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analogdevicesinc / libsmu

Software abstractions for the analog signal exploration tools.
http://analogdevicesinc.github.io/libsmu/
BSD 3-Clause "New" or "Revised" License
31 stars 31 forks source link

Installing libsmu .deb package on Ubuntu 18.04 (additional commands required) #170

Closed StefanMack closed 2 years ago

StefanMack commented 4 years ago

I installed the Debian package "libsmu-1.0.3-ubuntu-18.04-amd64.deb" on some lab machines and then installed "python3-pysmu_1.0.3-1-ubuntu-18.04-amd64.deb" there. In the end I tested this installation by loading the module "pysmu". The following error occurred on all computers when calling import pysmu under Python 3.69:

Python 3.6.9 (default, Jul 17 2020, 12:50:27) 
[GCC 8.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pysmu
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/pysmu/__init__.py", line 6, in <module>
    from .libsmu import *
ImportError: libsmu.so.1: cannot open shared object file: No such file or directory

It turned out that the following two Linux commands were missing in the previous installations:

sudo usermod -a -G plugdev <username>
sudo ldconfig

Only after entering these two commands "pysmu" could be imported without error message. Maybe these commands are missing in the above mentioned Debian packages.

AlexandraTrifan commented 3 years ago

Hi,

Thank you for the update. "sudo ldconfig" is already added in the README page for libsmu. We will also check the other command and update the README page as needed.

Thank you! -Alexandra