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S)9a� Temporary files.
This module provides generic, low- and high-level interfaces for
creating temporary files and directories. All of the interfaces
provided by this module can be used without fear of race conditions
except for 'mktemp'. 'mktemp' is subject to race conditions and
should not be used; it is 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.
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.
�NamedTemporaryFile�
TemporaryFile�SpooledTemporaryFile�TemporaryDirectory�mkstemp�mkdtemp�mktemp�TMP_MAX�
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�_RandomNameSequencea* An instance of _RandomNameSequence generates an endless
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aq Calculate the default directory to use for temporary files.
This routine should be called exactly once.
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| t j � r� w n � Yq Xq Wt t j d � � d S)z>Code common to mkstemp, TemporaryFile, and NamedTemporaryFile.i� r7 z#No usable temporary file name foundN)r] r, r rG r rE r- r rF rL rM r: rN rO rP rR �EEXIST) rT ZpreZsuf�flags�namesrU r: �filer r r r �_mkstemp_inner� s
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r* Fc C s@ | d k r t � } n | r' t } n t } t | | | | � S)a' 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
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descriptor is not inherited by children of this process.
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| t j � r� w. n � Yq. Xq. Wt t j d � � d S)a 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.
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creating user.
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Ni� r7 z(No usable temporary directory name found)r r] r, r rG r rE r- �mkdirrL rM r: rN rO rP rR r^ )re rf rT r` rU r: ra r r r r s$
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j d � � d S)a� User-callable function to return a unique temporary file name. The
file is not created.
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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.
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�_TemporaryFileCloserz�A separate object allowing proper closing of a temporary file's
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temporary file.NFTc C s | | _ | | _ | | _ d S)N)ra r: �delete)r" ra r: rj r r r �__init__f s z _TemporaryFileCloser.__init__r7 c C sW | j rS | j d k rS d | _ z | j j � Wd | j rO | | j � n Xn d S)NT)� close_calledra r rj r: )r" rK r r r r u s z_TemporaryFileCloser.closec C s | j � d S)N)r )r" r r r �__del__ s z _TemporaryFileCloser.__del__c C s& | j s" d | _ | j j � n d S)NT)rl ra r )r" r r r r � s ) r/ r0 r1 r2 ra rl rk r r: rK r rm r r r r ri ^ s
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temporary use. In particular, it seeks to automatically
remove the file when it is no longer needed.
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Close the temporary file, possibly deleting it.
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| � � Yn Xd S)a� Create and return a temporary file.
Arguments:
'prefix', 'suffix', 'dir' -- as for mkstemp.
'mode' -- the mode argument to io.open (default "w+b").
'buffering' -- the buffer size argument to io.open (default -1).
'encoding' -- the encoding argument to io.open (default None)
'newline' -- the newline argument to io.open (default None)
'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.
Nr7 � buffering�newline�encoding) r rH r r: Z O_TEMPORARYrb rI r rn � Exceptionr ) �moder� r� r� re rf rT rj r_ r r: ra r r r r � s
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C s� | d k r t � } n t } t | | | | � \ } } y3 t j | � t j | | d | d | d | �SWn t j | � � Yn Xd S)a> Create and return a temporary file.
Arguments:
'prefix', 'suffix', 'dir' -- as for mkstemp.
'mode' -- the mode argument to io.open (default "w+b").
'buffering' -- the buffer size argument to io.open (default -1).
'encoding' -- the encoding argument to io.open (default None)
'newline' -- the newline argument to io.open (default None)
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.
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or StringIO to a real file when it exceeds a certain size or
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z SpooledTemporaryFile.truncatec C s) | j } | j | � } | j | � | S)N)r� rJ r� )r" �sra �rvr r r rJ � s
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d d � Z d S)r a+ Create and return a temporary directory. This has the same
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example:
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...
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in it are removed.
r* Nc C sF t | | | � | _ t j | | j | j d d j | � �| _ d S)N� warn_messagezImplicitly cleaning up {!r})r r: �_weakref�finalize�_cleanup�format�
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