rfc3339-validator
A pure python RFC3339 validator
Decision gist · record as of 2026-08-14
Yes, for simple validation tasks where you need a minimal, dependency-light RFC3339 checker and can tolerate the lack of active maintenance. The package is stable enough for straightforward use cases, but if you need ongoing support, bug fixes, or assurance of RFC3339 compliance with evolving standards, consider a more actively maintained alternative or implement validation inline.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Installation is frictionless (pure Python wheel, single dependency on six), but the package is abandoned—last release was in 2021 and last commit in December 2022.
- No active maintenance for nearly two years.
License · maintenance · safety
MIT license (permissive) — MIT license is permissive; you can use, modify, and distribute this package with minimal restrictions, provided you include the license notice.
last release 2021-05-12 (1920 days) · last repo commit 2022-12-26 · 8 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 81,842,496 downloads/mo, #412 on PyPI
Alternatives
Verify before relying
pip install rfc3339-validator
from rfc3339_validator import validate_rfc3339
result = validate_rfc3339('2001-10-23T15:32:12.9023368Z')
print(result) # True- Whether the validator correctly handles all RFC3339 edge cases (leap seconds, timezone offsets, fractional seconds) beyond the examples shown.
- Performance characteristics when validating large batches of timestamps.
- Whether the package works reliably with Python versions newer than 3.8, given the Pre-Alpha status and lack of recent updates.
What it is and what it does
rfc3339-validator is a lightweight pure-Python library that checks whether a given string is a valid RFC3339 timestamp. It exports a single function, validate_rfc3339, which returns a boolean—True if the input matches the RFC3339 format, False otherwise. The package depends only on six for Python 2/3 compatibility.
The library is straightforward and has no external system dependencies, making it easy to integrate into any Python project that needs to validate RFC3339 timestamps. However, the project is in Pre-Alpha status and has been abandoned since 2021, with no maintenance activity for nearly two years. While the code is simple enough that abandonment may not pose immediate risk, there is no guarantee that edge cases or RFC3339 compliance issues will be addressed.
Use it for
- Validate timestamp strings in API request payloads before processing them downstream.
- Check log entries or event records to ensure they conform to RFC3339 format during data ingestion.
- Verify configuration file timestamps are well-formed before parsing them in application startup.
- Filter or reject malformed datetime strings in data migration or ETL pipelines.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, for simple validation tasks where you need a minimal, dependency-light RFC3339 checker and can tolerate the lack of active maintenance.
The package is stable enough for straightforward use cases, but if you need ongoing support, bug fixes, or assurance of RFC3339 compliance with evolving standards, consider a more actively maintained alternative or implement validation inline.
Install
rfc3339-validator on PyPI
Before you install
Installation is frictionless (pure Python wheel, single dependency on six), but the package is abandoned—last release was in 2021 and last commit in December 2022. No active maintenance for nearly two years.
License in practice
MIT license is permissive; you can use, modify, and distribute this package with minimal restrictions, provided you include the license notice.
Quickstart
pip install rfc3339-validator
from rfc3339_validator import validate_rfc3339
result = validate_rfc3339('2001-10-23T15:32:12.9023368Z')
print(result) # TrueVerify before relying
- Whether the validator correctly handles all RFC3339 edge cases (leap seconds, timezone offsets, fractional seconds) beyond the examples shown.
- Performance characteristics when validating large batches of timestamps.
- Whether the package works reliably with Python versions newer than 3.8, given the Pre-Alpha status and lack of recent updates.
Package facts
| License | MIT license permissive |
| Python support | Supports the current Python release >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.* |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagesix |
| Maintenance | Abandoned 1,920 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 81,842,496 / month, #412 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 2 - Pre-AlphaIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseNatural Language :: EnglishProgramming Language :: Python :: 2Programming Language :: Python :: 2.7Programming Language :: Python :: 3Programming Language :: Python :: 3.5Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8 |
Evidence: rfc3339_validator-0.1.4-py2.py3-none-any.whl
Tags
Let your AI agent find packages like this
Example. Real query, live index.
You found this page by searching. An agent finds it by wishing: SkillFed indexes 14,416 PyPI packages by what they can do, searchable in plain language.
wish › “rfc3339 timestamp validation”
- rfc3339-validatorValidates whether a string conforms to the RFC3339 timestamp format,…
- strict-rfc3339Converts Unix timestamps to and from RFC3339 strings, with support…
- rfc3339Formats and parses dates according to RFC 3339, the Internet…
Give your agent the search over MCP, or paste the wish link into any chat.
More Utilities packages
Converts domain names between Unicode and ASCII-compatible encoding (Punycode) according to IDNA 2008 and Unicode Technical Standard 46, with security validation and broader script coverage than the standard library.
Install it if you work with internationalized domain names, need to validate domains, or use HTTP clients that depend on it transitively.
Detects and normalizes text encoding from unknown or ambiguous sources, supporting all IANA character sets that Python's core library provides codecs for, with the ability to register custom codecs.
Setuptools is a Python build backend and package management tool that handles building, distributing, and installing Python packages, including support for C/C++ extension modules.
Pluggy provides a plugin system that lets you define hook specifications and register implementations to be called in sequence, enabling extensible Python applications without tight coupling.
Install it if you're building an extensible application or framework.
Pygments is a syntax highlighter that colorizes source code and text in over 500 languages and formats, outputting to HTML, LaTeX, RTF, SVG, images, or ANSI terminal sequences.
Install it if you need to display or transform source code.
Six provides utility functions to write Python code that runs on both Python 2.7 and Python 3.3+, smoothing over language differences between the two versions.
See also rfc3986-validator · strict-rfc3339 · rfc3339 · udatetime · iregexp-check · cron-validator · rfc3987-syntax · pyRFC3339 · swagger-spec-validator · avro-validator