lzma

I've already posted this question on the authors website , but I thought I might ask here as well. I've been trying to install pylzma with this setup: Windows 7 x64 Python 2.6.6 x64 the amd64 compiler coming from windows server 2003 sdk cloned the git repo git://github.com/fancycode/pylzma.git With a simple easy_install pylzma I got this: cl : Command line warning D9025 : overriding '/MD' with '/MT' pylzma.c src/pylzma/pylzma.c(85) : warning C4244: '=' : conversion from 'Py_ssize_t' to 'int', possible loss of data src/pylzma/pylzma.c(102) : error C2275: 'CSha256' : illegal use of this type as

http://www.7-zip.org/sdk.html I can uses it compress a file, but can not find function of compress a Folder Arnaud Bouchez You'll have to create a .7z archive, then include all files of the folder within. There is no direct "folder" compression: just compression of files. If you store a (relative) folder name within the file name (e.g. 'FolderName\FileName'), the folder 'FolderName' will appear within the archive. You have within the SDK a ANSI-C compatible source code for 7z decompression with example. You'll have to adapt it to add all files of the folder to the archive (using FindFirst /

TLDR; Of the various compression algorithms available in python gzip , bz2 , lzma , etc, which has the best decompression performance? Full discussion: Python 3 has various modules for compressing/decompressing data including gzip , bz2 and lzma . gzip and bz2 additionally have different compression levels you can set. If my goal is to balance file size (/compression ratio) and decompression speed (compression speed is not a concern), which is going to be the best choice? Decompression speed is more important than file size, but as the uncompressed files in question would be around 600-800MB

I need to open a .bi5 file and read the contents to cut a long story short. The problem: I have tens of thousands of .bi5 files containing time-series data that I need to decompress and process (read, dump into pandas). I ended up installing Python 3 (I use 2.7 normally) specifically for the lzma library, as I ran into compiling nightmares using the lzma back-ports for Python 2.7, so I conceded and ran with Python 3, but with no success. The problems are too numerous to divulge, no one reads long questions! I have included one of the .bi5 files, if someone could manage to get it into a Pandas

I found in this thread link of the delphi-zip library that has implementation of LZMA. But I can't make proper use of Decompression from it. Can some one write a little decompression sample for me, using this library? Here is my code, it works for compression but didn't work for decompression and return 0 size uses System.Zip.LZMA; .... procedure TForm2.CompressProgress(Sender: TObject; const aPosition, aSize, aCompressedSize: UInt64); begin end; procedure TForm2.DecompressProgress(Sender: TObject; const aPosition, aSize: UInt64); begin end; procedure TForm2.CompressButton1Click(Sender:

I am trying to use the bz2 and/or lzma packages in python. I am trying to compress a database dump in csv format and then put it to a zip file. I got it to work with one-shot compression with both the packages. Code for which looks like this: with ZipFile('something.zip', 'w') as zf: content = bz2.compress(bytes(csv_string, 'UTF-8')) # also with lzma zf.writestr( 'something.csv' + '.bz2', content, compress_type=ZIP_DEFLATED ) When I try to use incremental compression then it creates a .zip file which when I try to extract keeps giving some archive file recursively. Code for which looks like

Is there any Library in Delphi to handle LZMA (or 7zip)files including creating self extracting EXEs There are some sources code at 7zip.org in (c++ java c#) but i want them in delphi BUT i want something which is stand alone (No DLLs) there are two solutions: 1) use the into native pascal translated sdk: Pascal LZMA SDK Source Download 2) you can compile the c version of the sdk into obj files and link them to your delphi project. this one requires a translation of the header files to delphi and it requires lots of c knowledge. LZMA SDK Inno setup have delphi source code to encode and decode

I'm experimenting with the lzma module in Python 2.7.6 to see if I could create compressed files using the XZ format for a future project that will make use of it. My code used during the experiment was: import lzma as xz in_file = open('/home/ki2ne/Desktop/song.wav', 'rb') input_data = in_file.read() compressed_data = xz.compress(input_data) out_file = open('/home/ki2ne/Desktop/song.wav.xz', 'wb') in_file.close() out_file.close() and I noticed there were two different checksums (MD5 and SHA256) from the resulting file compared to when I used the plain xz (although I could decompress fine with