ImportError: No module named IcePy in Raspberry Pi

pgaleas · November 2016

Hello,
I'm newby with Ice and I'm trying to run the python "Hello World" in my RaspberryPi.

I build a core-image-base (Yocto) with the following BBLAYERS:

BBLAYERS ?= " \
/home/jon/software/yocto/poky-jethro-2.0/meta \
/home/jon/software/yocto/poky-jethro-2.0/meta-yocto \
/home/jon/software/yocto/poky-jethro-2.0/meta-yocto-bsp \
/home/jon/software/yocto/meta-openembedded/meta-oe \
/home/jon/software/yocto/meta-openembedded/meta-filesystems \
/home/jon/software/yocto/meta-openembedded/meta-networking \
/home/jon/software/yocto/meta-openembedded/meta-python \
/home/jon/software/yocto/meta-sdr \
/home/jon/software/yocto/meta-raspberrypi \
"

I have the Server demo running on a standardr PC (java) of the same network.

When a run the Client.py in my Raspberry I get the following Error:

Traceback (most recent call last):
  File "Client.py", line 1, in <module>
    import Ice
  File "/usr/lib/python2.7/site-packages/Ice.py", line 47, in <module>
    import IcePy
ImportError: No module named IcePy

My sys.path print out:

root@raspberrypi2:~/development/python# python
Python 2.7.9 (default, Oct 26 2016, 17:30:13) 
[GCC 5.2.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.

import sys
sys.path

['', '/usr/lib/python27.zip', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/lib/python2.7/site-packages', '/usr/lib/python2.7/site-packages/gtk-2.0']

What I'm doing wrong?

Best regards
PGaleas

joegeorge · November 2016

Hi PGaleas,

It doesn't look like you are using our meta layer. You can find instructions for including our meta-layer on the Using Ice-E with Yocto page of our documenation.

You will also need to be sure you're including our python package as part of your build. Your local.conf file should contain:

IMAGE_INSTALL_append = " zeroc-ice zeroc-ice-python"

Cheers,
Joe

pgaleas · November 2016

Hi Joe,

I actually followed the instructions you mentioned. I copied an old BBLayer definition in my last post (sorry for the confusion).

So, my actual BBLAYERS includes meta-zeroc at the end of the string":

BBLAYERS ?= " \
  /home/pgaleas/software/yocto/poky-jethro-2.0/meta \
  /home/pgaleas/software/yocto/poky-jethro-2.0/meta-yocto \
  /home/pgaleas/software/yocto/poky-jethro-2.0/meta-yocto-bsp \
  /home/pgaleas/software/yocto/meta-openembedded/meta-oe \
  /home/pgaleas/software/yocto/meta-openembedded/meta-filesystems \
  /home/pgaleas/software/yocto/meta-openembedded/meta-networking \
  /home/pgaleas/software/yocto/meta-openembedded/meta-python \
  /home/pgaleas/software/yocto/meta-raspberrypi \
  /home/pgaleas/software/yocto/meta-sdr \
  /home/pgaleas/software/yocto/meta-zeroc \ 
"

I also include in following lines in the local.conf

IMAGE_INSTALL_append = " zeroc-ice zeroc-ice-python"
TOOLCHAIN_TARGET_TASK_append = " zeroc-ice-dev zeroc-ice-staticdev"
TOOLCHAIN_HOST_TASK_append  = " nativesdk-zeroc-ice-dev"

The Raspberry's folder /usr/lib/python2.7/site-packages contains the file IcePy.so.3.6.3
But when I try to import the Ice library in the python console, I got the same error I mentioned before:

root@raspberrypi2:/usr/lib/python2.7/site-packages# python
Python 2.7.9 (default, Oct 26 2016, 17:30:13) 
[GCC 5.2.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.

import Ice

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "Ice.py", line 47, in <module>
    import IcePy
ImportError: No module named IcePy

Any idea?
Thank you for the response.

Cheers
PGaleas

joegeorge · November 2016

This is an issue with the meta-zeroc layer. The extension should be named IcePy.so and not IcePy.so.3.6.3. I've updated our layer with a fix for this.

Please let me know if this resolves your issue.

pgaleas · November 2016

It works!
Thanks Joe.

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ImportError: No module named IcePy in Raspberry Pi

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