This is no longer maintained and has been superseded by datajoint-company/datajoint-docs. Please file new issues there (or help contribute!). We are currently migrating and generating new content until December 2022 after which we’ll be decomissioning and in favor of

Install and Connect

DataJoint is implemented for Python 3.4+. You may install it from PyPI:

pip3 install datajoint

or upgrade

pip3 install --upgrade datajoint

Next configure the connection through DataJoint’s config object:

In [1]: import datajoint as dj
DataJoint 0.4.9 (February 1, 2017)
No configuration found. Use `dj.config` to configure and save the configuration.

You may now set the database credentials:

In [2]: dj.config[''] = ""
In [3]: dj.config['database.user'] = "alice"
In [4]: dj.config['database.password'] = "haha not my real password"

Skip setting the password to make DataJoint prompt to enter the password every time.

You may save the configuration in the local work directory with dj.config.save_local() or for all your projects in dj.config.save_global(). Configuration changes should be made through the dj.config interface; the config file should not be modified directly by the user.

You may leave the user or the password as None, in which case you will be prompted to enter them manually for every session. Setting the password as an empty string allows access without a password.

Note that the system environment variables DJ_HOST, DJ_USER, and DJ_PASS will overwrite the settings in the config file. You can use them to set the connection credentials instead of config files.

To change the password, the dj.set_password function will walk you through the process:

>>> dj.set_password()

After that, update the password in the configuration and save it as described above:

dj.config['database.password'] = 'my#cool!new*psswrd'
dj.config.save_local()   # or dj.config.save_global()

Other Configuration Settings

If you are not using DataJoint on your own, or are setting up a DataJoint system for other users, some additional configuraiton options may be required to support TLS or external storage .

TLS Configuration

Starting with v0.12 (Python) and v3.3.1 (MATLAB), DataJoint will by default use TLS if it is available. TLS can be forced on or off with the boolean use_tls in MATLAB, or dj.config['database.use_tls'] in Python.

Talk to the Community