According to the Python docs: class zipfile.ZipFile(file[, mode[, compression[, allowZip64]]]) Open a ZIP file, where file can be either a path to a file (a string) or a file-like object. So, to open the file in memory, just create a file-like object (perhaps using BytesIO). file_like_object = io.BytesIO(my_zip_data) zipfile_ob = zipfile.ZipFile(file_like_object)
You can implement a file-like object that reads data from FTP, instead of a local file. And pass that to ZipFile constructor, instead of a (local) file name. A trivial implementation can be like: from ftplib import FTP from ssl import SSLSocket class FtpFile: def __init__(self, ftp, name): self.ftp = ftp self.name = name self.size … Read more
zlib handles the deflate compression/decompression algorithm, but there is more than that in a ZIP file. You can try libzip. It is free, portable and easy to use. UPDATE: Here I attach quick’n’dirty example of libzip, with all the error controls ommited: #include <zip.h> int main() { //Open the ZIP archive int err = 0; … Read more
If you are zipping more than 2 lists (or even only 2, for that matter), a readable way would be: [list(a) for a in zip([1,2,3], [4,5,6], [7,8,9])] This uses a list comprehension to apply list to each element (tuple) in the list, converting them into lists.
It depends a little bit on what code you’re using to create the archive. The old Java compression classes are not so flexible as you need. You may use Apache Commons Compress. Michael Simons wrote this nice piece of code: ZipArchiveOutputStream ostream = …; // Your initialization code here ostream.setEncoding(“Cp437”); // This should handle your … Read more
Since you are in .NET 4.5, you can use the ZipArchive (System.IO.Compression) class to achieve this. Here is the MSDN documentation: (MSDN). Here is their example, it just writes text, but you could read in a .csv file and write it out to your new file. To just copy the file in, you would use … Read more
Take a look at Libarchive. I spent a lot of time seeking for a cross-platform and LGPL licensed library with convenient interface. This the best of all I’ve seen. Very easy and powerful tool. Originally designed for Unix-like systems but there’s also the Windows version.
I would use a progress bar but the ‘new’ (.net 4.5) library for zipfile from System.IO.Compression which replaced Ionic.Zip.ZipFile does not have a method to report progress? Is there a way around this? Should I be using a Thread? or DoWork? You really have two issues here: The .NET version of the ZipFile class does … Read more
As found as a comment on http://www.php.net/ziparchive: The following code can be used to get a list of all the file names in a zip file. <?php $za = new ZipArchive(); $za->open(‘theZip.zip’); for( $i = 0; $i < $za->numFiles; $i++ ){ $stat = $za->statIndex( $i ); print_r( basename( $stat[‘name’] ) . PHP_EOL ); } ?>
node-core has built in zip features: http://nodejs.org/api/zlib.html Use them: var zlib = require(‘zlib’); var gzip = zlib.createGzip(); var fs = require(‘fs’); var inp = fs.createReadStream(‘input.txt’); var out = fs.createWriteStream(‘input.txt.gz’); inp.pipe(gzip).pipe(out);