How to use Kria-PYNQ from the command line?

I recently installed Kria-PYNQ on my KV260, and it works fine from JupyterLab. But, I sometimes want to use PYNQ applications from the command line. When I was using PYNQ v2.6 on ZCU104, there were no problems in using them either from Jupyter or from the command line. However, I get the following error when Kria-PYNQ (or maybe PYNQ v2.7) is usrd from the command line.

ubuntu@kria:~$ sudo python3 
[sudo] password for ubuntu: 
Python 3.8.10 (default, Nov 26 2021, 20:14:08) 
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path.append('/usr/local/share/pynq-venv/lib/python3.8/site-packages')
>>> from pynq import Overlay
>>> ol = Overlay('project_1.bit')
/usr/local/share/pynq-venv/lib/python3.8/site-packages/pynq/pl_server/ UserWarning: No devices found, is the XRT environment sourced?
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/share/pynq-venv/lib/python3.8/site-packages/pynq/", line 336, in __init__
    super().__init__(bitfile_name, dtbo, partial=False, device=device)
  File "/usr/local/share/pynq-venv/lib/python3.8/site-packages/pynq/", line 111, in __init__
    device = Device.active_device
  File "/usr/local/share/pynq-venv/lib/python3.8/site-packages/pynq/pl_server/", line 94, in active_device
    raise RuntimeError("No Devices Found")
RuntimeError: No Devices Found

Is any additional installation for the XRT environment or anything needed? Please let me know any workaround for this problem.


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Hi there,

This is probably because from v2.7 we are running inside a virtual environment.

Instead of running python in sudo try:

sudo -i
source /etc/profile.d/


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Hi Shawn,

Thanks a lot for your prompt and useful reply! Yes, your suggestion works perfectly.

Thanks again.

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