Store and access your passwords safely.
The Python keyring lib provides an easy way to access the system keyring service from python. It can be used in any application that needs safe password storage.
The keyring library is licensed under both the MIT license and the PSF license.
These recommended keyring backends are supported by the Python keyring lib:
Mac OS X Keychain
Other keyring implementations are provided in the keyrings.alt package.
Install from Index
Install using your favorite installer. For example:
$ pip install keyring
On Linux, the recommended keyring relies on SecretStorage, which in turn relies on dbus-python, but dbus-python does not install correctly when using the Python installers, so dbus-python must be installed as a system package. See the SecretStorage GitHub repo for details.
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'
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
The python keyring lib contains implementations for several backends. The library will automatically choose the keyring that is most suitable for your current environment. You can also specify the keyring you like to be used in the config file or by calling the set_keyring() function.
This section describes how to change your option in the config file.
The configuration of the lib is stored in a file named “keyringrc.cfg”. This file must be 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 this command:
python -c "import keyring.util.platform_; print(keyring.util.platform_.data_root())"
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 demo directory in the project checkout:
[backend] default-keyring=simplekeyring.SimpleKeyring keyring-path=/home/kang/pyworkspace/python-keyring-lib/demo/
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:
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().
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. See the setup.py file in that project for a hint 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.
If you’ve created an extension for Keyring, please submit a pull request to have your extension mentioned as an available extension.
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.
Here’s an example demonstrating how 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, password): 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"))
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'
It is possible to use the SecretService backend on Linux systems without X11 server available (only D-Bus is required). To do that, you need the following:
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 your password into stdin and press Ctrl+D (end of data). After that the daemon will fork into background (use --foreground option to prevent that).
Now you can use the SecretService backend of Keyring. Remember to run your application in the same D-Bus session as the daemon.
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.
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. On Python 2, these parameters are accepted as simple str in the default encoding as they will be implicitly decoded to text. Some backends may accept bytes for these parameters, but such usage is discouraged.
Python keyring lib is an open community project and highly welcomes new contributors.
Bug Tracker: https://github.com/jaraco/keyring/issues/
Mailing list: http://groups.google.com/group/python-keyring
This project makes use of automated releases via Travis-CI. The simple workflow is to tag a commit and push it to Github. If it passes tests on a late Python version, it will be automatically deployed to PyPI.
Other things to consider when making a release:
first ensure that tests pass (preferably on Windows and Linux)
check that the changelog is current for the intended release
Tests are continuously run using Travis-CI.
To run the tests yourself, you’ll want keyring installed to some environment in which it can be tested. Recommended technique is described below.
Keyring prefers use of tox to run tests. Simply install and invoke tox.
This technique is the one used by the Travis-CI script.
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