[Python-modules-team] Bug#947470: paramiko: [Py3] TypeError: a bytes-like object is required, not 'str' in pkey.write_private_key()

[Mike Gabriel]

Package: src:paramiko
Version: 2.6.0-1
Severity: important
Control: tags -1 patch
Control: forwarded -1 https://github.com/paramiko/paramiko/pull/1583

With the above Python Paramiko version (when used under Python3),  
writing of SSH private keys to the file system currently fails with  
this Python exception:

```
   File  
"<local-path>/pyhoca-gui.upstream/pyhoca-gui/x2go/backends/terminal/plain.py",  
line 936, in share_local_folder
     _auth_rsakey.write_private_key(_tmp_io_object)
   File "/usr/lib/python3/dist-packages/paramiko/rsakey.py", line 154,  
in write_private_key
     password=password,
   File "/usr/lib/python3/dist-packages/paramiko/pkey.py", line 367,  
in _write_private_key
     serialization.Encoding.PEM, format, encryption
TypeError: a bytes-like object is required, not 'str'
```

I filed a PR upstream that fixes the issue:
https://github.com/paramiko/paramiko/pull/1583

As Paramiko upstream is really slow with accepting code changes,  
please consider cherry-pick the patch to the Debian paramiko package.

Currently, local folder sharing is broken in Python X2Go because of this.

Thanks+Greets,
Mike
-- 

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