duplicity  0.8.18
About: duplicity offers encrypted (incremental) bandwidth-efficient backup using the rsync algorithm (requires Python).
  Fossies Dox: duplicity-0.8.18.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

duplicity Documentation

Some Fossies usage hints in advance:

  1. To see the Doxygen generated documentation please click on one of the items in the steelblue colored "quick index" bar above or use the side panel at the left which displays a hierarchical tree-like index structure and is adjustable in width.
  2. If you want to search for something by keyword rather than browse for it you can use the client side search facility (using Javascript and DHTML) that provides live searching, i.e. the search results are presented and adapted as you type in the Search input field at the top right.
  3. Doxygen doesn't incorporate all member files but just a definable subset (basically the main project source code files that are written in a supported language). So to search and browse all member files you may visit the Fossies duplicity-0.8.18.tar.gz contents page and use the Fossies standard member browsing features (also with source code highlighting and additionally with optional code folding).


Thank you for trying duplicity. To install, run:

python setup.py install

The build process can be also be run separately:

python setup.py build

The default prefix is /usr, so files are put in /usr/bin, /usr/share/man/, etc. An alternate prefix can be specified using the --prefix= option. For example:

python setup.py install --prefix=/usr/local
export PYTHONPATH='/usr/local/lib/python.x/site-packages/'
/usr/local/bin/duplicity -V`


  • Python 2.7, or 3.5 to 3.9
  • librsync v0.9.6 or later
  • GnuPG for encryption
  • fasteners 0.14.1 or later for concurrency locking
  • for scp/sftp -- python-paramiko
  • for ftp -- lftp version 3.7.15 or later
  • Boto 2.0 or later for single-processing S3 or GCS access (default)
  • Boto 2.1.1 or later for multi-processing S3 access
  • Boto 2.7.0 or later for Glacier S3 access
  • Boto3 0.3.1 or later

If you install from the source package, you will also need:

  • Python development files, normally found in module 'python-dev'.
  • librsync development files, normally found in module 'librsync-dev'.


For more information on downloading duplicity's source code from the code repository and developing for duplicity, see README-REPO.


For more information see the duplicity home page at:


or post to the mailing list at