| Class | ChunkingZipFile | A zipfile.ZipFileobject which, withreadfile, 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. | 
| Parameters | |
| zipinfo | a zipfile.ZipInfo instance describing an entry in a zip archive to be counted. | 
| chunksize | Undocumented | 
| Returns | |
| int | the number of chunks present in the zip file. (Even an empty file counts as one chunk.) |