# Import a java class in a python script - JAR directory?

**URL:** <https://forum.inductiveautomation.com/t/import-a-java-class-in-a-python-script-jar-directory/3587>\
**Category:** Ignition\
**Created:** [November 11, 2011, 11:23am UTC](https://forum.inductiveautomation.com/t/import-a-java-class-in-a-python-script-jar-directory/3587 "2011-11-11T11:23:12Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [November 11, 2011, 11:23am UTC](https://forum.inductiveautomation.com/t/import-a-java-class-in-a-python-script-jar-directory/3587/1 "2011-11-11T11:23:12Z")

</div>

I would like to import a java class in a python script.  
where is the directory to put my JAR ?

---

<div class="post-metadata">

**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [November 11, 2011, 2:43pm UTC](https://forum.inductiveautomation.com/t/import-a-java-class-in-a-python-script-jar-directory/3587/2 "2011-11-11T14:43:27Z")

</div>

You can stick them in your Java installation. I use the following location for a 32-bit Windows system.

`
.dll c:\Program Files\Java\jre6\bin\
.properties c:\Program Files\Java\jre6\lib\
.jar c:\Program Files\Java\jre6\lib\ext\`

You likely will need to update the CLASSPATH environment variable to add the location of the .jar file. And likely reboot to make it stick. 😒

---

<div class="post-metadata">

**Author:** ![Carl.Gould](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/carl.gould/32/7262_2.png) [@Carl.Gould](https://forum.inductiveautomation.com/u/Carl.Gould)\
**Post date:** [November 17, 2011, 10:20pm UTC](https://forum.inductiveautomation.com/t/import-a-java-class-in-a-python-script-jar-directory/3587/3 "2011-11-17T22:20:31Z")

</div>

The above approach will work for a single computer. If you only need it in the Gateway, this can work.

For a more robust solution, roll the jar into your own module and install it - this way it can hook into the web-launch system and get distributed to clients/designers if need be.