durationpy
Module for converting between datetime.timedelta and Go's Duration strings.
Decision gist · record as of 2026-08-14
Yes, if you need Go-to-Python duration conversion. The package is simple, dependency-free, and permissively licensed. However, note that maintenance is aging (last update 2025-05-17, last commit 2026-02-03); verify compatibility with your Python version before relying on it for production use.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Nanosecond precision is lost because datetime.timedelta uses microsecond resolution.
- Low friction: pure Python wheel with no runtime dependencies.
- Maintenance is aging—last commit was 2026-02-03 and the package has not been updated since 2025-05-17, though the repository remains active and unarchived.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute this package with minimal restrictions, provided you retain the license notice.
last release 2025-05-17 (454 days) · last repo commit 2026-02-03 · 41 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 78,620,724 downloads/mo, #434 on PyPI
Alternatives
Verify before relying
pip install durationpy
import durationpy
td = durationpy.from_str("4h3m2s1ms")
result = durationpy.to_str(td)- Whether the package actively maintains compatibility with current Python versions, given the aging maintenance status.
What it is and what it does
durationpy is a lightweight utility for bidirectional conversion between Python's `datetime.timedelta` objects and Go's duration string format. It parses Go-style duration strings (using units like ns, us, ms, s, m, h, d, w, mm, y) into timedelta objects and formats timedelta objects back into Go duration strings. This is useful when integrating Python code with Go systems or APIs that communicate durations in Go's native format.
The package has no runtime dependencies and installs as a pure Python wheel. It is straightforward to use: call `from_str()` to parse a duration string and `to_str()` to format a timedelta. One important limitation is that nanosecond precision is lost during conversion because Python's timedelta operates at microsecond resolution.
Use it for
- Parse Go duration strings from configuration files or API responses into Python timedelta objects for scheduling or timing logic.
- Format Python timedelta objects into Go duration strings when communicating with Go microservices or APIs.
- Convert between Go and Python duration representations in polyglot systems that mix both languages.
- Handle duration data in interoperability layers or middleware that bridges Go and Python components.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need Go-to-Python duration conversion.
The package is simple, dependency-free, and permissively licensed. However, note that maintenance is aging (last update 2025-05-17, last commit 2026-02-03); verify compatibility with your Python version before relying on it for production use.
Install
durationpy on PyPI
Before you install
Low friction: pure Python wheel with no runtime dependencies. Maintenance is aging—last commit was 2026-02-03 and the package has not been updated since 2025-05-17, though the repository remains active and unarchived.
Nanosecond precision is lost because datetime.timedelta uses microsecond resolution.
License in practice
MIT license is permissive; you can use, modify, and distribute this package with minimal restrictions, provided you retain the license notice.
Quickstart
pip install durationpy
import durationpy
td = durationpy.from_str("4h3m2s1ms")
result = durationpy.to_str(td)Verify before relying
- Whether the package actively maintains compatibility with current Python versions, given the aging maintenance status.
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Aging 454 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 78,620,724 / month, #434 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
Evidence: durationpy-0.10-py3-none-any.whl
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