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
<[email protected]> 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_13.2/
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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