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. 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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`. 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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