Eclipse + PyDev + Kivy: bogus error msg on Property import

[BobB]

I set up Eclipse with PyDev and followed Cam Jackson's very helpful How-To including checks for import errors:

http://www.ocularsoftware.com/2012/11/how-to-use-pydev-to-develop-and-run-kivy-applications-on-windows/

Everything worked well with super simple examples but now I'm adding a Kivy ObjectProperty and getting an import error for that import only.

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.widget import Widget
from kivy.properties import ObjectProperty       <----- "Unresolved import" error here only
from kivy.vector import Vector

But the good news is that the error is bogus.  The .py and .kv files work together to produce the desired result.
Anyone else experiencing this?
BobB

[Thomas Pietrowski]

Have you installed it on Windows? Well, in that case you might forget to compile some modules, because the property module is of of the modules using Cython.

As the rest of the modules are found, I assue you set up the rest very well.

[Mathieu Virbel]

Hi,

Unlike the others files, properties is a python extension. Maybe the python in pydev is not able to load it. I don't know how pydev is working internally.

Maybe you can check the behavior with other python extension such as kivy.graphics.instructions etc.

Mathieu

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[Thomas Pietrowski]

Well, I'm using PyDev all the time and it is working very well. It also shows class's and functions compiled into *.so's.

I just had to set up PyDev to use python of the Kivy bundle and add the kivy dir to the import dirs in it's settings. (Not using the howto mentioned above)

In Ubuntu I didn't need any additional modifications using our PPA.

[Tyler Conrad]

I have the same issue with eclipse on Ubuntu.  As a work around to get rid of the import error you can type:

#

for a comment then press ctrl-1 and select UnresolvedImport.  You end up with a comment on that line that makes eclipse ignore the error:

from kivy.properties import ObjectProperty # @UnresolvedImport

[Thomas Pietrowski]

Which kivy version are you using?

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[Tyler Conrad]

Looked into this and found the problem.  In Eclipse under Preferences/Pydev/Interpreter-Python/Libraries:

/usr/local/lib/python2.7/dist-packages

is included by the 'Auto Config' interpreter setup - so you'd expect eclipse to find the kivy source here.

But looks like you need to point eclipse at the 'kivy' sub-folder just have to add:

/usr/local/lib/python2.7/dist-packages/kivy

by clicking new folder for the included libraries.

I was only including the source from the local git clone - not the built package.

Kivy v1.6.1-dev

[Thomas Pietrowski]

In case you want to use the latest code you can also use our daily PPA, where Kivy is installed into /usr/lib, etc.

However, great to hear that you found a solution for it.

[Tyler Conrad]

I though that fixed it but turns out it was just taking a while for the parser to refresh...

I'll check out the PPA.

Thanks.

[BobB]

Further information but not a solution:

I have both Kivy 1.5.1 and 1.6.0 installed on a Windows 7 laptop.  Both were downloaded and installed following the Windows instructions in kivy.org.
Eclipse is the IDE employed with PyDev on top and with the tweaks as outlined in the www.ocularsoftware.com article.  I can switch between 1.5.1 and 1.6.0
pretty quickly by these actions:

Python file:  swap "kivy.require('1.5.1')" with "kivy.require('1.6.0')"
.kv file: swap "#:kivy1.5.1" with "#:kivy 1.6.0"
In Eclipse (as PyDev) follow Window | Preferences then click on PyDev and select "Interpreter -- Python": promote your chosen version to the top of the
interpreter heap which will also swap libraries and the environment.  Click Apply and make sure is works (click twice to maybe force an interpreter choice.)

Whether going from 1.5.1 to 1.6.0 or vice versa,  I can get the Unresolved import message on the Property line.  Restarting PyDev if in version 1.5.1 generally removes the error.  Restarting if in version 1.6.0 doesn't remove the error.  But, again, the error is bogus and the program executes nicely.
Maybe it's time to move on as if nothing is weird until 1.6.1... is available.

[Prashant Patel]

Hi , I solved this by adding kivy.properities in forcebuiltin.

Go to option Eclips - preference -python interpreter- force builtin.