e fW @ s d Z d 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 Z d d
l
Z d d
l Z
d d l m Z d d
l Z y d d
l Z Wn e k
r d d
l Z Yn Xe j Z e j e j Be j BZ e e d re e j OZ n e Z e e d r&e e j OZ n e e d rAe j Z n d Z d Z! e Z" e e d rqe j# Z$ n' e e d re j% Z$ n d d Z$ d d Z& Gd d d Z' d d Z( d d Z) d
a* d d Z+ d! d" Z, d# d Z- d
a. d$ d Z/ d% e! d
d& d' d Z0 d% e! d
d( d Z1 d% e! d
d) d Z2 Gd* d+ d+ Z3 Gd, d- d- Z4 d. d7 d
d
d% e! d
d0 d1 d Z5 e j6 d2 k se j7 j8 d3 k re5 Z9 n! d. d8 d
d
d% e! d
d4 d Z9 Gd5 d d Z: Gd6 d d e; Z< d
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
TemporaryFileSpooledTemporaryFileTemporaryDirectorymkstempmkdtempmktempTMP_MAX
gettempprefixtempdir
gettempdir N)Random
O_NOFOLLOWO_BINARYi' Ztmplstatstatc C s& t j | t j } t j | d S)N)_osopenO_RDONLYclose)fnfd r -/opt/alt/python34/lib64/python3.4/tempfile.py_statI s r c C s/ y t | Wn t k
r& d SYn Xd Sd S)NFT)r OSError)r r r r _existsM s
r c @ sF e Z d Z d Z d Z e d d Z d d Z d d Z d S)
_RandomNameSequencea* 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.Z%abcdefghijklmnopqrstuvwxyz0123456789_c C sC t j } | t | d d k r< t | _ | | _ n | j S)N_rng_pid)r getpidgetattr_RandomZ_rngr )selfZcur_pidr r r rng_ s
z_RandomNameSequence.rngc C s | S)Nr )r" r r r __iter__g s z _RandomNameSequence.__iter__c sD | j | j j f d d t d D } d j | S)Nc s g | ] } q Sr r ).0Zdummy)cchooser r
m s z0_RandomNameSequence.__next__.. )
charactersr# Zchoicerangejoin)r" Zlettersr )r& r' r __next__j s "z _RandomNameSequence.__next__N) __name__
__module__ __qualname____doc__r+ propertyr# r$ r. r r r r r U s
r c C s g } x3 d D]+ } t j | } | r
| j | q
q
Wt j d k rg | j d d d d g n | j d d
d g y | j t j Wn( t t f k
r | j t j Yn X| S)
z[Generate a list of candidate temporary directories which
_get_default_tempdir will try.TMPDIRTEMPTMPntzc:\tempzc:\tmpz\tempz\tmpz/tmpz/var/tmpz/usr/tmp)r4 r5 r6 ) r getenvappendnameextendgetcwdAttributeErrorr curdir)dirlistZenvnamedirnamer r r _candidate_tempdir_listp s
rA c C s t } t } xT| D]L} | t j k rC t j j | } n x t d D]} t | } t j j | | } yu t j | t
d } zG z2 t j | d d d } | j d Wd QXWd t j
| XWd t j | X| SWqP t k
r YqP t k
rNt j d k rIt j j | rIt j | t j rIwP n PYqP t k
r`PYqP XqP Wq Wt t j d | d S)
aq 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.d i wbclosefdFs blatNr7 z)No usable temporary directory found in %s)r rA r r> pathabspathr, nextr- r _bin_openflags_iowriter unlinkFileExistsErrorPermissionErrorr: isdiraccessW_OKr FileNotFoundError_errnoENOENT)Znamerr? dirseqr: filenamer fpr r r _get_default_tempdir s:
!
rX c
C sG t d k rC t j z t d k r1 t a n Wd t j Xn t S)z7Common setup sequence for all user-callable interfaces.N)_name_sequence
_once_lockacquirer releaser r r r _get_candidate_names s
r] c C s t } x t t D] } t | } t j j | | | | } y/ t j | | d } | t j j | f SWq t k
r w Yq t
k
r t j d k r t j j | r t j
| 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 ZpreZsufflagsnamesrU r: filer r r r _mkstemp_inner s
! rb c C s t S)z Accessor for tempdir.template.)templater r r r r s c
C sG t d k rC t j z t d k r1 t a n Wd t j Xn t S)z Accessor for tempfile.tempdir.N)r
rZ r[ rX r\ r r r r r s
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
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)r _text_openflagsrH rb )suffixprefixrT textr_ r r r r s c C s | d k r t } n t } x t t D] } t | } t j j | | | | } y t j | d | SWq. t k
r w. Yq. t
k
r t j d k r t j j | r t j
| 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.
The directory is readable, writable, and searchable only by the
creating user.
Caller is responsible for deleting the directory when done with it.
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$
! c C s | d k r t } n t } xM t t D]? } t | } t j j | | | | } t | s. | Sq. Wt t
j d d S)a 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.
Nz"No usable temporary filename found) r r] r, r rG r rE r- r rL rR r^ )re rf rT r` rU r: ra r r r r ? s c @ sm e Z d Z d Z d Z d Z d d d Z e j d k r] e j d d Z
d
d Z n d d Z
d S)
_TemporaryFileCloserzA separate object allowing proper closing of a temporary file's
underlying file object, without adding a __del__ method to the
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
ri c @ sa e Z d Z d Z d d d Z d d Z d d Z d d
Z d d Z d
d Z d S)_TemporaryFileWrapperzTemporary 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.
Tc C s4 | | _ | | _ | | _ t | | | | _ d S)N)ra r: rj ri _closer)r" ra r: rj r r r rk s z _TemporaryFileWrapper.__init__c s | j d } t | | } t | d rg | t j f d d } | j | _ | } n t | t s t | | | n | S)Nra __call__c s
| | S)Nr )argskwargs)funcr r func_wrapper s z7_TemporaryFileWrapper.__getattr__..func_wrapper) __dict__r hasattr
_functoolswrapsro
isinstanceintsetattr)r" r: ra art r )rs r __getattr__ s
! z!_TemporaryFileWrapper.__getattr__c C s | j j | S)N)ra __enter__)r" r r r r~ s
z _TemporaryFileWrapper.__enter__c C s& | j j | | | } | j | S)N)ra __exit__r )r" excvaluetbresultr r r r s
z _TemporaryFileWrapper.__exit__c C s | j j d S)zA
Close the temporary file, possibly deleting it.
N)ro r )r" r r r r s z_TemporaryFileWrapper.closec c s x | j D] } | Vq
Wd S)N)ra )r" liner r r r$ s z _TemporaryFileWrapper.__iter__N)
r/ r0 r1 r2 rk r} r~ r r r$ r r r r rn s rn zw+b Tc C s | d k r t } n t } t j d k rC | rC | t j O} n t | | | | \ } }
y8 t j | | d | d | d | } t | |
| SWn" t k
r 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)
'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 bufferingnewlineencoding) 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
posixcygwinc
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.
Nr r r )r rH rb r rK rI r r )
r r r r re rf rT r_ r r: r r r r s
c
@ s{ e Z d Z d Z d Z d d d8 d d d e d d d Z d
d Z d d
Z d d Z d d Z
d d Z d d Z e
d d Z e
d d Z d d Z d d Z d d Z e
d d! Z e
d" d# Z e
d$ d% Z d& d' Z d( d) Z d* d+ Z d, d- Z e
d. d/ Z d0 d1 Z d d2 d3 Z d4 d5 Z d6 d7 Z d S)9r zTemporary file wrapper, specialized to switch from BytesIO
or StringIO to a real file when it exceeds a certain size or
when a fileno is needed.
Fr zw+br Nr* c C s d | k r t j | _ n t j d d | _ | | _ d | _ i | d 6| d 6| d 6| d 6| d 6| d 6| d
6| _ d S) Nbr
Fr r re rf r rT )rI BytesIO_fileStringIO _max_size_rolled_TemporaryFileArgs) r" max_sizer r r r re rf rT r r r rk s z SpooledTemporaryFile.__init__c C s? | j r
d S| j } | r; | j | k r; | j n d S)N)r r tellrollover)r" ra r r r r _check* s
zSpooledTemporaryFile._checkc C sh | j r
d S| j } t | j } | _ | ` | j | j | j | j d d | _ d S)Nr T)r r r r rJ getvalueseekr )r" ra Znewfiler r r r 0 s z SpooledTemporaryFile.rolloverc C s | j j r t d n | S)Nz%Cannot enter context with closed file)r closed
ValueError)r" r r r r~ A s z SpooledTemporaryFile.__enter__c C s | j j d S)N)r r )r" r r r r r r r F s z SpooledTemporaryFile.__exit__c C s
| j j S)N)r r$ )r" r r r r$ J s z SpooledTemporaryFile.__iter__c C s | j j d S)N)r r )r" r r r r M s zSpooledTemporaryFile.closec C s
| j j S)N)r r )r" r r r r P s zSpooledTemporaryFile.closedc C sK y | j j SWn6 t k
rF d | j d k r7 n | j d SYn Xd S)Nr r r )r r r= r )r" r r r r T s
z SpooledTemporaryFile.encodingc C s | j | j j S)N)r r fileno)r" r r r r ] s
zSpooledTemporaryFile.filenoc C s | j j d S)N)r flush)r" r r r r a s zSpooledTemporaryFile.flushc C s
| j j S)N)r isatty)r" r r r r d s zSpooledTemporaryFile.isattyc C s2 y | j j SWn t k
r- | j d SYn Xd S)Nr )r r r= r )r" r r r r g s
zSpooledTemporaryFile.modec C s+ y | j j SWn t k
r& d SYn Xd S)N)r r: r= )r" r r r r: n s
zSpooledTemporaryFile.namec C sK y | j j SWn6 t k
rF d | j d k r7 n | j d SYn Xd S)Nr r r )r newlinesr= r )r" r r r r u s
z SpooledTemporaryFile.newlinesc G s | j j | S)N)r read)r" rq r r r r ~ s zSpooledTemporaryFile.readc G s | j j | S)N)r readline)r" rq r r r r s z SpooledTemporaryFile.readlinec G s | j j | S)N)r readlines)r" rq r r r r s z SpooledTemporaryFile.readlinesc G s | j j | d S)N)r r )r" rq r r r r s zSpooledTemporaryFile.seekc C s
| j j S)N)r softspace)r" r r r r s z SpooledTemporaryFile.softspacec C s
| j j S)N)r r )r" r r r r s zSpooledTemporaryFile.tellc C sL | d k r | j j n, | | j k r8 | j n | j j | d S)N)r truncater r )r" sizer r r r s
z SpooledTemporaryFile.truncatec C s) | j } | j | } | j | | S)N)r rJ r )r" sra rvr r r rJ s
zSpooledTemporaryFile.writec C s) | j } | j | } | j | | S)N)r
writelinesr )r" iterablera r r r r r s
z SpooledTemporaryFile.writelines) r/ r0 r1 r2 r rc rk r r r~ r r$ r r3 r r r r r r r: r r r r r r r r rJ r r r r r r s8 c @ sm e Z d Z d Z d e d d d Z e d d Z d d Z d
d Z d d
Z
d d Z d S)r a+ Create and return a temporary directory. This has the same
behavior as mkdtemp but can be used as a context manager. For
example:
with TemporaryDirectory() as tmpdir:
...
Upon exiting the context, the directory and everything contained
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: _weakreffinalize_cleanupformat
_finalizer)r" re rf rT r r r rk s zTemporaryDirectory.__init__c C s! t j | t j | t d S)N)_shutilrmtree _warningswarnResourceWarning)clsr: r r r r r s
zTemporaryDirectory._cleanupc C s d j | j j | j S)Nz <{} {!r}>)r __class__r/ r: )r" r r r __repr__ s zTemporaryDirectory.__repr__c C s | j S)N)r: )r" r r r r~ s z TemporaryDirectory.__enter__c C s | j d S)N)cleanup)r" r r r r r r r s zTemporaryDirectory.__exit__c C s& | j j r" t j | j n d S)N)r detachr r r: )r" r r r r s zTemporaryDirectory.cleanup) r/ r0 r1 r2 rc rk classmethodr r r~ r r r r r r r s
r r )=r2 __all__ functoolsrw warningsr iorI osr Zshutilr errnorR Zrandomr
r! weakrefr _thread ImportErrorZ
_dummy_thread
allocate_lockZ_allocate_lockO_RDWRO_CREATO_EXCLrd rv r rH r r rc rZ r r r r r rA rX rY r] rb r r
r r r r ri rn r r: sysplatformr r objectr r r r r sx
- %& +? $!