Google
Edit File: tempfile.pyc
� ٜSec @ s d Z d d d d d d d d d d g Z d d l Z d d l Z d d l Z d d l m Z y d d l m Z Wn! e k r� d d l m Z n Xy d d l Z Wn e k r� d � Z n Xd � Z y d d l Z Wn e k r� d d l Z n Xe j Z e j e j Be j BZ e e d � r;e e j OZ n e e d � rZe e j OZ n e Z e e d � re e j OZ n e e d � r�e j Z n d Z d Z! e � Z" e e d � r�e j# Z$ n$ e e d � r�e j% Z$ n d � Z$ d � Z& d d. d � � YZ' d � Z( d � Z) d a+ d � Z, d � Z- d � Z. d a/ d! � Z0 d" e! d e1 d# � Z2 d" e! d d$ � Z3 d" e! d d% � Z4 d& d/ d' � � YZ5 d( d d" e! d e6 d) � Z7 e j8 d* k s�e j9 j: d+ k r�e7 Z; n d( d d" e! d d, � Z; d d0 d- � � YZ< d S(1 s� Temporary files. This module provides generic, low- and high-level interfaces for creating temporary files and directories. The interfaces listed as "safe" just below can be used without fear of race conditions. Those listed as "unsafe" cannot, and are provided for backward compatibility only. This module also provides some data items to the user: TMP_MAX - maximum number of names that will be tried before giving up. template - the default prefix for all temporary names. You may change this to control the default prefix. tempdir - If this is set to a string before the first use of any routine from this module, it will be considered as another candidate location to store temporary files. t NamedTemporaryFilet TemporaryFilet SpooledTemporaryFilet mkstempt mkdtempt mktempt TMP_MAXt gettempprefixt tempdirt gettempdiri����N( t Random( t StringIOc C s d S( N( ( t fd( ( s /usr/lib64/python2.7/tempfile.pyt _set_cloexec- s c C sW y t j | t j d � } Wn t k r/ n$ X| t j O} t j | t j | � d S( Ni ( t _fcntlt fcntlt F_GETFDt IOErrort FD_CLOEXECt F_SETFD( R t flags( ( s /usr/lib64/python2.7/tempfile.pyR 0 s t O_NOINHERITt O_NOFOLLOWt O_BINARYi' t tmpt lstatt statc C s; y t | � } Wn t k r, t j � n X| j � d S( N( t openR t _ost errort close( t fnt f( ( s /usr/lib64/python2.7/tempfile.pyt _stat] s c C s. y t | � Wn t j k r% t SXt Sd S( N( R! R R t Falset True( R ( ( s /usr/lib64/python2.7/tempfile.pyt _existsd s t _RandomNameSequencec B sF e Z d Z d d d Z d � Z e d � � Z d � Z d � Z RS( s* An instance of _RandomNameSequence generates an endless sequence of unpredictable strings which can safely be incorporated into file names. Each string is six characters long. Multiple threads can safely use the same instance at the same time. _RandomNameSequence is an iterator.t abcdefghijklmnopqrstuvwxyzt ABCDEFGHIJKLMNOPQRSTUVWXYZt 0123456789_c C s t � | _ t j j | _ d S( N( t _allocate_lockt mutexR t patht normcase( t self( ( s /usr/lib64/python2.7/tempfile.pyt __init__x s c C sC t j � } | t | d d � k r< t � | _ | | _ n | j S( Nt _rng_pid( R t getpidt getattrt Nonet _Randomt _rngR/ ( R- t cur_pid( ( s /usr/lib64/python2.7/tempfile.pyt rng| s c C s | S( N( ( R- ( ( s /usr/lib64/python2.7/tempfile.pyt __iter__� s c C so | j } | j } | j j } | j � z# g d D] } | | � ^ q2 } Wd | j � X| j d j | � � S( Nt 123456t ( R* t charactersR6 t choicet acquiret releaseR, t join( R- t mt ct chooset dummyt letters( ( s /usr/lib64/python2.7/tempfile.pyt next� s # ( t __name__t __module__t __doc__R: R. t propertyR6 R7 RD ( ( ( s /usr/lib64/python2.7/tempfile.pyR% l s c C s� g } x3 d D]+ } t j | � } | r | j | � q q Wt j d k rs t j d � } | r� | j | � q� nA t j d k r� | j d d d d g � n | j d d d g � y | j t j � � Wn* t t j f k r� | j t j � n X| S( s[ Generate a list of candidate temporary directories which _get_default_tempdir will try.t TMPDIRt TEMPt TMPt riscoss Wimp$ScrapDirt nts c:\temps c:\tmps \temps \tmps /tmps /var/tmps /usr/tmp( RI RJ RK ( R t getenvt appendt namet extendt getcwdt AttributeErrorR t curdir( t dirlistt envnamet dirname( ( s /usr/lib64/python2.7/tempfile.pyt _candidate_tempdir_list� s" c C sV t � } t � } t } x!| D]} | t j k rU t j j t j j | � � } n x� t d � D]� } | j � } t j j | | � } yu t j | | d � } zG z2 t j | d d t �� } | j d � Wd QXWd t j | � XWd t j | � X| SWqb t t f k r3} | j d t j k r4Pq4qb Xqb Wq Wt t j d | f � d S( sq Calculate the default directory to use for temporary files. This routine should be called exactly once. We determine whether or not a candidate temp dir is usable by trying to create and write to a file in that directory. If this is successful, the test file is deleted. To prevent denial of service, the name of the test file must be randomized.id i� t wbt closefdt blatNi s) No usable temporary directory found in %s( R% RX t _text_openflagsR RT R+ R, t abspatht xrangeRD R> R t _ioR" t writeR t unlinkt OSErrorR t argst _errnot EEXISTt ENOENT( t namerRU R t dirt seqRP t filenameR t fpt e( ( s /usr/lib64/python2.7/tempfile.pyt _get_default_tempdir� s0 ! c C sG t d k rC t j � z t d k r1 t � a n Wd t j � Xn t S( s7 Common setup sequence for all user-callable interfaces.N( t _name_sequenceR2 t _once_lockR< R% R= ( ( ( s /usr/lib64/python2.7/tempfile.pyt _get_candidate_names� s c C s� t � } x� t t � D]� } | j � } t j j | | | | � } y9 t j | | d � } t | � | t j j | � f SWq t k r� } | j t j k r� q n � q Xq Wt t j d f � d S( s> Code common to mkstemp, TemporaryFile, and NamedTemporaryFile.i� s# No usable temporary file name foundN( Rp R^ R RD R R+ R> R R R] Rb t errnoRd Re R ( Rh t pret sufR t namesRi RP t fileR Rl ( ( s /usr/lib64/python2.7/tempfile.pyt _mkstemp_inner� s c C s t S( s Accessor for tempdir.template.( t template( ( ( s /usr/lib64/python2.7/tempfile.pyR � s c C sG t d k rC t j � z t d k r1 t � a n Wd t j � Xn t S( s Accessor for tempfile.tempdir.N( R R2 Ro R< Rm R= ( ( ( s /usr/lib64/python2.7/tempfile.pyR s R9 c C s@ | d k r t � } n | r' t } n t } t | | | | � S( s' User-callable function to create and return a unique temporary file. The return value is a pair (fd, name) where fd is the file descriptor returned by os.open, and name is the filename. If 'suffix' is specified, the file name will end with that suffix, otherwise there will be no suffix. If 'prefix' is specified, the file name will begin with that prefix, otherwise a default prefix is used. If 'dir' is specified, the file will be created in that directory, otherwise a default directory is used. If 'text' is specified and true, the file is opened in text mode. Else (the default) the file is opened in binary mode. On some operating systems, this makes no difference. The file is readable and writable only by the creating user ID. If the operating system uses permission bits to indicate whether a file is executable, the file is executable by no one. The file descriptor is not inherited by children of this process. Caller is responsible for deleting the file when done with it. N( R2 R R\ t _bin_openflagsRv ( t suffixt prefixRh t textR ( ( s /usr/lib64/python2.7/tempfile.pyR s c C s� | d k r t � } n t � } x� t t � D]x } | j � } t j j | | | | � } y t j | d � | SWq. t k r� } | j t j k r� q. n � q. Xq. Wt t j d f � d S( s User-callable function to create and return a unique temporary directory. The return value is the pathname of the directory. Arguments are as for mkstemp, except that the 'text' argument is not accepted. The directory is readable, writable, and searchable only by the creating user. Caller is responsible for deleting the directory when done with it. i� s( No usable temporary directory name foundN( R2 R Rp R^ R RD R R+ R> t mkdirRb Rq Rd Re R ( Ry Rz Rh Rt Ri RP Ru Rl ( ( s /usr/lib64/python2.7/tempfile.pyR 3 s c C s� | d k r t � } n t � } xM t t � D]? } | j � } t j j | | | | � } t | � s. | Sq. Wt t j d f � d S( s� User-callable function to return a unique temporary file name. The file is not created. Arguments are as for mkstemp, except that the 'text' argument is not accepted. This function is unsafe and should not be used. The file name refers to a file that did not exist at some point, but by the time you get around to creating it, someone else may have beaten you to the punch. s" No usable temporary filename foundN( R2 R Rp R^ R RD R R+ R> R$ R Rd Re ( Ry Rz Rh Rt Ri RP Ru ( ( s /usr/lib64/python2.7/tempfile.pyR R s t _TemporaryFileWrapperc B sk e Z d Z e d � Z d � Z d � Z e j d k r` e j Z d � Z d � Z d � Z n d � Z RS( s� Temporary file wrapper This class provides a wrapper around files opened for temporary use. In particular, it seeks to automatically remove the file when it is no longer needed. c C s( | | _ | | _ t | _ | | _ d S( N( Ru RP R" t close_calledt delete( R- Ru RP R ( ( s /usr/lib64/python2.7/tempfile.pyR. x s c C sN | j d } t | | � } t t | � t d � � sJ t | | | � n | S( NRu i ( t __dict__R1 t issubclasst typet setattr( R- RP Ru t a( ( s /usr/lib64/python2.7/tempfile.pyt __getattr__~ s c C s | j j � | S( N( Ru t __enter__( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� � s RM c C sB | j s> t | _ | j j � | j r> | j | j � q> n d S( N( R~ R# Ru R R Ra RP ( R- ( ( s /usr/lib64/python2.7/tempfile.pyR � s c C s | j � d S( N( R ( R- ( ( s /usr/lib64/python2.7/tempfile.pyt __del__� s c C s& | j j | | | � } | j � | S( N( Ru t __exit__R ( R- t exct valuet tbt result( ( s /usr/lib64/python2.7/tempfile.pyR� � s c C s | j j | | | � d S( N( Ru R� ( R- R� R� R� ( ( s /usr/lib64/python2.7/tempfile.pyR� � s ( RE RF RG R# R. R� R� R RP Ra R R� R� ( ( ( s /usr/lib64/python2.7/tempfile.pyR} p s s w+bc C s� | d k r t � } n d | k r- t } n t } t j d k rX | rX | t j O} n t | | | | � \ } } t j | | | � } t | | | � S( s6 Create and return a temporary file. Arguments: 'prefix', 'suffix', 'dir' -- as for mkstemp. 'mode' -- the mode argument to os.fdopen (default "w+b"). 'bufsize' -- the buffer size argument to os.fdopen (default -1). 'delete' -- whether the file is deleted on close (default True). The file is created as mkstemp() would do it. Returns an object with a file-like interface; the name of the file is accessible as file.name. The file will be automatically deleted when it is closed unless the 'delete' argument is set to False. t bRM N( R2 R Rx R\ R RP t O_TEMPORARYRv t fdopenR} ( t modet bufsizeRy Rz Rh R R R RP Ru ( ( s /usr/lib64/python2.7/tempfile.pyR � s t posixt cygwinc C s� | d k r t � } n d | k r- t } n t } t | | | | � \ } } y$ t j | � t j | | | � SWn t j | � � n Xd S( s� Create and return a temporary file. Arguments: 'prefix', 'suffix', 'dir' -- as for mkstemp. 'mode' -- the mode argument to os.fdopen (default "w+b"). 'bufsize' -- the buffer size argument to os.fdopen (default -1). The file is created as mkstemp() would do it. Returns an object with a file-like interface. The file has no name, and will cease to exist when it is closed. R� N( R2 R Rx R\ Rv R Ra R� R ( R� R� Ry Rz Rh R R RP ( ( s /usr/lib64/python2.7/tempfile.pyR � s c B s e Z d Z e Z d d d d e d d � Z d � Z d � Z d � Z d � Z d � Z d � Z e d � � Z d � Z d � Z d � Z e d � � Z e d � � Z d � Z d � Z d � Z d � Z d � Z e d � � Z d � Z d � Z d � Z d � Z d � Z RS( s� Temporary file wrapper, specialized to switch from StringIO to a real file when it exceeds a certain size or when a fileno is needed. i s w+bi����R9 c C s: t � | _ | | _ t | _ | | | | | f | _ d S( N( t _StringIOt _filet _max_sizeR" t _rolledt _TemporaryFileArgs( R- t max_sizeR� R� Ry Rz Rh ( ( s /usr/lib64/python2.7/tempfile.pyR. � s c C s? | j r d S| j } | r; | j � | k r; | j � n d S( N( R� R� t tellt rollover( R- Ru R� ( ( s /usr/lib64/python2.7/tempfile.pyt _check� s c C sh | j r d S| j } t | j � } | _ | ` | j | j � � | j | j � d � t | _ d S( Ni ( R� R� R R� R` t getvaluet seekR� R# ( R- Ru t newfile( ( s /usr/lib64/python2.7/tempfile.pyR� s c C s | j j r t d � � n | S( Ns% Cannot enter context with closed file( R� t closedt ValueError( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� s c C s | j j � d S( N( R� R ( R- R� R� R� ( ( s /usr/lib64/python2.7/tempfile.pyR� s c C s | j j � S( N( R� R7 ( R- ( ( s /usr/lib64/python2.7/tempfile.pyR7 s c C s | j j � d S( N( R� R ( R- ( ( s /usr/lib64/python2.7/tempfile.pyR " s c C s | j j S( N( R� R� ( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� % s c C s | j � | j j � S( N( R� R� t fileno( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� ) s c C s | j j � d S( N( R� t flush( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� - s c C s | j j � S( N( R� t isatty( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� 0 s c C s. y | j j SWn t k r) | j d SXd S( Ni ( R� R� RS R� ( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� 3 s c C s' y | j j SWn t k r" d SXd S( N( R� RP RS R2 ( R- ( ( s /usr/lib64/python2.7/tempfile.pyRP : s c C s | j j S( N( R� RD ( R- ( ( s /usr/lib64/python2.7/tempfile.pyRD A s c G s | j j | � S( N( R� t read( R- Rc ( ( s /usr/lib64/python2.7/tempfile.pyR� D s c G s | j j | � S( N( R� t readline( R- Rc ( ( s /usr/lib64/python2.7/tempfile.pyR� G s c G s | j j | � S( N( R� t readlines( R- Rc ( ( s /usr/lib64/python2.7/tempfile.pyR� J s c G s | j j | � d S( N( R� R� ( R- Rc ( ( s /usr/lib64/python2.7/tempfile.pyR� M s c C s | j j S( N( R� t softspace( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� P s c C s | j j � S( N( R� R� ( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� T s c C s | j j � d S( N( R� t truncate( R- ( ( s /usr/lib64/python2.7/tempfile.pyR� W s c C s) | j } | j | � } | j | � | S( N( R� R` R� ( R- t sRu t rv( ( s /usr/lib64/python2.7/tempfile.pyR` Z s c C s) | j } | j | � } | j | � | S( N( R� t writelinesR� ( R- t iterableRu R� ( ( s /usr/lib64/python2.7/tempfile.pyR� ` s c G s? y | j j | � SWn$ t k r: t | j j | � � SXd S( N( R� t xreadlinesRS t iterR� ( R- Rc ( ( s /usr/lib64/python2.7/tempfile.pyR� f s N( RE RF RG R" R� Rw R2 R. R� R� R� R� R7 R RH R� R� R� R� R� RP RD R� R� R� R� R� R� R� R` R� R� ( ( ( s /usr/lib64/python2.7/tempfile.pyR � s6 ( ( ( (= RG t __all__t ioR_ t osR Rq Rd t randomR R3 t cStringIOR R� t ImportErrorR R R t threadt _threadt dummy_threadt allocate_lockR) t O_RDWRt O_CREATt O_EXCLR\ t hasattrR R Rx R R Rw Ro R R! R R$ R% RX Rm R2 Rn Rp Rv R R R R" R R R R} R# R RP t syst platformR R ( ( ( s /usr/lib64/python2.7/tempfile.pyt <module> s~ ( & % > !