�
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e% � n d S(# sS An FTP client class and some helper functions.
Based on RFC 959: File Transfer Protocol (FTP), by J. Postel and J. Reynolds
Example:
>>> from ftplib import FTP
>>> ftp = FTP('ftp.python.org') # connect to host, default port
>>> ftp.login() # default, i.e.: user anonymous, passwd anonymous@
'230 Guest login ok, access restrictions apply.'
>>> ftp.retrlines('LIST') # list directory contents
total 9
drwxr-xr-x 8 root wheel 1024 Jan 3 1994 .
drwxr-xr-x 8 root wheel 1024 Jan 3 1994 ..
drwxr-xr-x 2 root wheel 1024 Jan 3 1994 bin
drwxr-xr-x 2 root wheel 1024 Jan 3 1994 etc
d-wxrwxr-x 2 ftp wheel 1024 Sep 5 13:43 incoming
drwxr-xr-x 2 root wheel 1024 Nov 17 1993 lib
drwxr-xr-x 6 1094 wheel 1024 Sep 13 19:07 pub
drwxr-xr-x 3 root wheel 1024 Jan 3 1994 usr
-rw-r--r-- 1 root root 312 Aug 1 1994 welcome.msg
'226 Transfer complete.'
>>> ftp.quit()
'221 Goodbye.'
>>>
A nice test that reveals some of the network dialogue would be:
python ftplib.py -d localhost -l -p -l
i����N( t getfqdn( t _GLOBAL_DEFAULT_TIMEOUTt FTPt Netrci i i t Errorc B s e Z RS( ( t __name__t
__module__( ( ( s /usr/lib64/python2.7/ftplib.pyR ? s t error_replyc B s e Z RS( ( R R ( ( ( s /usr/lib64/python2.7/ftplib.pyR @ s t
error_tempc B s e Z RS( ( R R ( ( ( s /usr/lib64/python2.7/ftplib.pyR A s t
error_permc B s e Z RS( ( R R ( ( ( s /usr/lib64/python2.7/ftplib.pyR B s t error_protoc B s e Z RS( ( R R ( ( ( s /usr/lib64/python2.7/ftplib.pyR
C s s
c B s� e Z d Z d Z d Z e Z e Z d, Z
d, Z d, Z d Z
e Z d d d d e d � Z d d d d � Z d � Z d � Z e Z d � Z d
� Z d � Z d � Z d
� Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z! d � Z" d � Z# d � Z$ d, d � Z% d, d � Z& d d d d � Z' d d, d � Z( d, d � Z) d d, d, d � Z* d, d � Z+ d � Z, d! � Z- d" � Z. d# � Z/ d$ � Z0 d% � Z1 d& � Z2 d' � Z3 d( � Z4 d) � Z5 d* � Z6 d+ � Z7 RS(- su An FTP client class.
To create a connection, call the class using these arguments:
host, user, passwd, acct, timeout
The first four arguments are all strings, and have default value ''.
timeout must be numeric and defaults to None if not passed,
meaning that no timeout will be set on any ftp socket(s)
If a timeout is passed, then this is now the default timeout for all ftp
socket operations for this instance.
Then use self.connect() with optional host and port argument.
To download a file, use ftp.retrlines('RETR ' + filename),
or ftp.retrbinary() with slightly different arguments.
To upload a file, use ftp.storlines() or ftp.storbinary(),
which have an open file as argument (see their definitions
below for details).
The download/upload functions first issue appropriate TYPE
and PORT or PASV commands.
i t i c C s? | | _ | r; | j | � | r; | j | | | � q; n d S( N( t timeoutt connectt login( t selft hostt usert passwdt acctR ( ( s /usr/lib64/python2.7/ftplib.pyt __init__v s
i���c C s� | d k r | | _ n | d k r0 | | _ n | d k rH | | _ n t j | j | j f | j � | _ | j j | _ | j j d � | _ | j
� | _ | j S( s� Connect to host. Arguments are:
- host: hostname to connect to (string, default previous host)
- port: port to connect to (integer, default previous port)
R i i���t rb( R t portR t sockett create_connectiont sockt familyt aft makefilet filet getrespt welcome( R R R R ( ( s /usr/lib64/python2.7/ftplib.pyR
~ s $c C s( | j r! d G| j | j � GHn | j S( s` Get the welcome message from the server.
(this is read and squirreled away by connect())s *welcome*( t debuggingt sanitizeR ( R ( ( s /usr/lib64/python2.7/ftplib.pyt
getwelcome� s c C s
| | _ d S( s� Set the debugging level.
The required argument level means:
0: no debugging output (default)
1: print commands and responses but not body text etc.
2: also print raw lines read and sent before stripping CR/LFN( R ( R t level( ( s /usr/lib64/python2.7/ftplib.pyt set_debuglevel� s c C s
| | _ d S( s� Use passive or active mode for data transfers.
With a false argument, use the normal PORT mode,
With a true argument, use the PASV command.N( t
passiveserver( R t val( ( s /usr/lib64/python2.7/ftplib.pyt set_pasv� s c C s� | d d k s | d d k r~ t | � } x. | d k r\ | | d d k r\ | d } q/ W| d d | d | | } n t | � S( Ni s pass s PASS i s
t *( t lent repr( R t st i( ( s /usr/lib64/python2.7/ftplib.pyR! � s #!c C si d | k s d | k r' t d � � n | t } | j d k rU d G| j | � GHn | j j | � d S( Ns
s
s4 an illegal newline character should not be containedi s *put*( t
ValueErrort CRLFR R! R t sendall( R t line( ( s /usr/lib64/python2.7/ftplib.pyt putline� s
c C s/ | j r d G| j | � GHn | j | � d S( Ns *cmd*( R R! R1 ( R R0 ( ( s /usr/lib64/python2.7/ftplib.pyt putcmd� s c C s� | j j | j d � } t | � | j k rD t d | j � � n | j d k rh d G| j | � GHn | sw t � n | d t k r� | d } n | d t k r� | d } n | S( Ni s got more than %d bytess *get*i����i����( R t readlinet maxlineR) R R R! t EOFErrorR. ( R R0 ( ( s /usr/lib64/python2.7/ftplib.pyt getline� s
c C sx | j � } | d d !d k rt | d } xH | j � } | d | } | d | k r, | d d !d k r, Pq, q, Wn | S( Ni i t -s
( R6 ( R R0 t codet nextline( ( s /usr/lib64/python2.7/ftplib.pyt getmultiline� s
c C s� | j � } | j r* d G| j | � GHn | d | _ | d } | d k rQ | S| d k ri t | � n | d k r� t | � n t | � d S(
Ns *resp*i i t 1t 2t 3t 4t 5( R; R< R= ( R: R R! t lastrespR R R
( R t respt c( ( s /usr/lib64/python2.7/ftplib.pyR � s
c C s, | j � } | d d k r( t | � n | S( s% Expect a response beginning with '2'.i R< ( R R ( R RA ( ( s /usr/lib64/python2.7/ftplib.pyt voidresp� s c C sm d t } | j d k r. d G| j | � GHn | j j | t � | j � } | d d k ri t | � n d S(
s� Abort a file transfer. Uses out-of-band data.
This does not follow the procedure from the RFC to send Telnet
IP and Synch; that doesn't seem to work with the servers I've
tried. Instead, just send the ABOR command as OOB data.t ABORi s *put urgent*i t 426t 225t 226N( RE RF RG ( R. R R! R R/ t MSG_OOBR: R
( R R0 RA ( ( s /usr/lib64/python2.7/ftplib.pyt abort� s
c C s | j | � | j � S( s' Send a command and return the response.( R2 R ( R t cmd( ( s /usr/lib64/python2.7/ftplib.pyt sendcmd� s
c C s | j | � | j � S( s8 Send a command and expect a response beginning with '2'.( R2 RC ( R RJ ( ( s /usr/lib64/python2.7/ftplib.pyt voidcmd� s
c C sY | j d � } t | d � t | d � g } | | } d d j | � } | j | � S( sU Send a PORT command with the current host and the given
port number.
t .i s PORT t ,( t splitR* t joinRL ( R R R t hbytest pbytest bytesRJ ( ( s /usr/lib64/python2.7/ftplib.pyt sendport s
c C s� d } | j t j k r! d } n | j t j k r< d } n | d k rT t d � n d t | � | t | � d g } d d j | � } | j | � S( sE Send an EPRT command with the current host and the given port number.i i i s unsupported address familyR s EPRT t |( R R t AF_INETt AF_INET6R
R* RP RL ( R R R R t fieldsRJ ( ( s /usr/lib64/python2.7/ftplib.pyt sendeprt s !c C sq d } d } x� t j d d | j t j d t j � D]w } | \ } } } } } y& t j | | | � } | j | � Wn2 t j k
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� d } | j j
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| j t j k r9| j
|
| � } n | j |
| � } | j t k rm| j | j � n | S( s3 Create a new socket and send a PORT command for it.i s! getaddrinfo returns an empty listi N( t NoneR t getaddrinfoR t SOCK_STREAMt
AI_PASSIVEt bindt errort closet listent getsocknameR RV RT RY R R t
settimeout( R t errR t resR t socktypet protot canonnamet saR R RA ( ( s /usr/lib64/python2.7/ftplib.pyt makeport s4 .
c C s� | j t j k rU t | j d � � \ } } | j r? | } q| | j j � d } n' t | j d � | j j � � \ } } | | f S( s< Internal: Does the PASV or EPSV handshake -> (address, port)t PASVi t EPSV( R R RV t parse227RK t trust_server_pasv_ipv4_addressR t getpeernamet parse229( R t untrusted_hostR R ( ( s /usr/lib64/python2.7/ftplib.pyt makepasv: s 'c
C s� d } | j r� | j � \ } } t j | | f | j � } yn | d k r_ | j d | � n | j | � } | d d k r� | j � } n | d d k r� t | � n Wq�| j � � q�Xn� | j
� } z� | d k r� | j d | � n | j | � } | d d k r!| j � } n | d d k r=t | � n | j � \ } } | j t k rq| j
| j � n Wd | j � X| d d k r�t | � } n | | f S( s� Initiate a transfer over the data connection.
If the transfer is active, send a port command and the
transfer command, and accept the connection. If the server is
passive, send a pasv command, connect to it, and start the
transfer command. Either way, return the socket for the
connection and the expected size of the transfer. The
expected size may be None if it could not be determined.
Optional `rest' argument can be a string that is sent as the
argument to a REST command. This is essentially a server
marker used to tell the server to skip over any data up to the
given marker.
s REST %si R< R; Ni t 150( RZ R% Rr R R R RK R R R` Rj t acceptR Rc t parse150(
R RJ t restt sizeR R t connRA R t sockaddr( ( s /usr/lib64/python2.7/ftplib.pyt ntransfercmdF s>
c C s | j | | � d S( s0 Like ntransfercmd() but returns only the socket.i ( Rz ( R RJ Rv ( ( s /usr/lib64/python2.7/ftplib.pyt transfercmd s c C s� | s d } n | s d } n | s- d } n | d k rR | d k rR | d } n | j d | � } | d d k r� | j d | � } n | d d k r� | j d | � } n | d d
k r� t | � n | S( s Login, default anonymous.t anonymousR R7 s
anonymous@s USER i R= s PASS s ACCT R< ( R R7 ( RK R ( R R R R RA ( ( s /usr/lib64/python2.7/ftplib.pyR � s
i c C se | j d � | j | | � } z. x' | j | � } | s> Pn | | � q% WWd | j � X| j � S( s� Retrieve data in binary mode. A new port is created for you.
Args:
cmd: A RETR command.
callback: A single parameter callable to be called on each
block of data read.
blocksize: The maximum number of bytes to read from the
socket at one time. [default: 8192]
rest: Passed to transfercmd(). [default: None]
Returns:
The response code.
s TYPE IN( RL R{ t recvR` RC ( R RJ t callbackt blocksizeRv Rx t data( ( s /usr/lib64/python2.7/ftplib.pyt
retrbinary� s
c C s. | d
k r t } n | j d � } | j | � } d
} z� | j d � } x� | j | j d � } t | � | j k r� t d | j � � n | j d k r� d Gt
| � GHn | s� Pn | d t k r� | d } n | d d k r� | d } n | | � qN WWd
| r| j � n | j � X| j
� S( sn Retrieve data in line mode. A new port is created for you.
Args:
cmd: A RETR, LIST, NLST, or MLSD command.
callback: An optional single parameter callable that is called
for each line with the trailing CRLF stripped.
[default: print_line()]
Returns:
The response code.
s TYPE AR i s got more than %d bytesi s *retr*i����i����s
N( RZ t
print_lineRK R{ R R3 R4 R) R R R* R. R` RC ( R RJ R~ RA Rx t fpR0 ( ( s /usr/lib64/python2.7/ftplib.pyt retrlines� s0
c C s{ | j d � | j | | � } zD x= | j | � } | s> Pn | j | � | r% | | � q% q% WWd | j � X| j � S( s9 Store a file in binary mode. A new port is created for you.
Args:
cmd: A STOR command.
fp: A file-like object with a read(num_bytes) method.
blocksize: The maximum data size to read from fp and send over
the connection at once. [default: 8192]
callback: An optional single parameter callable that is called on
each block of data after it is sent. [default: None]
rest: Passed to transfercmd(). [default: None]
Returns:
The response code.
s TYPE IN( RL R{ t readR/ R` RC ( R RJ R� R R~ Rv Rx t buf( ( s /usr/lib64/python2.7/ftplib.pyt
storbinary� s
c C s� | j d � | j | � } z� x� | j | j d � } t | � | j k rc t d | j � � n | sm Pn | d t k r� | d t k r� | d } n | t } n | j | � | r" | | � q" q" WWd | j � X| j � S( sh Store a file in line mode. A new port is created for you.
Args:
cmd: A STOR command.
fp: A file-like object with a readline() method.
callback: An optional single parameter callable that is called on
each line after it is sent. [default: None]
Returns:
The response code.
s TYPE Ai s got more than %d bytesi����i����N(
RL R{ R3 R4 R) R R. R/ R` RC ( R RJ R� R~ Rx R� ( ( s /usr/lib64/python2.7/ftplib.pyt storlines� s$
c C s d | } | j | � S( s Send new account name.s ACCT ( RL ( R t passwordRJ ( ( s /usr/lib64/python2.7/ftplib.pyR s
c G sB d } x | D] } | d | } q
Wg } | j | | j � | S( sB Return a list of files in a given directory (default the current).t NLSTt ( R� t append( R t argsRJ t argt files( ( s /usr/lib64/python2.7/ftplib.pyt nlst s
c G s� d } d } | d rJ t | d � t d � k rJ | d | d } } n x% | D] } | rQ | d | } qQ qQ W| j | | � d S( s List a directory in long form.
By default list current directory to stdout.
Optional last argument is callback function; all
non-empty arguments before it are concatenated to the
LIST command. (This *should* only be used for a pathname.)t LISTi����R R� N( RZ t typeR� ( R R� RJ t funcR� ( ( s /usr/lib64/python2.7/ftplib.pyt dir s &
c C s@ | j d | � } | d d k r/ t | � n | j d | � S( s Rename a file.s RNFR i R= s RNTO ( RK R RL ( R t fromnamet tonameRA ( ( s /usr/lib64/python2.7/ftplib.pyt rename+ s c C s4 | j d | � } | d d k r' | St | � d S( s Delete a file.s DELE i t 250t 200N( R� R� ( RK R ( R t filenameRA ( ( s /usr/lib64/python2.7/ftplib.pyt delete2 s c C s | d k rS y | j d � SWqh t k
rO } | j d d d k rP � qP qh Xn | d k rh d } n d | } | j | � S( s Change to a directory.s ..t CDUPi i t 500R RM s CWD ( RL R R� ( R t dirnamet msgRJ ( ( s /usr/lib64/python2.7/ftplib.pyt cwd: s
c C si | j d | � } | d d k re | d j � } y t | � SWqe t t f k
ra t | � SXn d S( s Retrieve the size of a file.s SIZE i t 213N( RK t stript intt
OverflowErrorR- t long( R R� RA R+ ( ( s /usr/lib64/python2.7/ftplib.pyRw G s c C s | j d | � } t | � S( s+ Make a directory, return its full pathname.s MKD ( RK t parse257( R R� RA ( ( s /usr/lib64/python2.7/ftplib.pyt mkdR s c C s | j d | � S( s Remove a directory.s RMD ( RL ( R R� ( ( s /usr/lib64/python2.7/ftplib.pyt rmdW s c C s | j d � } t | � S( s! Return current working directory.t PWD( RK R� ( R RA ( ( s /usr/lib64/python2.7/ftplib.pyt pwd[ s c C s | j d � } | j � | S( s Quit, and close the connection.t QUIT( RL R` ( R RA ( ( s /usr/lib64/python2.7/ftplib.pyt quit` s
c C sb z/ | j } d | _ | d k r. | j � n Wd | j } d | _ | d k r] | j � n Xd S( s8 Close the connection without assuming anything about it.N( R RZ R` R ( R R R ( ( s /usr/lib64/python2.7/ftplib.pyR` f s N(8 R R t __doc__R R t FTP_PORTR t MAXLINER4 RZ R R R R% t FalseRn R R R
R" R$ t debugR' R! R1 R2 R6 R: R RC RI RK RL RT RY Rj Rr Rz R{ R R� R� R� R� R R� R� R� R� R� Rw R� R� R� R� R` ( ( ( s /usr/lib64/python2.7/ftplib.pyR O sd
9 $
t FTP_TLSc
B s� e Z d Z e j Z d d d d d
d
d
e d
d � Z d d d e d � Z
d � Z d � Z d � Z
d
d � Z d d
d � Z d
d
� Z d d
d
d � Z d
d � Z RS( s� A FTP subclass which adds TLS support to FTP as described
in RFC-4217.
Connect as usual to port 21 implicitly securing the FTP control
connection before authenticating.
Securing the data connection requires user to explicitly ask
for it by calling prot_p() method.
Usage example:
>>> from ftplib import FTP_TLS
>>> ftps = FTP_TLS('ftp.python.org')
>>> ftps.login() # login anonymously previously securing control channel
'230 Guest login ok, access restrictions apply.'
>>> ftps.prot_p() # switch to secure data connection
'200 Protection level set to P'
>>> ftps.retrlines('LIST') # list directory content securely
total 9
drwxr-xr-x 8 root wheel 1024 Jan 3 1994 .
drwxr-xr-x 8 root wheel 1024 Jan 3 1994 ..
drwxr-xr-x 2 root wheel 1024 Jan 3 1994 bin
drwxr-xr-x 2 root wheel 1024 Jan 3 1994 etc
d-wxrwxr-x 2 ftp wheel 1024 Sep 5 13:43 incoming
drwxr-xr-x 2 root wheel 1024 Nov 17 1993 lib
drwxr-xr-x 6 1094 wheel 1024 Sep 13 19:07 pub
drwxr-xr-x 3 root wheel 1024 Jan 3 1994 usr
-rw-r--r-- 1 root root 312 Aug 1 1994 welcome.msg
'226 Transfer complete.'
>>> ftps.quit()
'221 Goodbye.'
>>>
R c
C s� | d k r' | d k r' t d � � n | d k rN | d k rN t d � � n | | _ | | _ | d k r� t j | j d | d | �} n | | _ t | _ t
j | | | | | | � d S( Ns4 context and keyfile arguments are mutually exclusives5 context and certfile arguments are mutually exclusivet certfilet keyfile( RZ R- R� R� t sslt _create_stdlib_contextt ssl_versiont contextR� t _prot_pR R (
R R R R R R� R� R� R t source_address( ( s /usr/lib64/python2.7/ftplib.pyR � s c C s? | r) t | j t j � r) | j � n t j | | | | � S( N( t
isinstanceR R� t SSLSockett authR R ( R R R R t secure( ( s /usr/lib64/python2.7/ftplib.pyR � s
c C s� t | j t j � r$ t d � � n | j t j k rH | j d � } n | j d � } | j j | j d | j
�| _ | j j d d � | _ | S( s2 Set up secure control connection by using TLS/SSL.s Already using TLSs AUTH TLSs AUTH SSLt server_hostnamet modeR (
R� R R� R� R- R� t PROTOCOL_SSLv23RL R� t wrap_socketR R R ( R RA ( ( s /usr/lib64/python2.7/ftplib.pyR� � s c C s) | j d � | j d � } t | _ | S( s Set up secure data connection.s PBSZ 0s PROT P( RL t TrueR� ( R RA ( ( s /usr/lib64/python2.7/ftplib.pyt prot_p� s
c C s | j d � } t | _ | S( s" Set up clear text data connection.s PROT C( RL R� R� ( R RA ( ( s /usr/lib64/python2.7/ftplib.pyt prot_c� s c C sL t j | | | � \ } } | j rB | j j | d | j �} n | | f S( NR� ( R Rz R� R� R� R ( R RJ Rv Rx Rw ( ( s /usr/lib64/python2.7/ftplib.pyRz � s
i c C s� | j d � | j | | � } zM x' | j | � } | s> Pn | | � q% Wt | t j � rk | j � n Wd | j � X| j � S( Ns TYPE I( RL R{ R} R� R� R� t unwrapR` RC ( R RJ R~ R Rv Rx R� ( ( s /usr/lib64/python2.7/ftplib.pyR� � s
c C s> | d k r t } n | j d � } | j | � } | j d � } z� x� | j | j d � } t | � | j k r� t d | j � � n | j d k r� d Gt
| � GHn | s� Pn | d t k r� | d } n | d d k r� | d } n | | � qH Wt | t
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c C s� | j d � | j | | � } zc x= | j | � } | s> Pn | j | � | r% | | � q% q% Wt | t j � r� | j � n Wd | j � X| j � S( Ns TYPE I(
RL R{ R� R/ R� R� R� R� R` RC ( R RJ R� R R~ Rv Rx R� ( ( s /usr/lib64/python2.7/ftplib.pyR� s
c C s | j d � | j | � } z� x� | j | j d � } t | � | j k rc t d | j � � n | sm Pn | d t k r� | d t k r� | d } n | t } n | j | � | r" | | � q" q" Wt | t j
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r� t | � SXd S( s� Parse the '150' response for a RETR request.
Returns the expected transfer size or None; size is not guaranteed to
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s� Parse the '227' response for a PASV request.
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t groupsRP R� ( RA R� R� t numbersR R ( ( s /usr/lib64/python2.7/ftplib.pyRm K s "c C s� | d d k r t | � n | j d � } | d k rC t | � n | j d | d � } | d k rq t | � n | | d | | d k r� t | � n | | d | !j | | d � } t | � d k r� t | � n | d } t | d � } | | f S( s� Parse the '229' response for an EPSV request.
Raises error_proto if it does not contain '(|||port|)'
Return ('host.addr.as.numbers', port#) tuple.i t 229t (i t )i i ( R t findR
RO R) R� ( RA t peert leftt rightt partsR R ( ( s /usr/lib64/python2.7/ftplib.pyRp _ s "
c C s� | d d k r t | � n | d d !d k r3 d Sd } d } t | � } xg | | k r� | | } | d } | d k r� | | k s� | | d k r� Pn | d } n | | } qN W| S( s� Parse the '257' response for a MKD or PWD request.
This is a response to a MKD or PWD request: a directory name.
Returns the directoryname in the 257 reply.i t 257i s "R i t "( R R) ( RA R� R, t nRB ( ( s /usr/lib64/python2.7/ftplib.pyR� u s
c C s | GHd S( s+ Default retrlines callback to print a line.N( ( R0 ( ( s /usr/lib64/python2.7/ftplib.pyR� � s R t Ic C s� | s | } n d | } | j | � | j | � t | j d � � \ } } | j | | � | j d | � } | d d k r� t � n | j d | � } | d d
k r� t � n | j � | j � d S( s+ Copy file from one FTP-instance to another.s TYPE Rk s STOR i t 125Rs s RETR N( R� Rs ( R� Rs ( RL Rm RK RT R
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d � Z RS( s� Class to parse & provide access to 'netrc' format files.
See the netrc(4) man page for information on the file format.
WARNING: This class is obsolete -- use module netrc instead.
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| j j � S( s4 Return a list of hosts mentioned in the .netrc file.( R� t keys( R ( ( s /usr/lib64/python2.7/ftplib.pyt get_hosts� s c C s| | j � } d } } } | | j k rB | j | \ } } } n | pN | j } | p] | j } | pl | j } | | | f S( s� Returns login information for the named host.
The return value is a triple containing userid,
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get_macros s c C s | j | S( s6 Return a sequence of lines which define a named macro.( R� ( R t macro( ( s /usr/lib64/python2.7/ftplib.pyt get_macro s N( R R R� RZ R� R� R� R R R R R ( ( ( s /usr/lib64/python2.7/ftplib.pyR � s C c C s4 t t j � d k r- t j GHt j d � n d } d } x+ t j d d k rf | d } t j d =q< Wt j d d d k r� t j d d } t j d =n t j d } t | � } | j | � d } } } y t | � } Wn0 t
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| t j j d � qtW| j � d S( s� Test program.
Usage: ftp [-d] [-r[file]] host [-l[dir]] [-d[dir]] [-p] [file] ...
-d dir
-l list
-p password
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