[ 10 auto_backup] pysftp version may block backup

[EBII]

hello
i just install auto_backup and i made pip install pysftp. It was the 2.9 version.
i can not connect to external storage with pysftp due to error: SSHException: No hostkey for host XXXX
after search around it seems due to update of pysftp
Change Log
0.2.9 (current, released 2016-07-04)
bugfix: correctly implement hostcheck. Now, be default pysftp will verify the host. See pysftp.CnOpts.hostkeys
added pysftp.Connection.remote_server_key - used to retrieve the remote hosts server key.

so i resolve my issue with
pip install pysftp==0.2.8

maybe we need to add destination storage public host key somewhere ?
regards

[lasley]

I was planning on updating auto_backup to use connector_sftp, which uses base_external_system and does include support for host key checking (as well as the overriding of it)

[github-actions]

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