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Editorial Team
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Asked: 2026-05-23T20:17:50+00:00

I know that I can install Jython with Java and that I can use

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I know that I can install Jython with Java and that I can use Jython where I use Python. The Jython shell is working fine.

In Jython, how can I install libraries like lxml, Scrappy and BeautifulSoup that I’d normally install via pip or easy_install

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  1. Editorial Team

    Some Python modules, like lxml, have required components in C. These won’t work in Jython.

    Most Python packages will work fine, and you can install them using the same tools as you use in CPython. This is described in Appendix A of Jython Book:

    To get setuptools, download ez_setup.py from
    http://peak.telecommunity.com/dist/ez_setup.py. Then, go to the
    directory where you left the downloaded file and execute:

    $ jython ez_setup.py

    [The easy_install script will be] installed to the bin directory of
    the Jython installation (/home/lsoto/jython2.5.0/bin in the example
    above). If you work frequently with Jython, it’s a good idea to
    prepend this directory to the PATH environment variable, so you don’t
    have to type the whole path each time you want to use easy_install or
    other scripts installed to this directory.

    Testing it myself, after installing setuptools in Jython, pip installed correctly:

    $ sudo /usr/bin/jython2.5.2b1/bin/easy_install pip
Searching for pip
[...]
Installing pip-2.5 script to /usr/bin/jython2.5.2b1/bin
Installing pip script to /usr/bin/jython2.5.2b1/bin

Installed /usr/bin/jython2.5.2b1/Lib/site-packages/pip-1.0.2-py2.5.egg
Processing dependencies for pip
Finished processing dependencies for pip

$ sudo /usr/bin/jython2.5.2b1/bin/pip install bottle
Downloading/unpacking bottle
  Downloading bottle-0.9.6.tar.gz (45Kb): 45Kb downloaded
  Running setup.py egg_info for package bottle
    Installing collected packages: bottle
  Running setup.py install for bottle
Successfully installed bottle
Cleaning up...

$ jython
Jython 2.5.2b1 (Release_2_5_2beta1:7075, Jun 28 2010, 07:44:20) 
[Java HotSpot(TM) 64-Bit Server VM (Apple Inc.)] on java1.6.0_26
Type "help", "copyright", "credits" or "license" for more information.
>>> import bottle
>>> bottle
<module 'bottle' from '/usr/bin/jython2.5.2b1/Lib/site-packages/bottle$py.class'>
>>>
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