Wind River Support Network


LIN8-4040 : python3 does not work in a multilib environment

Created: Jun 27, 2016    Updated: Dec 3, 2018
Resolved Date: Jun 28, 2016
Found In Version:,
Fix Version:
Severity: Standard
Applicable for: Wind River Linux 8
Component/s: Build & Config


When building and adding python3 to an multilib environment (tested on qemux86-64) it fails to start on target. python3 does not find its libraries that is located in the directory /usr/lib64/. Instead it looks for the libraries in the directory /usr/lib


This is probably not a good workaround but to get python3 to start this works:
root@qemu0:~# ln -s /usr/lib64/python3.4 /usr/lib/
root@qemu0:~# python3
Python 3.4.3 (default, Jun 27 2016, 22:09:03) 
[GCC 5.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

Steps to Reproduce

Configure environment:
/work/windriver/wrlinux_800/wrlinux-8/wrlinux/configure --with-board=qemux86-64 --enable-ccache=yes --enable-kernel=standard --enable-rootfs=glibc-small --with-ccache-dir=/work/yocto/ccache --with-sstate-dir=/work/yocto/sstate-cache --enable-prserver=no --enable-buildhist=yes --enable-reconfig --enable-buildtools=no --enable-buildtools=no --with-rcpl-version=0006

Add python and python3 to image:
make python.addpkg
make python3.addpkg


Start target:
make start-target

Try to start python3:
root@qemu0:~# python3
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: Py_Initialize: Unable to get the locale encoding
ImportError: No module named 'encodings'

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