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eBdT CdUdSd ZDe
eBdV ZEe,eBd ZFe;dWGeAe>> from nntplib import NNTP
>>> s = NNTP('news')
>>> resp, count, first, last, name = s.group('comp.lang.python')
>>> print('Group', name, 'has', count, 'articles, range', first, 'to', last)
Group comp.lang.python has 51 articles, range 5770 to 5821
>>> resp, subs = s.xhdr('subject', '{0}-{1}'.format(first, last))
>>> resp = s.quit()
>>>
Here 'resp' is the server response line.
Error responses are turned into exceptions.
To post an article from a file:
>>> f = open(filename, 'rb') # file containing article, including header
>>> resp = s.post(f)
>>>
For descriptions of all methods, read the comments in the code below.
Note that all arguments and return values representing article numbers
are strings, not numbers, since they are rarely used for calculations.
NFT)
decode_header)_GLOBAL_DEFAULT_TIMEOUT)NNTP NNTPErrorNNTPReplyErrorNNTPTemporaryErrorNNTPPermanentErrorNNTPProtocolError
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rN c C s |du r | dd }| dd } t |dd }t |dd }t |dd }t | dd }t | dd }t | dd }|dk r|d7 }n|d k r|d
7 }t||||||S ) zParse a pair of (date, time) strings, and return a datetime object.
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d| }| j}|r<|d }d|| }n d|| }||fS )aP Format a date or datetime object as a pair of (date, time) strings
in the format required by the NEWNEWS and NEWGROUPS commands. If a
date object is passed, the time is assumed to be midnight (00h00).
The returned representation depends on the legacy flag:
* if legacy is False (the default):
date has the YYYYMMDD format and time the HHMMSS format
* if legacy is True:
date has the YYMMDD format and time the HHMMSS format.
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Z000000z({0.hour:02d}{0.minute:02d}{0.second:02d}rT z {0:02d}{1.month:02d}{1.day:02d}z {0:04d}{1.month:02d}{1.day:02d})r- rU formatrX )ZdtZlegacyrW yrV r r r _unparse_datetime s
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- host: hostname to connect to
- port: port to connect to (default the standard NNTP port)
- user: username to authenticate with
- password: password to use with username
- readermode: if true, send 'mode reader' command after
connecting.
- usenetrc: allow loading username and password from ~/.netrc file
if not specified explicitly
- timeout: timeout (in seconds) used for socket connections
readermode is sometimes necessary if you are connecting to an
NNTP server on the local machine and intend to call
reader-specific commands, such as `group'. If you get
unexpected NNTPPermanentErrors, you might need to set
readermode.
Nrwb) hostport_create_socketr^ filemakefile
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readermodeusenetrctimeoutr r r r 8 s
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NNTP.__init__c C s^ d| _ | | _d| _| d| _|rNd| jvrN| | jsNd| _| d| _d| _dS )z~Partial initialization for the NNTP protocol.
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zNNTP._base_initc C s | S Nr r r r r __enter__} s zNNTP.__enter__c s^ fdd}| rZz6z W n ttfy6 Y n0 W | rZ n| rX 0 d S )Nc s
t dS )Nrf )hasattrr r{ r r z NNTP.__exit__..)quitOSErrorEOFError_close)r r Z is_connectedr r{ r __exit__ s
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NNTP.__exit__c C s< |d ur|st dtd| | j| j t| j| jf|S )Nz0Non-blocking socket (timeout=0) is not supportedznntplib.connect)
ValueErrorsysauditrc rd socketZcreate_connection)r ro r r r re s zNNTP._create_socketc C s | j rtdt| j | jS )zGet the welcome message from the server
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if it 201, posting is not allowed.z *welcome*)rq printreprrs r{ r r r
getwelcome s zNNTP.getwelcomec C s | j du r~d| _d| _z| \}}W n ttfyB i | _ Y n<0 || _ d|v rfttt|d | _d|v r~d |d | _| j S )zGet the server capabilities, as read by __init__().
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returned.Nr5 ZVERSIONZIMPLEMENTATION )
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zNNTP.getcapabilitiesc C s
|| _ dS )zSet the debugging level. Argument 'level' means:
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NNTP._putlinec C s2 | j rtdt| || j| j}| | dS )zkInternal: send one command to the server (through _putline()).
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zNNTP._longcmdstringc C s` z| j W S ty Y n0 z| d\}}W n tyL tdd }Y n
0 t|}|| _ |S )zqInternal: get the overview format. Queries the server if not
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_grouplist? s zNNTP._grouplistc C s8 i }| d\}}|D ]}| ^}}|||< q||fS )a! Process a CAPABILITIES command. Not supported by all servers.
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zNNTP.capabilities)rf c C sb t |tjtjfs$td|jjt|| jdk \}}d||}| ||\}}||
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r- rU r r rZ r r r\ r r )r r$ r rf rV rW r r r r newnewsa s z NNTP.newnewsc C s4 |durd| }nd}| ||\}}|| |fS )a@ Process a LIST or LIST ACTIVE command. Arguments:
- group_pattern: a pattern indicating which groups to query
- file: Filename string or file object to store the result in
Returns:
- resp: server response if successful
- list: list of (group, last, first, flag) (strings)
Nz LIST ACTIVE ZLIST)r r )r
group_patternrf commandr r! r r r r q s
z NNTP.listc C s t d}| d| \}}|ds8| d| \}}i }|D ]:}|| }|r@|dd\} }
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|| < q@|r||fS dS d S )Nz ^(?P[^ ]+)[ ]+(.*)$zLIST NEWSGROUPS r zXGTITLE r5 rO r+ )recompiler rG searchstripr$ ) r r Z
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zNNTP._getdescriptionsc C s | |dS )a Get a description for a single group. If more than one
group matches ('group' is a pattern), return the first. If no
group matches, return an empty string.
This elides the response code from the server, since it can
only be '215' or '285' (for xgtitle) anyway. If the response
code is needed, use the 'descriptions' method.
NOTE: This neither checks for a wildcard in 'group' nor does
it check whether the group actually exists.Fr )r r$ r r r description s zNNTP.descriptionc C s | |dS )z'Get descriptions for a range of groups.Tr )r r r r r descriptions s zNNTP.descriptionsc C s | d| }|ds t|| }d } }}t|}|dkr|d }|dkr|d }|dkr|d }|dkr|d }|t|t|t||fS )a Process a GROUP command. Argument:
- group: the group name
Returns:
- resp: server response if successful
- count: number of articles
- first: first article number
- last: last article number
- name: the group name
zGROUP r r r5 rO r rP )r rG r rD r; r7 rE )r r> r wordscountr& r% nr r r r$ s
z
NNTP.groupc C s | d|S )a Process a HELP command. Argument:
- file: Filename string or file object to store the result in
Returns:
- resp: server response if successful
- list: list of strings returned by the server in response to the
HELP command
ZHELP)r )r rf r r r help s z NNTP.helpc C s8 | dst|| }t|d }|d }|||fS )z_Internal: parse the response line of a STAT, NEXT, LAST,
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zNNTP._statparsec C s | |}| |S )z/Internal: process a STAT, NEXT or LAST command.)r r )r r= r r r r _statcmd s
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NNTP._statcmdc C s" |r| d|S | dS dS )a( Process a STAT command. Argument:
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the current article is selected)
Returns:
- resp: server response if successful
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- message_id: the message id
zSTAT {0}ZSTATN)r rZ )r message_specr r r stat s z NNTP.statc C s
| dS )z;Process a NEXT command. No arguments. Return as for STAT.ZNEXTr r{ r r r next s z NNTP.nextc C s
| dS )z;Process a LAST command. No arguments. Return as for STAT.ZLASTr r{ r r r r% s z NNTP.lastc C s0 | ||\}}| |\}}}|t|||fS )z2Internal: process a HEAD, BODY or ARTICLE command.)r r r( )r r= rf r r! r r) r r r _artcmd s z NNTP._artcmdc C s$ |durd |}nd}| ||S )a0 Process a HEAD command. Argument:
- message_spec: article number or message id
- file: filename string or file object to store the headers in
Returns:
- resp: server response if successful
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NzHEAD {0}ZHEADrZ r r r rf r r r r head s z NNTP.headc C s$ |durd |}nd}| ||S )a+ Process a BODY command. Argument:
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Returns:
- resp: server response if successful
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NzBODY {0}ZBODYr r r r r body s z NNTP.bodyc C s$ |durd |}nd}| ||S )a5 Process an ARTICLE command. Argument:
- message_spec: article number or message id
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Returns:
- resp: server response if successful
- ArticleInfo: (article number, message id, list of article lines)
Nz ARTICLE {0}ZARTICLEr r r r r article s z NNTP.articlec C s
| dS )zYProcess a SLAVE command. Returns:
- resp: server response if successful
ZSLAVE)r r{ r r r slave! s z
NNTP.slavec sD t d | d|||\}} fdd|fdd|D fS )ai Process an XHDR command (optional server extension). Arguments:
- hdr: the header type (e.g. 'subject')
- str: an article nr, a message id, or a range nr1-nr2
- file: Filename string or file object to store the result in
Returns:
- resp: server response if successful
- list: list of (nr, value) strings
z^([0-9]+) ?(.*)
?z XHDR {0} {1}c s | }|r|ddS | S )Nr5 rO )r r$ )r= m)patr r
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z NNTP.xhdr..remove_numberc s g | ] } |qS r r r )r r r r 5 r z NNTP.xhdr..)r r r rZ )r Zhdrr rf r r! r )r r r xhdr' s
z NNTP.xhdrc C s. | d|||\}}| }|t||fS )aF Process an XOVER command (optional server extension) Arguments:
- start: start of range
- end: end of range
- file: Filename string or file object to store the result in
Returns:
- resp: server response if successful
- list: list of dicts containing the response fields
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XOVER {0}-{1})r rZ r rN )r startendrf r r! r< r r r xover7 s
z
NNTP.xoverc C sx d| j v rdnd}t|ttfr>|\}}|d||p6d7 }n|durR|d | }| ||\}}| }|t||fS )a Process an OVER command. If the command isn't supported, fall
back to XOVER. Arguments:
- message_spec:
- either a message id, indicating the article to fetch
information about
- or a (start, end) tuple, indicating a range of article numbers;
if end is None, information up to the newest message will be
retrieved
- or None, indicating the current article number must be used
- file: Filename string or file object to store the result in
Returns:
- resp: server response if successful
- list: list of dicts containing the response fields
NOTE: the "message id" form isn't supported by XOVER
ZOVERZXOVERz {0}-{1}r+ Nr )rt r- tupler rZ r r rN ) r r rf r r r r r! r< r r r overE s z NNTP.overc C sb | d}|ds t|| }t|dkr8t||d }t|dkrTt||t|dfS )zProcess the DATE command.
Returns:
- resp: server response if successful
- date: datetime object
ZDATEZ111rO r5 N)r rG r rD r; r
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z NNTP.datec C s | |}|ds t|t|ttfr2| }|D ]:}|tsR| dt }|drdd| }| j
| q6| j
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)r rG r r- r bytearray
splitlinesendswithr rstriprf r r rr )r r fr r= r r r _postq s
z
NNTP._postc C s | d|S )zProcess a POST command. Arguments:
- data: bytes object, iterable or file containing the article
Returns:
- resp: server response if successfulZPOST)r )r datar r r post s z NNTP.postc C s | d||S )a Process an IHAVE command. Arguments:
- message_id: message-id of the article
- data: file containing the article
Returns:
- resp: server response if successful
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NNTP.ihavec C s4 z"| j r| j | ` W | j n | j 0 d S rz )rf rj r^ r{ r r r r s
z NNTP._closec C s& z| d}W | n
| 0 |S )zdProcess a QUIT command and close the socket. Returns:
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NzAlready logged in.z7At least one of `user` and `usenetrc` must be specifiedr rO zauthinfo user Z381zauthinfo pass Z281rp )ry r netrcZauthenticatorsrc r r rG r r rt ru rv rw )r rk rl rn r Z credentialsZauthr r r r ri s>
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rG rv )r er r r rw s zNNTP._setreadermodec C s| | j rtd| jr td| d}|drp| j t| j|| j | _| j
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ddS ) zzProcess a STARTTLS command. Arguments:
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zTLS is already enabled.z+TLS cannot be started after authentication.STARTTLSZ382rb TNzTLS failed to start.)rx r ry r rG rf rj r` r^ rc rg rt ru r )r r_ r r r r starttls s
z
NNTP.starttls)T)N)N)N)N)N)N)N)N)N)NNT)N):r r r r r NNTP_PORTr r rh r| r re r ru r debugr r r rr r r r r r r r r r r r r r r$ r r r r r r% r r r r r r r r r r r r r r ri rw _have_sslr r r r r r ( sp
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