chessdata-pyclient

Python library for interacting with the CHESS metadata service

Installation

1. In an environment of your choosing, run pip install chessdata-pyclient
2. Set the environment variable REQUESTS_CA_BUNDLE to a path to a CA bundle to use (for SSL).
3. (optional, but recommended) Run kinit -c ~/krb5_ccache <user>

Examples

• Search the CHESS metadata database for records on tomography scans taken at ID3A:

  from chessdata import query
  records = query('{"beamline":"3a" "technique":"tomography"}')