Issues

Issues

• Interval.range() hangs forever on a zero (or wrong-sign) step

  python-pendulum/pendulum#1080 · opened on Nov 2, 2026

• parse() rejects ISO 8601 week dates with years < 1000 (strptime %Y needs zero-padding)

  python-pendulum/pendulum#1076 · opened on Oct 28, 2026

• from_format raises AttributeError for ordinal tokens (Do in locales without ordinals; Qo/Mo/DDDo/e/eo/do/Wo/wo everywhere)

  python-pendulum/pendulum#1074 · opened on Oct 28, 2026

• pendulum.now() raises LookupError on Windows' new Canada time zones

  python-pendulum/pendulum#1058 · opened on Oct 18, 2026

• Duration pickle and shallow copy lose year and month components

  python-pendulum/pendulum#1023 · opened on Oct 2, 2026

• py-pendulum 3.2.0 has a build error against the current tool chain

  python-pendulum/pendulum#1010 · opened on Sep 16, 2026
  5

• pendulum.now() returning None when executed via Slurm

  python-pendulum/pendulum#989 · opened on Jul 27, 2026

• from_format spanish cause error (copied from google examples)

  python-pendulum/pendulum#971 · opened on Jun 15, 2026

• Document ISO 8601 duration parsing in pendulum.parse()

  python-pendulum/pendulum#961 · opened on Apr 12, 2026

• from_timestamp fails with timestamps earlier than 12h before unix epoch

  python-pendulum/pendulum#956 · opened on Apr 3, 2026
  1

• parse fails with subsecond decimals with more than 9 digits

  python-pendulum/pendulum#935 · opened on Jan 29, 2026

• parse_dt method that specifically returns a DateTime

  python-pendulum/pendulum#917 · opened on Sep 12, 2025
  1

• Incrementing by day fails for timezones like Chile/Continental where spring forward occurs at midnight. Works for Europe.

  python-pendulum/pendulum#915 · opened on Aug 27, 2025
  1

• pickling doesn't preserve DST offset

  python-pendulum/pendulum#908 · opened on Aug 11, 2025
  1

• Add tests comparing pure-Python and Rust functions

  python-pendulum/pendulum#907 · opened on Aug 2, 2025

• Pendulum interval seems incompatible with Python native datetime

  python-pendulum/pendulum#906 · opened on Aug 1, 2025 · Pendulum 3.4
  2

• now ignores TZ environment variable

  python-pendulum/pendulum#905 · opened on Jul 26, 2025 · Pendulum 3.4
  2

• Allow pure-Python, rust-free build

  python-pendulum/pendulum#904 · opened on Jul 25, 2025
  11

• precise_diff is wrong when using Rust library

  python-pendulum/pendulum#901 · opened on Jun 2, 2025 · Pendulum 3.4

• parse of date with duration cause error

  python-pendulum/pendulum#881 · opened on Mar 17, 2025
  2

• naive DateTime.diff fails when the input is a naive datetime object, as pendulum.instance converts it to a pendulum.DateTime with UTC tz

  python-pendulum/pendulum#880 · opened on Mar 12, 2025

• Pendulum.timezones in release notes do not reflect the code and not otherwise documented

  python-pendulum/pendulum#877 · opened on Jan 22, 2025
  1

• Durations of full days have 0 total_seconds (PyPy)

  python-pendulum/pendulum#876 · opened on Jan 22, 2025

• [META] Move from master branch to main

  python-pendulum/pendulum#873 · opened on Jan 15, 2025
  1

• Feature Request: Calendar Conversion

  python-pendulum/pendulum#856 · opened on Nov 1, 2024
  1