twisted.python.zipstream

module documentation
(source)

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.

Class ChunkingZipFile A zipfile.ZipFile object which, with readfile, also gives you access to a file-like object for each entry.
Class DeflatedZipFileEntry File-like object used to read a deflated entry in a ZipFile
Class ZipFileEntry File-like object used to read an uncompressed entry in a ZipFile
Function countFileChunks Count the number of chunks that will result from the given ZipInfo.
Function countZipFileChunks Predict the number of chunks that will be extracted from the entire zipfile, given chunksize blocks.
Function unzipIterChunky 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.
Constant DIR_BIT Undocumented
Class _FileEntry Abstract superclass of both compressed and uncompressed variants of file-like objects within a zip archive.
def countFileChunks(zipinfo, chunksize): (source)

Count the number of chunks that will result from the given ZipInfo.

Parameters
zipinfoa zipfile.ZipInfo instance describing an entry in a zip archive to be counted.
chunksizeUndocumented
Returns
intthe number of chunks present in the zip file. (Even an empty file counts as one chunk.)
def countZipFileChunks(filename, chunksize): (source)

Predict the number of chunks that will be extracted from the entire zipfile, given chunksize blocks.

def unzipIterChunky(filename, directory='.', overwrite=0, chunksize=4096): (source)

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.

DIR_BIT: int = (source)

Undocumented

Value
16