websockets version issue

[srs4511351]

With the current version of pyspectrum, websockets version must be >= 15.0.1.
In the current version of DietPi debian bookworm, python3-websockets version is 10.4-1

When I run pyspectrum, it prints this:

Traceback (most recent call last):
  File "/home/dietpi/pyspectrum/./src/pyspectrum.py", line 49, in <module>
    from webUI import WebSocketServer
  File "/home/dietpi/pyspectrum/src/webUI/WebSocketServer.py", line 22, in <module>
    raise ValueError(f"websockets version must be >= 15.0.1, got {websockets.__version__}")
ValueError: websockets version must be >= 15.0.1, got 10.4

What can be done about this? Must we install websockets from source, or can I run an older version of pyspectrum?

----Steve

[naj1024]

You can try using release V0.4.0-alpha (https://github.com/naj1024/pyspectrum/tree/V0.4.0-alpha) which is from last year.
I tend to run in a python virtual environment to avoid having to update any OS python versions, you never know what you might break. Normally develop in pycharm which takes care of most of the virtual environment for me. If you are not offay with virtual environements then try the earlier release.
I upgraded because it sorted a few bugs i was tracking down.

Just had a further look. i think i didn't change the websocket library until after V0.5.0-alpha (6th April this year) so you can try that one first. If nothing works, i.e. you don't get any spectrogram try the V0.4.0-alpha.

Assuming you cloned the repo:
git checkout V0.5.0-alpha

will put you on that release.

Sorry it took so long to spot the issue in github

[srs4511351]

git checkout V0.5.0-alpha works.
I do run a python virtual environment, but it is using the system's python3-websockets version 10.4-1
How do I get the python virtual environment to use websockets >= 15.0.1?

For me, there is seldom and issue with Python module versions unless the developer uses versions that I don't have.

[naj1024]

From my command history in the venv i used:

(venv) PS pyspectrum> pip install websockets>=15

You can also do the following to see what you have:

(venv) PS pyspectrum> pip list --format=freeze

I'm going to assume (!) that the search path will check the venv first then the system, suppose the pip list may tell us that.

[srs4511351]

When the package version of python3-websockets was installed, pip install websockets>=15.
I had to remove the package. pip install websockets>=15 installed after that.

Now, the current version of pyspectrum runs, but it is very slow. The display only updates every second or two, much slower than earlier versions.

[naj1024]

Probably due to the changes i made to perform overlapping fft's. More copying around. Only run it on my laptop which didn't see much of a slow down.
What are you running on?
Are you on the flask branch?
Not sure when i will get round to looking at this as i have some other work pending.

[srs4511351]

It is running on a Raspberry Pi 5.
My RPI is set up for SDR use. It runs very efficiently with applications that are not Python, some run 10% CPU load or less.
However, I need to have applications that are efficient.

[srs4511351]

I believe I am using the flask branch, as I did not specify one where I tried websockets>=15.
Don't hurry for me. I can use the V0.5.0-alpha branch.