Plan 9 from Bell Labs’s /usr/web/sources/contrib/bichued/root/sys/lib/python/tempfile.pyc

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Distributed under the MIT License.
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d!e#dd+�Z;dS(.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.
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    We determine whether or not a candidate temp dir is usable by
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    is successful, the test file is deleted.  To prevent denial of
    service, the name of the test file must be randomized.idi�twtblatis)No usable temporary directory found in %sN(R$RWt_text_openflagsRRRR+R,tabspathtxrangeR=R6RtfdopentwriteRtunlinktOSErrorRt_errnotEEXISTtENOENT(
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	cCsKtdjo:ti�ztdjo
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    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.
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    User-callable function to create and return a unique temporary
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    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(RlRRnR\RR=RR+R6tmkdirR`RoRaRbR(RwRxReRrRfRHRsRi((s/sys/lib/python/tempfile.pyR1s

	
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    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(
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t_TemporaryFileWrappercBsOeZdZd�Zd�ZeidjoeiZd�Zd�Z	nRS(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.
    cCs||_||_t|_dS(N(RsRHR!tclose_called(R-RsRH((s/sys/lib/python/tempfile.pyR.ws		cCsM|id}t||�}t|�td�jot|||�n|S(NRsi(t__dict__tgetattrttypetsetattr(R-RHRsta((s/sys/lib/python/tempfile.pyt__getattr__|s

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cCs|i�dS(N(R(R-((s/sys/lib/python/tempfile.pyt__del__�s(
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		sw+bc	Cs�|djo
t�}nd|jo
t}nt}tidjo|tiO}nt||||�\}}ti|||�}t	||�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 name of the file
    is accessible as file.name.  The file will be automatically deleted
    when it is closed.
    tbREN(
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tposixtcygwincCs�|djo
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t}nt}t||||�\}}y$ti|�ti|||�SWnti|��nXdS(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(	RlRRvRZRtRR_R]R(R�R�RwRxReRRRH((s/sys/lib/python/tempfile.pyR�s






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