Skip to main content

Utility classes for working with the LSST EFD.

Project description


Utility classes for working with the LSST EFD.

  • Free software: MIT license


  • The client EfdClient, has several useful functions.

    • get_topics: Return the topics in the EFD.

    • get_fields: Return the fields in a particular topic

    • build_time_range_query: Build an InfluxQL query for a topic and time range

    • select_time_series: Return a DataFrame containing results of a time range query

    • select_packed_time_series: Return a DataFrame with high cadence telemetry expanded into a single DataFrame.

    • select_top_n: Return a DataFrame with the results of just the most recent rows.

    • get_schema: Get metadata for the fields in a particular topic.

  • There are also some utilities for dealing with results of queries

    • merge_packed_time_series: Takes a dataframe with records that have multiple samples per entry and returns a dataframe with one record per sample.

    • rendezvous_dataframes: Extend on dataframe with data from another dataframe using the closest record in time in the past, in the future, or nearest overall.

See example notebooks here.

For more information, see the online docs.


For information on contributing to this project see this page.


This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template.


0.1.0 (2019-12-23)

  • First release on PyPI.

0.2.0 (2019-01-15)

  • Minimal functionality in place.

  • Docstrings complete.

0.3.0 (2019-01-31)

  • Unit tests added.

0.4.0 (2019-01-31)

  • Very minor doc updates.

  • Accidently pushed minor version when patch was meant.

0.5.0 (2020-05-29)

  • Switch to the segwarides based credentials.

0.6.0 (2021-02-11)

  • Fix bug in listing possible endpoints

  • Add some utility functionality and speed up unpacking packed time series (thank you RHL)

0.6.4 (2021-02-15)

  • Fix a regression that causes an exception when the name of one column is the same as the start of the name of another column

  • Add a test for the regression

0.7.0 (2021-03-24)

  • Add the get_schema method to fetch metadata about topic fields

  • Add a test for the schema parser

0.8.2 (2021-05-25)

  • Deal gracefully with topics that have no description or units (Thanks Angelo!)

  • Add add a parameter to allow a time threshold when selecting top N (Thanks Michael!)

0.8.3 (2021-06-11)

  • Add column specifying if a field in the schema is array-like.

  • Check for both conventions indicating unitless columns when creating astropy units.

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

lsst-efd-client-0.8.3.tar.gz (2.7 MB view hashes)

Uploaded Source

Built Distribution

lsst_efd_client-0.8.3-py2.py3-none-any.whl (11.6 kB view hashes)

Uploaded Python 2 Python 3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page