If you get the following error when you install the odoo backup plugin:

Odoo Server Error

‚This module needs pysftp to automaticly write backups to the FTP through SFTP. Please install pysftp on your system. (sudo pip install pysftp)‘)
ImportError: This module needs pysftp to automaticly write backups to the FTP through SFTP. Please install pysftp on your system. (sudo pip install pysftp)

You need to manually install pysftp module.

First download the module:

wget https://pypi.python.org/packages/36/60/45f30390a38b1f92e0a8cf4de178cd7c2bc3f874c85430e40ccf99df8fe7/pysftp-0.2.9.tar.gz
tar xvzf pysftp-0.2.9.tar.gz
rm pysftp-0.2.9.tar.gz

Then install libffi:

sudo apt-get install libffi-dev

move into the exctracted pysftp-0.2.9 directory and run:

sudo python setup.py install

and finally restart odoo:

sudo service odoo-server restart

That should fix the issue

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