# Pendulum Python library

5 Hacker News commenters recommended Pendulum Python library and 1 criticized it, November 2025 to November 2026. It was recommended in 4 of 13 months.

**Verdict:** Python date and time library people admire; the most common caveat is that it is a separate object, which some find cumbersome.

## Why people recommend it

- Long-awaited 1.0 release (1 comments): "I've been looking forward to whenever 1.0 for a few years now." ([source](https://news.ycombinator.com/item?id=50000872))
- Admiration for the library grows (1 comments): "My admiration for Pendulum just increased." ([source](https://news.ycombinator.com/item?id=49998485))

## What people warn about

- Separate object feels cumbersome (1 comments): "pendulum is close but just like the article, it's cumbersome as it's still a separate obj" ([source](https://news.ycombinator.com/item?id=46596297))
- Operator leaks unintended behavior (1 comments): "it's a mathematical operator, and it leaks out unintended behavior" ([source](https://news.ycombinator.com/item?id=50006458))
- Design can't be patched cleanly (1 comments): "I sent a patch that removes the hack, but the post is about why the underlying design can't be patched the same way." ([source](https://news.ycombinator.com/item?id=49976447))

## Alternatives hackers recommend

- [Polars](https://hackerapproved.com/p/polars.md): 152 recommend
- [pandas](https://hackerapproved.com/p/pandas.md): 93 recommend
- [NumPy](https://hackerapproved.com/p/numpy.md): 86 recommend
- [SciPy](https://hackerapproved.com/p/scipy.md): 12 recommend
- [sh Python library](https://hackerapproved.com/p/sh.md): 10 recommend

## Cite as

Hacker Approved, "Pendulum Python library", https://hackerapproved.com/p/pendulum/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).