# Procedure for installing python libraries from source

**URL:** <https://forum.inductiveautomation.com/t/procedure-for-installing-python-libraries-from-source/26022>\
**Category:** Ignition\
**Created:** [June 21, 2019, 6:07pm UTC](https://forum.inductiveautomation.com/t/procedure-for-installing-python-libraries-from-source/26022 "2019-06-21T18:07:46Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [June 21, 2019, 7:07pm UTC](https://forum.inductiveautomation.com/t/procedure-for-installing-python-libraries-from-source/26022/2 "2019-06-21T19:07:39Z")

</div>

There’s actually a procedure you can use to use `pip` from within Jython to install packages, then link Ignition’s Jython lib to an-off-the-shelf Jython lib and use that…however, the article specifically calls out the `twilio` module as not working, because one of its dependencies, `cffi`, has C dependencies (IE, won’t work in Jython).

For posterity, here’s the procedure, copied verbatim from an internal document:  
0) On the server, install Java 8 if you haven’t already.

1. Download the full Jython 2.7.1 installer, and install. I installed to c:\jython2.7.1 for simplicity. Keep all other options default. Link: [http://search.maven.org/remotecontent?filepath=org/python/jython-installer/2.7.1/jython-installer-2.7.1.jar](http://search.maven.org/remotecontent?filepath=org/python/jython-installer/2.7.1/jython-installer-2.7.1.jar)
2. Make sure JAVA\_HOME points to the jre directory (tested with 8u191). If it’s not there, add the environment variable.
3. Open a CMD prompt in admin mode. (Not PowerShell) “cd” to the /bin
4. run “jython -m ensurepip” to install pip and setuptools
5. Shut down Ignition if it’s already running
6. In the CMD prompt, “cd” to the Ignition/user-lib/pylib folder
7. Delete the “site-packages” folder
8. Create a Junction link to the Jython site-packages directory: “mklink /J site-packages c:\jython2.7.1\Lib\site-packages”

---

_[View the full topic](https://forum.inductiveautomation.com/t/procedure-for-installing-python-libraries-from-source/26022)._