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An incremental approach to unzipping files. This allows you to unzip a little
bit of a file at a time, which means you can report progress as a file unzips.
iÿÿÿÿNt ChunkingZipFilec B s e Z d Z d „ Z RS( sq
A ZipFile object which, with readfile(), also gives you access to a
filelike object for each entry.
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Return file-like object for name.
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header_offsett readt _fileHeaderSizet zipfilet stringFileHeadert
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Abstract superclass of both compressed and uncompressed variants of
file-like objects within a zip archive.
@ivar chunkingZipFile: a chunking zip file.
@type chunkingZipFile: L{ChunkingZipFile}
@ivar length: The number of bytes within the zip file that represent this
file. (This is the size on disk, not the number of decompressed bytes
which will result from reading it.)
@ivar fp: the underlying file object (that contains pkzip data). Do not
touch this, please. It will quite likely move or go away.
@ivar closed: File-like 'closed' attribute; True before this file has been
closed, False after.
@type closed: L{bool}
@ivar finished: An older, broken synonym for 'closed'. Do not touch this,
please.
@type finished: L{int}
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Create a L{_FileEntry} from a L{ChunkingZipFile}.
i N( t chunkingZipFileR t lengtht finishedt Falset closed( R R$ R% ( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyt __init__V s
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Returns false because zip files should not be ttys
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Close self (file-like object)
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Read a line.
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Implement next as file does (like readline, except raises StopIteration
at EOF)
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Returns a list of all the lines
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Returns an iterator (so self)
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Returns an iterator (so self)
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File-like object used to read an uncompressed entry in a ZipFile
c C s t j | | | ƒ d | _ d S( Ni ( R# R) t readBytes( R R$ R% ( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyR) £ s c C s | j S( N( R: ( R ( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyt tell¨ s c C s© | d k r | j | j } n | d k s4 | j r8 d S| j j j t | | j | j ƒ ƒ } | j t | ƒ 7_ | j | j k s™ t | ƒ | k r¥ d | _ n | S( Ni R- i ( t NoneR% R: R& R$ R R t mint len( R t nt data( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyR ¬ s $ N( R R! R" R) R; R< R ( ( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyR ž s R c B s, e Z d Z d „ Z d „ Z d d „ Z RS( sE
File-like object used to read a deflated entry in a ZipFile
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decompressR$ R R R% R: t flusht joinRA R> R= ( R R? t resultR@ ( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyR Ë s< &
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Unzip the file
@param filename: the name of the zip file
@param directory: the directory into which the files will be
extracted
@param overwrite: if on, overwrite files when they exist. You can
still get an error if you try to create a directory over a file
with the same name or vice-versa.
s7 zipstream.unzip is deprecated since Twisted 11.0.0 for s0 security reasons. Use Python's zipfile instead.t categoryt
stackleveli t suppressWarningN( t warningst warnt DeprecationWarningt unzipIterR+ ( t filenamet directoryt overwritet i( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyt unzipñ s
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Return a generator for the zipfile. This implementation will yield
after every file.
The value it yields is the number of files left to unzip.
s0 zipstream.unzipIter is deprecated since Twisted s+ 11.0.0 for security reasons. Use Python's s zipfile instead.RM RN i R i i t wbN( RP RQ RR R t ZipFilet namelistt ost patht existst makedirsR> R t
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Predict the number of chunks that will be extracted from the entire
zipfile, given chunksize blocks.
i ( R t infolistt countFileChunks( RT t chunksizet totalchunksRe t info( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyt countZipFileChunks, s
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Count the number of chunks that will result from the given L{ZipInfo}.
@param zipinfo: a L{zipfile.ZipInfo} instance describing an entry in a zip
archive to be counted.
@return: the number of chunks present in the zip file. (Even an empty file
counts as one chunk.)
@rtype: L{int}
i i ( t divmodt file_size( t zipinfoRo t countt extra( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyRn 8 s
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Count the number of entries in a zip archive. (Don't use this function.)
@param filename: The filename of a zip archive.
@type filename: L{str}
s" countZipFileEntries is deprecated.i ( RP RQ RR R RZ R> R[ ( RT Re ( ( s< /usr/lib/python2.7/dist-packages/twisted/python/zipstream.pyt countZipFileEntriesI s
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Return a generator for the zipfile. This implementation will yield after
every chunksize uncompressed bytes, or at the end of a file, whichever
comes first.
The value it yields is the number of chunks left to unzip.
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