fs.sshfs

fs.sshfs

Requirements

PyFilesystem2
six
paramiko
property-cached

fs.sshfs supports all Python versions supported by PyFilesystem2: Python 2.7, and Python 3.5 onwards. Code should still be compatible with Python 3.4, but not tested anymore.

Installation

Install directly from PyPI, using pip:

$ pip install fs.sshfs

There is also a conda-forge package available:

$ conda install -c conda-forge fs.sshfs

Usage

Opener

Use fs.open_fs to open a filesystem with an SSH FS URL:

import fs
my_fs = fs.open_fs("ssh://[user[:password]@]host[:port]/[directory]")

The sftp scheme can be used as an alias for the ssh scheme in the FS URL. Additional argument can be passed to the SSHFS constructor as percent-encoded URL parameters (excepted policy). See section below for a list of all supported arguments.

Constructor

For a more granular way of connecting to an SSH server, use the fs.sshfs.SSHFS constructor, which signature is:

from fs.sshfs import SSHFS
my_fs = SSHFS(
  host, user=None, passwd=None, pkey=None, timeout=10, port=22,
  keepalive=10, compress=False, config_path='~/.ssh/config'
)

with each argument explained below:

• host: the name or IP address of the SSH server
• user: the username to connect with, defaults to the current user.
• passwd: an optional password, used to connect directly to the server or to decrypt the public key, if any given.
• pkey: a paramiko.PKey object, a path, or a list of paths to an SSH key.
• timeout: the timeout, in seconds, for networking operations.
• port: the port the SSH server is listening on.
• keepalive: the interval of time between keepalive packets, in seconds. Set to 0 to disable.
• compress: set to True to compress the communications with the server.
• config_path: the path to an OpenSSH configuration file.
• exec_timeout: the timeout, in seconds, for arbitrary SSH commands on the server.
• policy: a paramiko.MissingHostKeyPolicy instance, or None to use paramiko.AutoAddPolicy.

Additional keyword arguments will be passed to the underlying paramiko.SSHClient.connect call, taking precedence over implicitly derived arguments. Once created, the SSHFS filesystem behaves like any other filesystem (see the PyFilesystem2 documentation).

Files

SSHFS.openbin has the following extra options that can be passed as keyword arguments to control the file buffering:

• prefetch: enabled by default, use a background thread to prefetch the content of a file opened in reading mode. Does nothing for files in writing mode.
• pipelined: enable pipelined mode, avoid waiting for server answer between two uploaded chunks. Does nothing for files in reading mode.

Configuration

SSHFS are aware of SSH config files and as such, one of the hosts in the configuration file can be provided as the host argument for the filesystem to connect to the server with the proper configuration values.

Feedback

Found a bug ? Have an enhancement request ? Head over to the GitHub issue tracker of the project if you need to report or ask something. If you are filling in on a bug, please include as much information as you can about the issue, and try to recreate the same bug in a simple, easily reproductible situation.

Credits

fs.sshfs is developed and maintained by:

• Martin Larralde

The following people contributed to fs.sshfs:

• Reimar Bauer
• Paul Gessinger
• Mariusz Kryński
• Will McGugan
• Jeremy Nimmer
• Tim Nyborg
• Danica J. Sutherland
• John Vandenberg

This project obviously owes a lot to the PyFilesystem2 project and all its contributors.

See also

• fs, the core PyFilesystem2 library
• fs.archive, enhanced archive filesystems for PyFilesystem2
• fs.smbfs, PyFilesystem2 over SMB using pysmb