Log Message:
py-paramiko: updated to 2.6.0

2.6.0:
Add a new keyword argument to SSHClient.connect and Transport, \ 
disabled_algorithms, which allows selectively disabling one or more \ 
kex/key/cipher/etc algorithms. This can be useful when disabling algorithms your \ 
target server (or client) does not support cleanly, or to work around unpatched \ 
bugs in Paramiko’s own implementation thereof.

SSHClient.exec_command previously returned a naive ChannelFile object for its \ 
stdin value; such objects don’t know to properly shut down the remote end’s \ 
stdin when they .close(). This lead to issues (such as hangs) when running \ 
remote commands that read from stdin.

Add backwards-compatible support for the gssapi GSSAPI library, as the previous \ 
backend (python-gssapi) has since become defunct. This change also includes \ 
tests for the GSSAPI functionality.

Tweak many exception classes so their string representations are more \ 
human-friendly; this also includes incidental changes to some super() calls.