keyring (23.8.2)

Published 2 years ago by guillem

Installation

pip install --extra-index-url https://git.guillemborrell.es/api/packages/guillem/pypi/simple keyring

About this package

Store and access your passwords safely.

.. image:: https://img.shields.io/pypi/v/keyring.svg
:target: PyPI link_

.. image:: https://img.shields.io/pypi/pyversions/keyring.svg
:target: PyPI link_

.. _PyPI link: https://pypi.org/project/keyring

.. image:: https://github.com/jaraco/keyring/workflows/tests/badge.svg
:target: https://github.com/jaraco/keyring/actions?query=workflow%3A%22tests%22
:alt: tests

.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
:target: https://github.com/psf/black
:alt: Code style: Black

.. image:: https://readthedocs.org/projects/keyring/badge/?version=latest
:target: https://keyring.readthedocs.io/en/latest/?badge=latest

.. image:: https://img.shields.io/badge/skeleton-2022-informational
:target: https://blog.jaraco.com/skeleton

.. image:: https://tidelift.com/badges/package/pypi/keyring
:target: https://tidelift.com/subscription/pkg/pypi-keyring?utm_source=pypi-keyring&utm_medium=readme

.. image:: https://badges.gitter.im/jaraco/keyring.svg
:alt: Join the chat at https://gitter.im/jaraco/keyring
:target: https://gitter.im/jaraco/keyring?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge

The Python keyring library provides an easy way to access the
system keyring service from python. It can be used in any
application that needs safe password storage.

These recommended keyring backends are supported:

  • macOS Keychain <https://en.wikipedia.org/wiki/Keychain_%28software%29>_
  • Freedesktop Secret Service <http://standards.freedesktop.org/secret-service/>_ supports many DE including
    GNOME (requires secretstorage <https://pypi.python.org/pypi/secretstorage>_)
  • KDE4 & KDE5 KWallet <https://en.wikipedia.org/wiki/KWallet>_
    (requires dbus <https://pypi.python.org/pypi/dbus-python>_)
  • Windows Credential Locker <https://docs.microsoft.com/en-us/windows/uwp/security/credential-locker>_

Other keyring implementations are available through Third-Party Backends_.

Installation - Linux

On Linux, the KWallet backend relies on dbus-python_, which does not always
install correctly when using pip (compilation is needed). For best results,
install dbus-python as a system package.

.. _dbus-python: https://gitlab.freedesktop.org/dbus/dbus-python

Compatibility - macOS

macOS keychain support macOS 11 (Big Sur) and later requires Python 3.8.7
or later with the "universal2" binary. See
#525 <https://github.com/jaraco/keyring/issues/525>_ for details.

Using Keyring

The basic usage of keyring is pretty simple: just call
keyring.set_password and keyring.get_password::

>>> import keyring
>>> keyring.set_password("system", "username", "password")
>>> keyring.get_password("system", "username")
'password'

Command-line Utility

Keyring supplies a keyring command which is installed with the
package. After installing keyring in most environments, the
command should be available for setting, getting, and deleting
passwords. For more information on usage, invoke with no arguments
or with --help as so::

$ keyring --help
$ keyring set system username
Password for 'username' in 'system':
$ keyring get system username
password

The command-line functionality is also exposed as an executable
package, suitable for invoking from Python like so::

$ python -m keyring --help
$ python -m keyring set system username
Password for 'username' in 'system':
$ python -m keyring get system username
password

Configuring

The python keyring lib contains implementations for several backends. The
library will attempt to
automatically choose the most suitable backend for the current
environment. Users may also specify the preferred keyring in a
config file or by calling the set_keyring() function.

Config file path

The configuration is stored in a file named "keyringrc.cfg"
found in a platform-specific location. To determine
where the config file is stored, run the following::

python -c "import keyring.util.platform_; print(keyring.util.platform_.config_root())"

Some keyrings also store the keyring data in the file system.
To determine where the data files are stored, run::

python -c "import keyring.util.platform_; print(keyring.util.platform_.data_root())"

Config file content

To specify a keyring backend, set the default-keyring option to the
full path of the class for that backend, such as
keyring.backends.OS_X.Keyring.

If keyring-path is indicated, keyring will add that path to the Python
module search path before loading the backend.

For example, this config might be used to load the
SimpleKeyring from the simplekeyring module in
the ./demo directory (not implemented)::

[backend]
default-keyring=simplekeyring.SimpleKeyring
keyring-path=demo

Third-Party Backends

In addition to the backends provided by the core keyring package for
the most common and secure use cases, there
are additional keyring backend implementations available for other
use-cases. Simply install them to make them available:

  • keyrings.cryptfile <https://pypi.org/project/keyrings.cryptfile>_
    • Encrypted text file storage.
  • keyring_jeepney <https://pypi.org/project/keyring_jeepney>__ - a
    pure Python backend using the secret service DBus API for desktop
    Linux.
  • keyrings.alt <https://pypi.org/project/keyrings.alt>_ - "alternate",
    possibly-insecure backends, originally part of the core package, but
    available for opt-in.
  • gsheet-keyring <https://pypi.org/project/gsheet-keyring>_
    • a backend that stores secrets in a Google Sheet. For use with
      ipython-secrets <https://pypi.org/project/ipython-secrets>_.
  • bitwarden-keyring <https://pypi.org/project/bitwarden-keyring/0.1.0/>_
    • a backend that stores secrets in the BitWarden <https://bitwarden.com/>_
      password manager.
  • sagecipher <https://pypi.org/project/sagecipher>_ - an encryption
    backend which uses the ssh agent protocol's signature operation to
    derive the cipher key.
  • keyrings.osx_keychain_keys <https://pypi.org/project/keyrings.osx-keychain-keys>_
    • OSX keychain key-management, for private, public and symmetric keys.

Write your own keyring backend

The interface for the backend is defined by keyring.backend.KeyringBackend.
Every backend should derive from that base class and define a priority
attribute and three functions: get_password(), set_password(), and
delete_password(). The get_credential() function may be defined if
desired.

See the backend module for more detail on the interface of this class.

Keyring employs entry points to allow any third-party package to implement
backends without any modification to the keyring itself. Those interested in
creating new backends are encouraged to create new, third-party packages
in the keyrings namespace, in a manner modeled by the keyrings.alt package <https://github.com/jaraco/keyrings.alt>_. See the
setup.cfg file
in that project for a hints on how to create the requisite entry points.
Backends that prove essential may be considered for inclusion in the core
library, although the ease of installing these third-party packages should
mean that extensions may be readily available.

To create an extension for Keyring, please submit a pull request to
have your extension mentioned as an available extension.

Runtime Configuration

Keyring additionally allows programmatic configuration of the
backend calling the api set_keyring(). The indicated backend
will subsequently be used to store and retrieve passwords.

To invoke set_keyring::

# define a new keyring class which extends the KeyringBackend
import keyring.backend

class TestKeyring(keyring.backend.KeyringBackend):
    """A test keyring which always outputs same password
    """
    priority = 1

    def set_password(self, servicename, username, password):
        pass

    def get_password(self, servicename, username):
        return "password from TestKeyring"

    def delete_password(self, servicename, username):
        pass

# set the keyring for keyring lib
keyring.set_keyring(TestKeyring())

# invoke the keyring lib
try:
    keyring.set_password("demo-service", "tarek", "passexample")
    print("password stored successfully")
except keyring.errors.PasswordSetError:
    print("failed to store password")
print("password", keyring.get_password("demo-service", "tarek"))

Disabling Keyring

In many cases, uninstalling keyring will never be necessary.
Especially on Windows and macOS, the behavior of keyring is
usually degenerate, meaning it will return empty values to
the caller, allowing the caller to fall back to some other
behavior.

In some cases, the default behavior of keyring is undesirable and
it would be preferable to disable the keyring behavior altogether.
There are several mechanisms to disable keyring:

  • Uninstall keyring. Most applications are tolerant to keyring
    not being installed. Uninstalling keyring should cause those
    applications to fall back to the behavior without keyring.
    This approach affects that Python environment where keyring
    would otherwise have been installed.

  • Configure the Null keyring in the environment. Set
    PYTHON_KEYRING_BACKEND=keyring.backends.null.Keyring
    in the environment, and the Null (degenerate) backend
    will be used. This approach affects all uses of Keyring where
    that variable is set.

  • Permanently configure the Null keyring for the user by running
    keyring --disable or python -m keyring --disable.
    This approach affects all uses of keyring for that user.

Altering Keyring Behavior

Keyring provides a mechanism to alter the keyring's behavior through
environment variables. Each backend implements a
KeyringBackend.set_properties_from_env, which
when invoked will find all environment variables beginning with
KEYRING_PROPERTY_{NAME} and will set a property for each
{NAME.lower()} on the keyring. This method is invoked during
initialization for the default/configured keyring.

This mechanism may be used to set some useful values on various
keyrings, including:

  • keychain; macOS, path to an alternate keychain file
  • appid; Linux/SecretService, alternate ID for the application

Using Keyring on Ubuntu 16.04

The following is a complete transcript for installing keyring in a
virtual environment on Ubuntu 16.04. No config file was used::

$ sudo apt install python3-venv libdbus-glib-1-dev
$ cd /tmp
$ pyvenv py3
$ source py3/bin/activate
$ pip install -U pip
$ pip install secretstorage dbus-python
$ pip install keyring
$ python

import keyring
keyring.get_keyring()
<keyring.backends.SecretService.Keyring object at 0x7f9b9c971ba8>
keyring.set_password("system", "username", "password")
keyring.get_password("system", "username")
'password'

Using Keyring on headless Linux systems

It is possible to use the SecretService backend on Linux systems without
X11 server available (only D-Bus is required). In this case:

  • Install the GNOME Keyring_ daemon.

  • Start a D-Bus session, e.g. run dbus-run-session -- sh and run
    the following commands inside that shell.

  • Run gnome-keyring-daemon with --unlock option. The description of
    that option says:

    Read a password from stdin, and use it to unlock the login keyring
    or create it if the login keyring does not exist.
    

    When that command is started, enter a password into stdin and
    press Ctrl+D (end of data). After that, the daemon will fork into
    background (use --foreground option to block).

  • Now you can use the SecretService backend of Keyring. Remember to
    run your application in the same D-Bus session as the daemon.

.. _GNOME Keyring: https://wiki.gnome.org/Projects/GnomeKeyring

Using Keyring on headless Linux systems in a Docker container

It is possible to use keyring with the SecretService backend in Docker containers as well.
All you need to do is install the necessary dependencies and add the --privileged flag
to avoid any Operation not permitted errors when attempting to unlock the system's keyring.

The following is a complete transcript for installing keyring on a Ubuntu 18:04 container::

docker run -it -d --privileged ubuntu:18.04

$ apt-get update
$ apt install -y gnome-keyring python3-venv python3-dev
$ python3 -m venv venv
$ source venv/bin/activate # source a virtual environment to avoid polluting your system
$ pip3 install --upgrade pip
$ pip3 install keyring
$ dbus-run-session -- sh # this will drop you into a new D-bus shell
$ echo 'somecredstorepass' | gnome-keyring-daemon --unlock # unlock the system's keyring

$ python

import keyring
keyring.get_keyring()
<keyring.backends.SecretService.Keyring object at 0x7f9b9c971ba8>
keyring.set_password("system", "username", "password")
keyring.get_password("system", "username")
'password'

Integration

API

The keyring lib has a few functions:

  • get_keyring(): Return the currently-loaded keyring implementation.
  • get_password(service, username): Returns the password stored in the
    active keyring. If the password does not exist, it will return None.
  • get_credential(service, username): Return a credential object stored
    in the active keyring. This object contains at least username and
    password attributes for the specified service, where the returned
    username may be different from the argument.
  • set_password(service, username, password): Store the password in the
    keyring.
  • delete_password(service, username): Delete the password stored in
    keyring. If the password does not exist, it will raise an exception.

In all cases, the parameters (service, username, password)
should be Unicode text.

Exceptions

The keyring lib raises following exceptions:

  • keyring.errors.KeyringError: Base Error class for all exceptions in keyring lib.
  • keyring.errors.InitError: Raised when the keyring cannot be initialized.
  • keyring.errors.PasswordSetError: Raised when password cannot be set in the keyring.
  • keyring.errors.PasswordDeleteError: Raised when the password cannot be deleted in the keyring.

Get Involved

Python keyring lib is an open community project and eagerly
welcomes contributors.

For Enterprise

Available as part of the Tidelift Subscription.

This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.

Learn more <https://tidelift.com/subscription/pkg/pypi-PROJECT?utm_source=pypi-PROJECT&utm_medium=referral&utm_campaign=github>_.

Security Contact

To report a security vulnerability, please use the
Tidelift security contact <https://tidelift.com/security>_.
Tidelift will coordinate the fix and disclosure.

Security Considerations

Each builtin backend may have security considerations to understand
before using this library. Authors of tools or libraries utilizing
keyring are encouraged to consider these concerns.

As with any list of known security concerns, this list is not exhaustive.
Additional issues can be added as needed.

  • macOS Keychain

    • Any Python script or application can access secrets created by
      keyring from that same Python executable without the operating
      system prompting the user for a password. To cause any specific
      secret to prompt for a password every time it is accessed, locate
      the credential using the Keychain Access application, and in
      the Access Control settings, remove Python from the list
      of allowed applications.
  • Freedesktop Secret Service

    • No analysis has been performed
  • KDE4 & KDE5 KWallet

    • No analysis has been performed
  • Windows Credential Locker

    • No analysis has been performed

Making Releases

This project makes use of automated releases continuous
integration. The
simple workflow is to tag a commit and push it to Github. If it
passes tests in CI, it will be automatically deployed to PyPI.

Other things to consider when making a release:

  • Check that the changelog is current for the intended release.

Running Tests

Tests are continuously run in Github Actions.

To run the tests locally, install and invoke
tox <https://pypi.org/project/tox>_.

Background

The project was based on Tarek Ziade's idea in this post. Kang Zhang
initially carried it out as a Google Summer of Code
project, and Tarek
mentored Kang on this project.

.. _this post: http://tarekziade.wordpress.com/2009/03/27/pycon-hallway-session-1-a-keyring-library-for-python/
.. _Google Summer of Code: http://socghop.appspot.com/

Requirements

Requires Python: >=3.7
Details
PyPI
2 years ago
63
Kang Zhang
34 KiB
Assets (1)
Versions (1) View all
23.8.2 on 2022-08-26