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• Xz - 03 Mac Os Update
• Xz - 03 Mac Os Pro
• Xz - 03 Mac Os Catalina

Today's release of Python 3.3 includes the lzma module in the standard library for LZMA/XZ files, but it didn't work 'out of the box' under Mac OS X 10.8 Mountain Lion - it requires XZ Utils. This is how I installed it.

Jul 27, 2017 Extract File Extention.XZ di Mac OS Sebelum melakukan Extract file XZ, pastikan kamu memiliki file yang berekstensi.xz karena jika tidak kamu tidak bisa extract file XZ (yaiyalah 😛 ). Anda harus menginstal XZ utils yakni semacam software tambahan untuk mengenali extensi tersebut di Mac OS anda. B1 Free Archiver opens/extracts xz/txz/tar.xz file on Mac. B1 Free Archiver is a free software for creating archive folder and extracting archive file. B1 Archiver works on all platforms - Windows, Linux, Mac and Android. The freeware supports most popular formats including xz/txz/tar.xz. B1 Free Archiver is compatible with: Mac OS X 10.9.

At the time of writing Python 3.3 doesn't come pre-compiled for Mac OS X 10.8 Mountain Lion (only older versions of OS X), so I built it from source (having installed XCode via the App Store for free). However, I had a warning about _lzma not being built, and the associated test_lzma.py was skipped.
You have to install the XZ Utils library as well, I opted to do this under my home directory:
$ curl -O http://tukaani.org/xz/xz-5.0.4.tar.gz
$ tar -zxvf xz-5.0.4.tar.gz
$ cd xz-5.0.4
$ ./configure --prefix=$HOME
$ make
$ make check
$ make install
Easy enough, and now (re)install Python 3.3 which I am also installing under my home directory:
$ curl -O http://www.python.org/ftp/python/3.3.0/Python-3.3.0.tgz

Xz - 03 Mac Os Update

$ tar -zxvf Python-3.3.0.tgz
$ cd Python-3.3.0

Xz - 03 Mac Os Pro

$ ./configure --prefix=$HOME
$ make
$ make test
$ make install
Done. Time for a quick check:
$ python3
Python 3.3.0 (default, Sep 29 2012, 19:41:44)
[GCC 4.2.1 Compatible Apple Clang 4.0 ((tags/Apple/clang-421.0.60))] on darwin
Type 'help', 'copyright', 'credits' or 'license' for more information.
>>> import lzma
>>> dir(lzma)
['CHECK_CRC32', 'CHECK_CRC64', 'CHECK_ID_MAX', 'CHECK_NONE', 'CHECK_SHA256', 'CHECK_UNKNOWN', 'FILTER_ARM', 'FILTER_ARMTHUMB', 'FILTER_DELTA', 'FILTER_IA64', 'FILTER_LZMA1', 'FILTER_LZMA2', 'FILTER_POWERPC', 'FILTER_SPARC', 'FILTER_X86', 'FORMAT_ALONE', 'FORMAT_AUTO', 'FORMAT_RAW', 'FORMAT_XZ', 'LZMACompressor', 'LZMADecompressor', 'LZMAError', 'LZMAFile', 'MF_BT2', 'MF_BT3', 'MF_BT4', 'MF_HC3', 'MF_HC4', 'MODE_FAST', 'MODE_NORMAL', 'PRESET_DEFAULT', 'PRESET_EXTREME', '_BUFFER_SIZE', '_MODE_CLOSED', '_MODE_READ', '_MODE_READ_EOF', '_MODE_WRITE', '__all__', '__builtins__', '__cached__', '__doc__', '__file__', '__initializing__', '__loader__', '__name__', '__package__', '_decode_filter_properties', '_encode_filter_properties', 'builtins', 'compress', 'decompress', 'io', 'is_check_supported', 'open']
>>> quit()
Next will be to explore if this is actually useful for things like compressed sequence files.
Note for older versions of Python (which don't come with the lzma module), you can install PylibLZMA instead (PylibLZMA SourceForge page), which requires LZMA Utils (although I haven't tried that yet - my first attempt failed at the compile stage). Update - could perhaps try PyLZMA too (PyLZMA GitHub page)? Note these don't seem to support the XZ format.
Update
I've started a backport of Python 3.3's lzma module, currently working on Python 3.1, 3.2 and 3.3 (Mac OS X and Linux), so that I can use both LZMA and XZ files on older versions of Python.

Xz - 03 Mac Os Catalina

Update
Fixed XY <-> XZ typos.
Update (Jan 2013)
I've just made the first public release of my lzma backport on PyPI, tested under Python 2.6, 2.7 and 3.0 to 3.3 on Mac OS X and Linux. Windows support is pending...

About the App

• App name: xz
• App description: General-purpose data compression with high compression ratio
• App website: http://tukaani.org/xz/

Install the App

1. Press Command+Space and type Terminal and press enter/return key.
2. Run in Terminal app:
   ruby -e '$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)' < /dev/null 2> /dev/null
   and press enter/return key.
   If the screen prompts you to enter a password, please enter your Mac's user password to continue. When you type the password, it won't be displayed on screen, but the system would accept it. So just type your password and press ENTER/RETURN key. Then wait for the command to finish.
3. Run:
   brew install xz

Done! You can now use xz.