usr/lib64/python2.7/_pyio.pyc000064400000175331147207552010011716 0ustar00 mfc@sdZddlmZmZddlZddlZddlZddlZddlZyddl m Z Wn!e k rddl m Z nXddlZddlmZmZmZmZddlmZeZddZd efd YZd deeeed Zd fdYZdfdYZdeefdYZdfdYZ ej j!e de fdYZ"ej"j!e"ddl#m$Z$e"j!e$de fdYZ%ej%j!e%de%fdYZ&de%fdYZ'de&fdYZ(d e&fd!YZ)d"e%fd#YZ*d$e)e(fd%YZ+d&e fd'YZ,ej,j!e,d(ej-fd)YZ.d*e,fd+YZ/d,e/fd-YZ0dS(.u) Python implementation of the io module. i(tprint_functiontunicode_literalsN(t allocate_lock(t__all__tSEEK_SETtSEEK_CURtSEEK_END(tEINTRiitBlockingIOErrorcBseZdZddZRS(uCException raised when I/O would block on a non-blocking I/O stream.icCsJtt|j||t|ttfs=tdn||_dS(Nu$characters_written must be a integer(tsupertIOErrort__init__t isinstancetinttlongt TypeErrortcharacters_written(tselfterrnotstrerrorR((s/usr/lib64/python2.7/_pyio.pyR $s(t__name__t __module__t__doc__R (((s/usr/lib64/python2.7/_pyio.pyR surcCs t|tttfs+td|nt|tsMtd|nt|ttfsutd|n|dk rt|t rtd|n|dk rt|t rtd|nt|}|tdst|t|krtd|nd|k}d|k} d |k} d |k} d |k} d |k} d |kr| sz| rtdnt }n| r| rtdn|| | dkrtdn|p| p| stdn| r|dk rtdn| r3|dk r3tdn| rT|dk rTtdnt ||rfdpid| rudpxd| rd pd| rd pd|}t }|dks|dkr|j rd}t }n|dkr>t }ytj|jj}Wntjtfk r%q>X|dkr>|}q>n|dkrYtdn|dkr~| ro|Stdn| rt||}nF| s| rt||}n(|rt||}ntd|| r|St|||||} || _| S(uOpen file and return a stream. Raise IOError upon failure. file is either a text or byte string giving the name (and the path if the file isn't in the current working directory) of the file to be opened or an integer file descriptor of the file to be wrapped. (If a file descriptor is given, it is closed when the returned I/O object is closed, unless closefd is set to False.) mode is an optional string that specifies the mode in which the file is opened. It defaults to 'r' which means open for reading in text mode. Other common values are 'w' for writing (truncating the file if it already exists), and 'a' for appending (which on some Unix systems, means that all writes append to the end of the file regardless of the current seek position). In text mode, if encoding is not specified the encoding used is platform dependent. (For reading and writing raw bytes use binary mode and leave encoding unspecified.) The available modes are: ========= =============================================================== Character Meaning --------- --------------------------------------------------------------- 'r' open for reading (default) 'w' open for writing, truncating the file first 'a' open for writing, appending to the end of the file if it exists 'b' binary mode 't' text mode (default) '+' open a disk file for updating (reading and writing) 'U' universal newline mode (for backwards compatibility; unneeded for new code) ========= =============================================================== The default mode is 'rt' (open for reading text). For binary random access, the mode 'w+b' opens and truncates the file to 0 bytes, while 'r+b' opens the file without truncation. Python distinguishes between files opened in binary and text modes, even when the underlying operating system doesn't. Files opened in binary mode (appending 'b' to the mode argument) return contents as bytes objects without any decoding. In text mode (the default, or when 't' is appended to the mode argument), the contents of the file are returned as strings, the bytes having been first decoded using a platform-dependent encoding or using the specified encoding if given. buffering is an optional integer used to set the buffering policy. Pass 0 to switch buffering off (only allowed in binary mode), 1 to select line buffering (only usable in text mode), and an integer > 1 to indicate the size of a fixed-size chunk buffer. When no buffering argument is given, the default buffering policy works as follows: * Binary files are buffered in fixed-size chunks; the size of the buffer is chosen using a heuristic trying to determine the underlying device's "block size" and falling back on `io.DEFAULT_BUFFER_SIZE`. On many systems, the buffer will typically be 4096 or 8192 bytes long. * "Interactive" text files (files for which isatty() returns True) use line buffering. Other text files use the policy described above for binary files. encoding is the name of the encoding used to decode or encode the file. This should only be used in text mode. The default encoding is platform dependent, but any encoding supported by Python can be passed. See the codecs module for the list of supported encodings. errors is an optional string that specifies how encoding errors are to be handled---this argument should not be used in binary mode. Pass 'strict' to raise a ValueError exception if there is an encoding error (the default of None has the same effect), or pass 'ignore' to ignore errors. (Note that ignoring encoding errors can lead to data loss.) See the documentation for codecs.register for a list of the permitted encoding error strings. newline controls how universal newlines works (it only applies to text mode). It can be None, '', '\n', '\r', and '\r\n'. It works as follows: * On input, if newline is None, universal newlines mode is enabled. Lines in the input can end in '\n', '\r', or '\r\n', and these are translated into '\n' before being returned to the caller. If it is '', universal newline mode is enabled, but line endings are returned to the caller untranslated. If it has any of the other legal values, input lines are only terminated by the given string, and the line ending is returned to the caller untranslated. * On output, if newline is None, any '\n' characters written are translated to the system default line separator, os.linesep. If newline is '', no translation takes place. If newline is any of the other legal values, any '\n' characters written are translated to the given string. If closefd is False, the underlying file descriptor will be kept open when the file is closed. This does not work when a file name is given and must be True in that case. open() returns a file object whose type depends on the mode, and through which the standard file operations such as reading and writing are performed. When open() is used to open a file in a text mode ('w', 'r', 'wt', 'rt', etc.), it returns a TextIOWrapper. When used to open a file in a binary mode, the returned class varies: in read binary mode, it returns a BufferedReader; in write binary and append binary modes, it returns a BufferedWriter, and in read/write mode, it returns a BufferedRandom. It is also possible to use a string or bytearray as a file for both reading and writing. For strings StringIO can be used like a file opened in a text mode, and for bytes a BytesIO can be used like a file opened in a binary mode. uinvalid file: %ruinvalid mode: %ruinvalid buffering: %ruinvalid encoding: %ruinvalid errors: %ruarwb+tUuruwuau+utubuUu$can't use U and writing mode at onceu'can't have text and binary mode at onceiu)can't have read/write/append mode at onceu/must have exactly one of read/write/append modeu-binary mode doesn't take an encoding argumentu+binary mode doesn't take an errors argumentu+binary mode doesn't take a newline argumentuiiuinvalid buffering sizeucan't have unbuffered text I/Ouunknown mode: %rN(R t basestringR RRtNonetsettlent ValueErrortTruetFileIOtFalsetisattytDEFAULT_BUFFER_SIZEtostfstattfilenot st_blksizeterrortAttributeErrortBufferedRandomtBufferedWritertBufferedReadert TextIOWrappertmode(tfileR+t bufferingtencodingterrorstnewlinetclosefdtmodestreadingtwritingt appendingtupdatingttexttbinarytrawtline_bufferingtbstbuffer((s/usr/lib64/python2.7/_pyio.pytopen+so (          / $        t DocDescriptorcBseZdZdZRS(u%Helper for builtins.open.__doc__ cCs dtjS(Nu\open(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True) (R=R(Rtobjttyp((s/usr/lib64/python2.7/_pyio.pyt__get__s(RRRRA(((s/usr/lib64/python2.7/_pyio.pyR>st OpenWrappercBs eZdZeZdZRS(uWrapper for builtins.open Trick so that open won't become a bound method when stored as a class variable (as dbm.dumb does). 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If the buffer_size is not given, it defaults to DEFAULT_BUFFER_SIZE. icCs|jstdntj|||dkrFtdn|dk rktjdt|j n||_ t |_ t |_dS(Nu "raw" argument must be writable.iuinvalid buffer sizeumax_buffer_size is deprecated(R[R RR RRtwarningstwarntDeprecationWarningt_warning_stack_offsetRRht _write_bufRt _write_lock(RR9Rtmax_buffer_size((s/usr/lib64/python2.7/_pyio.pyR )s       c CsJ|jrtdnt|tr6tdn|jt|j|jkre|j nt|j}|jj |t|j|}t|j|jkr<y|j Wq<t k r8}t|j|jkr9t|j|j}||8}|j|j |_t |j |j |q9q<Xn|SWdQXdS(Nuwrite to closed fileu$can't write unicode to binary stream(R]RR RRRRRRt_flush_unlockedRRRR(RRmtbeforetwrittenRtoverage((s/usr/lib64/python2.7/_pyio.pyRx8s(    "cCsL|j=|j|dkr2|jj}n|jj|SWdQXdS(N(RRRR9RORP(RRL((s/usr/lib64/python2.7/_pyio.pyRPTs    cCs|j|jWdQXdS(N(RR(R((s/usr/lib64/python2.7/_pyio.pyRR[s cCs|jrtdnx|jry|jj|j}WnGtk r\tdn+tk r}|jt krqqnX|dkrttj ddn|t |jks|dkrtdn|j|4qWdS(Nuflush of closed fileuHself.raw should implement RawIOBase: it should not raise BlockingIOErroru)write could not complete without blockingiu*write() returned incorrect number of bytes( R]RRR9RxRt RuntimeErrorR RRRtEAGAINR(RRdR((s/usr/lib64/python2.7/_pyio.pyR_s$    !cCstj|t|jS(N(RRORR(R((s/usr/lib64/python2.7/_pyio.pyROtsic Cs\d|kodkns+tdn|j"|jtj|||SWdQXdS(Niiuinvalid whence(RRRRRN(RRLRM((s/usr/lib64/python2.7/_pyio.pyRNws   N( RRRRR RR RxRPRRRRORN(((s/usr/lib64/python2.7/_pyio.pyR(s     tBufferedRWPaircBseZdZeddZddZdZdZddZ dZ dZ d Z d Z d Zd Zed ZRS(uA buffered reader and writer object together. 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The arguments are two RawIO instances. umax_buffer_size is deprecatediu#"reader" argument must be readable.u#"writer" argument must be writable.N( RRRRRYR R[R)treaderR(twriter(RRRRR((s/usr/lib64/python2.7/_pyio.pyR s   cCs%|dkrd}n|jj|S(Ni(RRRi(RRd((s/usr/lib64/python2.7/_pyio.pyRis  cCs|jj|S(N(RR(RRm((s/usr/lib64/python2.7/_pyio.pyRscCs|jj|S(N(RRx(RRm((s/usr/lib64/python2.7/_pyio.pyRxsicCs|jj|S(N(RR`(RRd((s/usr/lib64/python2.7/_pyio.pyR`scCs|jj|S(N(RR(RRd((s/usr/lib64/python2.7/_pyio.pyRscCs |jjS(N(RRY(R((s/usr/lib64/python2.7/_pyio.pyRYscCs |jjS(N(RR[(R((s/usr/lib64/python2.7/_pyio.pyR[scCs |jjS(N(RRR(R((s/usr/lib64/python2.7/_pyio.pyRRscCs|jj|jjdS(N(RRTR(R((s/usr/lib64/python2.7/_pyio.pyRTs cCs|jjp|jjS(N(RRR(R((s/usr/lib64/python2.7/_pyio.pyRscCs |jjS(N(RR](R((s/usr/lib64/python2.7/_pyio.pyR]sN(RRRR RR RiRRxR`RRYR[RRRTRR}R](((s/usr/lib64/python2.7/_pyio.pyRs           R'cBsweZdZdZed dZddZdZd dZ d dZ dZ dd Z d Z d ZRS( uA buffered interface to random access streams. 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If the buffer_size is omitted it defaults to DEFAULT_BUFFER_SIZE. icCs7|jtj|||tj||||dS(N(RXR)R R((RR9RR((s/usr/lib64/python2.7/_pyio.pyR s ic Csd|kodkns+tdn|j|jrt|j(|jj|jt|jdWdQXn|jj||}|j|jWdQX|dkrt dn|S(Niiuinvalid whenceiu seek() returned invalid position( RRRRRR9RNRRRR (RRLRM((s/usr/lib64/python2.7/_pyio.pyRNs   ,  cCs'|jrtj|Stj|SdS(N(RR(ROR)(R((s/usr/lib64/python2.7/_pyio.pyROs  cCs+|dkr|j}ntj||S(N(RROR(RP(RRL((s/usr/lib64/python2.7/_pyio.pyRPs cCs/|dkrd}n|jtj||S(Ni(RRRR)Ri(RRd((s/usr/lib64/python2.7/_pyio.pyRis   cCs|jtj||S(N(RRR)R(RRm((s/usr/lib64/python2.7/_pyio.pyRs cCs|jtj||S(N(RRR)R`(RRd((s/usr/lib64/python2.7/_pyio.pyR`s cCs|jtj||S(N(RRR)R(RRd((s/usr/lib64/python2.7/_pyio.pyRs cCsY|jrI|j2|jj|jt|jd|jWdQXntj||S(Ni( RRR9RNRRRR(Rx(RRm((s/usr/lib64/python2.7/_pyio.pyRxs   #N(RRRRR RR RNRORPRiRR`RRx(((s/usr/lib64/python2.7/_pyio.pyR's       t TextIOBasecBsneZdZddZdZd dZdZdZe dZ e dZ e d Z RS( uBase class for text I/O. 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After the underlying buffer has been detached, the TextIO is in an unusable state. udetachN(RK(R((s/usr/lib64/python2.7/_pyio.pyR0scCsdS(uSubclasses should override.N(R(R((s/usr/lib64/python2.7/_pyio.pyR.9scCsdS(uLine endings translated so far. Only line endings translated during reading are considered. Subclasses should override. N(R(R((s/usr/lib64/python2.7/_pyio.pytnewlines>scCsdS(uMError setting of the decoder or encoder. Subclasses should override.N(R(R((s/usr/lib64/python2.7/_pyio.pyR/HsN( RRRRiRxRRPRnRR}R.RR/(((s/usr/lib64/python2.7/_pyio.pyRs      tIncrementalNewlineDecodercBsbeZdZddZedZdZdZdZdZ dZ d Z e d Z RS( u+Codec used when reading a file in universal newlines mode. It wraps another incremental decoder, translating \r\n and \r into \n. It also records the types of newlines encountered. 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If line_buffering is True, a call to flush is implied when a call to write contains a newline character. icCs |dk r8t|t r8tdt|fn|d krZtd|fn|dkryddl}Wntk rd}qX|j}nt|tstd |n|dkrd }n"t|tstd |n||_ ||_ ||_ ||_ | |_ |dk|_||_|dk|_|pYtj|_d|_d|_d|_d |_d|_|jj|_|_|jr|jr|jj}|d kry|jj d Wqt!k rqXqndS(Nuillegal newline type: %ruu u u uillegal newline value: %riuasciiuinvalid encoding: %rustrictuinvalid errors: %ri(Nuu u u ("RR RRRRtlocalet ImportErrortgetpreferredencodingRt_line_bufferingt _encodingt_errorst_readuniversalt_readtranslatet_readnlt_writetranslateR!tlinesept_writenlt_encodert_decodert_decoded_charst_decoded_chars_usedt _snapshotR<RVt _seekablet_tellingR[ROt _get_encoderRt LookupError(RR<R.R/R0R:Rtposition((s/usr/lib64/python2.7/_pyio.pyR sL                   cCsEy |j}Wntk r-dj|jSXdj||jSdS(Nu$<_pyio.TextIOWrapper encoding='{0}'>u/<_pyio.TextIOWrapper name={0!r} encoding='{1}'>(RJR&RR.(RRJ((s/usr/lib64/python2.7/_pyio.pyRs   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cCs+tj|j}||j|_|jS(N(RtgetincrementalencoderRRR(Rt make_encoder((s/usr/lib64/python2.7/_pyio.pyRMscCsLtj|j}||j}|jr?t||j}n||_|S(N(RtgetincrementaldecoderRRRRRR(Rt make_decoderR((s/usr/lib64/python2.7/_pyio.pyt _get_decoderRs   cCs||_d|_dS(uSet the _decoded_chars buffer.iN(RR(Rtchars((s/usr/lib64/python2.7/_pyio.pyt_set_decoded_chars]s cCsR|j}|dkr%|j|}n|j|||!}|jt|7_|S(u'Advance into the _decoded_chars buffer.N(RRRR(RRdtoffsetR((s/usr/lib64/python2.7/_pyio.pyt_get_decoded_charsbs   cCs1|j|krtdn|j|8_dS(u!Rewind the _decoded_chars buffer.u"rewind decoded_chars out of boundsN(RtAssertionError(RRd((s/usr/lib64/python2.7/_pyio.pyt_rewind_decoded_charslscCs|jdkrtdn|jr?|jj\}}n|jj|j}| }|j|jj |||jr|||f|_ n| S(uQ Read and decode the next chunk of data from the BufferedReader. u no decoderN( RRRRRR<Rt _CHUNK_SIZERRR(Rt dec_buffert dec_flagst input_chunkteof((s/usr/lib64/python2.7/_pyio.pyt _read_chunkrs   icCs*||d>B|d>B|d>Bt|d>BS(Ni@iii(R(RRRt bytes_to_feedtneed_eoft 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nU|j s|s|r|j p|j|_ |j jd |f|d f|_ n|rd|jj|} |j|j j| ||| f|_ t|j|krXtd n||_ny|jpy|j} Wntk rn'X|dkr| jdn | j |S( Nutell on closed fileu!underlying stream is not seekableiiu#can't do nonzero cur-relative seeksiu#can't do nonzero end-relative seeksuu(invalid whence (%r, should be 0, 1 or 2)unegative seek position %rRu#can't restore logical file position(R]RRR RORRR<RNRRRRRRRRRiRRRRRRR( RtcookieRMRRRR R RR R((s/usr/lib64/python2.7/_pyio.pyRNsf                   cCs|j|dkrd}n|jp1|j}y |jWntk r^tdnX|dkr|j|j|j j dt }|j dd|_ |St}|j|}xGt||kr | r |j }||j|t|7}qW|SdS(Niuan integer is requirediRu(RZRRRRR&RRRR<RiRRRRRR (RRdRtresultR ((s/usr/lib64/python2.7/_pyio.pyRi9s(          !cCs=t|_|j}|s9d|_|j|_tn|S(N(RRRnRRRRp(RRq((s/usr/lib64/python2.7/_pyio.pyRrRs     cCs|jrtdn|dkr-d}n$t|ttfsQtdn|j}d}|jsy|j nd}}xt rH|j r|j d|}|dkr|d}Pqt |}n|jr|j d|}|j d|}|dkr2|dkr$t |}q|d}Pq|dkrL|d}Pq||krf|d}Pq||dkr|d}Pq|d}Pn5|j |j}|dkr|t |j}Pn|dkrt ||kr|}Pnx|jr|jrPqqW|jr+||j7}q|jd d|_|SqW|dkrj||krj|}n|jt |||| S( Nuread from closed fileiulimit must be an integeriu iu iu(R]RRR R RRRRRRRRaRRRR RRRR(RReRqtstartRLtendpostnlpostcrpos((s/usr/lib64/python2.7/_pyio.pyRn[sp                           cCs|jr|jjSdS(N(RRR(R((s/usr/lib64/python2.7/_pyio.pyRsN('RRRRRRR RR}R.R/R:R<RVRYR[RRRTR]RJR#RRxRRRRRR RRRORPRRNRiRrRnR(((s/usr/lib64/python2.7/_pyio.pyR*sH  9             "  >   H  XtStringIOcBsVeZdZdddZdZdZedZedZdZ RS( uText I/O implementation using an in-memory buffer. The initial_value argument sets the value of object. The newline argument is like the one of TextIOWrapper's constructor. uu cCstt|jtddddd||dkrCt|_n|rt|tsgt|}n|j ||j dndS(NR.uutf-8R/ustrictR0i( R R!R RRRRR RRxRN(Rt initial_valueR0((s/usr/lib64/python2.7/_pyio.pyR s   cCs)|j|jjj|j|jS(N(RRR<RRRR(R((s/usr/lib64/python2.7/_pyio.pyRs cCs tj|S(N(tobjectR(R((s/usr/lib64/python2.7/_pyio.pyRscCsdS(N(R(R((s/usr/lib64/python2.7/_pyio.pyR/scCsdS(N(R(R((s/usr/lib64/python2.7/_pyio.pyR.scCs|jddS(Nudetach(RK(R((s/usr/lib64/python2.7/_pyio.pyRs( RRRR RRR}R/R.R(((s/usr/lib64/python2.7/_pyio.pyR!s  (1Rt __future__RRR!RzRRRtthreadRRRt dummy_threadtioRRRRRRR|R R RRRR=R>RBRRGRHtregisterR~t_ioRRRRR)R(RR'RRRR*R!(((s/usr/lib64/python2.7/_pyio.pytsX       "    < TjvaHI?U