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pyrpl-fpga / pyrpl

pyrpl turns your RedPitaya into a powerful DSP device, especially suitable as a lockbox in quantum optics experiments.
http://lneuhaus.github.io/pyrpl/
MIT License
139 stars 110 forks source link

paramiko.transport:ImportError: DLL load failed: The specified module could not be found #510

Open linhz0hz opened 6 months ago

linhz0hz commented 6 months ago

Hello, When using the old windows version of pyrpl, I got this error message: `ERROR:paramiko.transport:Unknown exception: DLL load failed: The specified module could not be found. ERROR:paramiko.transport:Traceback (most recent call last): ERROR:paramiko.transport: File "site-packages\paramiko\transport.py", line 1890, in run ERROR:paramiko.transport: File "site-packages\paramiko\transport.py", line 1988, in _negotiate_keys ERROR:paramiko.transport: File "site-packages\paramiko\kex_ecdh_nist.py", line 32, in start_kex ERROR:paramiko.transport: File "site-packages\paramiko\kex_ecdh_nist.py", line 51, in _generate_key_pair ERROR:paramiko.transport: File "site-packages\cryptography\hazmat\backends__init.py", line 15, in default_backend ERROR:paramiko.transport: File "c:\projects\pyinstaller\PyInstaller\loader\pyimod03_importers.py", line 627, in exec_module ERROR:paramiko.transport: File "site-packages\cryptography\hazmat\backends\openssl__init__.py", line 7, in ERROR:paramiko.transport: File "c:\projects\pyinstaller\PyInstaller\loader\pyimod03_importers.py", line 627, in exec_module ERROR:paramiko.transport: File "site-packages\cryptography\hazmat\backends\openssl\backend.py", line 53, in ERROR:paramiko.transport: File "c:\projects\pyinstaller\PyInstaller\loader\pyimod03_importers.py", line 627, in exec_module ERROR:paramiko.transport: File "site-packages\cryptography\hazmat\bindings\openssl\binding.py", line 13, in ERROR:paramiko.transport:ImportError: DLL load failed: The specified module could not be found. ERROR:paramiko.transport: Traceback (most recent call last): File "pyrpl\redpitaya.py", line 237, in start_ssh File "pyrpl\sshshell.py", line 53, in init__ File "site-packages\paramiko\client.py", line 331, in connect File "site-packages\paramiko\util.py", line 276, in retry_on_signal File "site-packages\paramiko\client.py", line 331, in socket.timeout: timed out

During handling of the above exception, another exception occurred:`

I believe this is related to this https://github.com/pyca/cryptography/issues/10388 , ultimately an old python version? I guess I have no control of the version as I am running a pre-packaged binary? I see that the pre-compiled windows binary is from 2017 on source-forge, maybe this should no longer be recommended program to use?

Dylan-Danese commented 6 months ago

Hey! We had the same error when launching the .exe, but managed to bypass it by launching it from the cmd instead. I also cloned the python repo, updated the depreciated pyqtgraph class "GraphicsWindow" to "GraphicsLayoutWidget" in all of the widget files (https://pyqtgraph.readthedocs.io/en/pyqtgraph-0.11.1/graphicswindow.html) and managed to make it run for python 3.9, although not sure of the stability of this yet though, but the oscilloscope and sweep works. I'm by no means good at python but figured it might help people here.