUOTA extension defined in rfc2087. New in version 2.3.
 
list( [directory[, pattern]])
List mailbox names in directory matching pattern. directory defaults to the top-level mail folder, and pattern defaults to match anything. Returned data contains a list of "LIST" responses.
 
login( user, password)
Identify the client using a plaintext password. The password will be quoted.
 
login_cram_md5( user, password)
Force use of "CRAM-MD5" authentication when identifying the client to protect the password. Will only work if the server "CAPABILITY" response includes the phrase "AUTH=CRAM-MD5". New in version 2.3.
 
logout( )
Shutdown connection to server. Returns server "BYE" response.
 
lsub( [directory[, pattern]])
List subscribed mailbox names in directory matching pattern. directory defaults to the top level directory and pattern defaults to match any mailbox. Returned data are tuples of message part envelope and data.
 
noop( )
Send "NOOP" to server.
 
open( host, port)
Opens socket to port at host. The connection objects established by this method will be used in the read, readline, send, and shutdown methods. You may override this method.
 
partial( message_num, message_part, start, length)
Fetch truncated part of a message. Returned data is a tuple of message part envelope and data.
 
proxyauth( user)
Assume authentication as user. Allows an authorised administrator to proxy into any user's mailbox. New in version 2.3.
 
read( size)
Reads size bytes from the remote server. You may override this method.
 
readline( )
Reads one line from the remote server. You may override this method.
 
recent( )
Prompt server for an update. Returned data is None if no new messages, else value of "RECENT" response.
 
rename( oldmailbox, newmailbox)
Rename mailbox named oldmailbox to newmailbox.
 
response( code)
Return data for response code if received, or None. Returns the given code, instead of the usual type.
 
search( charset, criterion[, ...])
Search mailbox for matching messages. Returned data contains a space separated list of matching message numbers. charset may be None, in which case no "CHARSET" will be specified in the request to the server. The IMAP protocol requires that at least one criterion be specified; an exception will be raised when the server returns an error.

Example:

# M is a connected IMAP4 instance...
msgnums = M.search(None, 'FROM', '"LDJ"')

# or:
msgnums = M.search(None, '(FROM "LDJ")')
 
select( [mailbox[, readonly]])
Select a mailbox. Returned data is the count of messages in mailbox ("EXISTS" response). The default mailbox is 'INBOX'. If the readonly flag is set, modifications to the mailbox are not allowed.
 
send( data)
Sends data to the remote server. You may override this method.
 
setacl( mailbox, who, what)
Set an "ACL" for mailbox. The method is non-standard, but is supported by the "Cyrus" server.
 
setquota( root, limits)
Set the "quota" root's resource limits. This method is part of the IMAP4 QUOTA extension defined in rfc2087. New in version 2.3.
 
shutdown( )
Close connection established in open. You may override this method.
 
socket( )
Returns socket instance used to connect to server.
 
sort( sort_criteria, charset, search_criterion[, ...])
The sort command is a variant of search with sorting semantics for the results. Returned data contains a space separated list of matching message numbers.

Sort has two arguments before the search_criterion argument(s); a parenthesized list of sort_criteria, and the searching charset. Note that unlike search, the searching charset argument is mandatory. There is also a uid sort command which corresponds to sort the way that uid search corresponds to search. The sort command first searches the mailbox for messages that match the given searching criteria using the charset argument for the interpretation of strings in the searching criteria. It then returns the numbers of matching messages.

This is an "IMAP4rev1" extension command.

 
status( mailbox, names)
Request named status conditions for mailbox.
 
store( message_set, command, flag_list)
Alters flag dispositions for messages in mailbox.
 
subscribe( mailbox)
Subscribe to new mailbox.
 
uid( command, arg[, ...])
Execute command args with messages identified by UID, rather than message number. Returns response appropriate to command. At least one argument must be supplied; if none are provided, the server will return an error and an exception will be raised.
 
unsubscribe( mailbox)
Unsubscribe from old mailbox.
 
xatom( name[, arg[, ...]])
Allow simple extension commands notified by server in "CAPABILITY" response.

Instances of IMAP4_SSL have just one additional method:

 
ssl( )
Returns SSLObject instance used for the secure connection with the server.

The following attributes are defined on instances of IMAP4:

PROTOCOL_VERSION
The most recent supported protocol in the "CAPABILITY" response from the server.

 

debug
Integer value to control debugging output. The initialize value is taken from the module variable Debug. Values greater than three trace each command.

  

 

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