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Jeff Epler d8480e67d5 Add timeout & improve coverage 
Looks like the NIST FTP server is not happy with urllib and it fails
(ugh!) by hanging for a long time. Maybe I'll have to delete it.
(it works with curl, which uses EPSV and not PASV. python uses PASV
for all ipv4 ftp and EPSV for ipv6, instead of trying EPSV first)

Set a reasonable timeout.

The format of `leapsecond sources` has been modified for better readability.
2025-04-25 08:27:31 +02:00
.github/workflows remove tracemalloc setting, it didn't turn up anything 2024-07-18 07:15:29 -05:00
docs Show version string 2024-07-20 11:14:26 -05:00
leapseconddata Add timeout & improve coverage 2025-04-25 08:27:31 +02:00
LICENSES package-ize 2021-10-18 10:22:33 -05:00
.coveragerc Improve coverage & create InvalidContentError 2024-07-18 07:43:21 -05:00
.gitignore Add more complete documentation 2024-07-19 10:42:17 +02:00
.pre-commit-config.yaml update pre-commit 2024-05-19 18:25:52 -04:00
.pylintrc remove option that disappeared from pylint (thanks guys) 2022-11-05 17:34:58 -05:00
.readthedocs.yaml get readthedocs working again 2024-07-16 15:37:30 -05:00
codecov.yml package-ize 2021-10-18 10:22:33 -05:00
Makefile check types in leapseconddata.py 2024-07-07 14:41:41 -05:00
pyproject.toml Add more complete documentation 2024-07-19 10:42:17 +02:00
README.md punctuate 2024-07-07 17:00:25 -05:00
requirements-dev.txt Show version string 2024-07-20 11:14:26 -05:00
testleapseconddata.py Add timeout & improve coverage 2025-04-25 08:27:31 +02:00

README.md

Test leapseconddata PyPI Documentation Status

Python Leap Second List

Leap seconds are corrections applied irregularly so that the UTC day stays fixed to the earth's rotation.

This module provides a class for parsing and validating the standard leap-seconds.list file. Once parsed, it is possible to retrieve the full list of leap seconds, or find the TAI-UTC offset for any UTC time.

leapsecond program

Access leap second data from the command line.

Usage: leapsecond [OPTIONS] COMMAND [ARGS]...

  Access leap second database information

Options:
  --url TEXT            URL for leap second data (unspecified to use default
                        source)
  --debug / --no-debug
  --help                Show this message and exit.

Commands:
  convert              Convert timestamps between TAI and UTC
  info                 Show information about leap second database
  next-leapsecond      Get the next leap second after a given UTC timestamp
  offset               Get the UTC offset for a given moment, in seconds
  previous-leapsecond  Get the last leap second before a given UTC timestamp
  table                Print information about leap seconds