Today a package update from an openSUSE repository has been installed here as python-paramiko-2.0.0-45.1 and now pyhoca-gui is running without these error messages and apparently fully functional.
Problem solved, case closed. Thank you for your time and explanation.
On Thu, 14 Jul 2016 12:42:26 +0200, Mike Gabriel <mike.gabriel@das-netzwerkteam.de> wrote:
Control: tags -1 not-a-bug
On So 10 Jul 2016 15:12:19 CEST, Albrecht Kolthoff wrote:
Package: pyhoca-gui Version: 0.5.0.6-0.0
While the x2goserver and x2goclient packages are running fine on my machines (server: OpenSUSE Leap 42.1, client: OpenSUSE 13.2), the pyhoca-gui package can't be installed from the x2go repository: http://packages.x2go.org/opensuse/13.2/main/x86_64/
The same applies to the version in the heuler repository which contains nightly builds, as far as I understand. In both cases the package carries a dependency on python-wxWidgets-2_9 which can't be fulfilled by the OpenSUSE repositories; these offer only the 3_0 and alternatively the 2_8 packages.
The OpenSUSE Build service version (which is some minor versions behind the current ones on the x2go project server) actually has a 3_0 dependency (instead of 2_9) and can be installed: http://download.opensuse.org/repositories/X11:/RemoteDesktop:/x2go/openSUSE_...
But: this version refuses to run. When started from a terminal command line, it throws these errors:
ak@tantalus:~> pyhoca-gui Traceback (most recent call last): File "/usr/bin/pyhoca-gui", line 35, in <module> from pyhoca.wxgui.launcher import PyHocaGUI_Launcher File "/usr/lib/python2.7/site-packages/pyhoca/wxgui/launcher.py", line 38, in <module> from x2go import X2GOCLIENT_OS File "/usr/lib/python2.7/site-packages/x2go/__init__.py", line 189, in <module> from defaults import X2GOCLIENT_OS File "/usr/lib/python2.7/site-packages/x2go/defaults.py", line 388, in <module> RSAHostKey = paramiko.RSAKey.generate(RSAKEY_STRENGTH) File "/usr/lib/python2.7/site-packages/paramiko/rsakey.py", line 156, in generate public_exponent=65537, key_size=bits, backend=default_backend() File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/__init__.py", line 35, in default_backend _default_backend = MultiBackend(_available_backends()) File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/__init__.py", line 22, in _available_backends "cryptography.backends" AttributeError: 'EntryPoint' object has no attribute 'resolve'
Which leads to the situation, that pyhoca-gui can't be run on OpenSUSE at the moment. Which I regret.
This seems to be an issue buried in Python Paramiko and they way it is packaged for openSUSE. PyHoca-GUI relies on a working Paramiko Python module. What it does above is
paramiko.RSAKey.generate(RSAKEY_STRENGTH)
And this call somehow fails. Please get this fixed for your distro and then pyhoca-gui will (hopefully) work.
Mike
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