http-sfv
Parse and serialise HTTP Structured Field Values
Decision gist · record as of 2026-08-14
No. The package is abandoned and explicitly deprecated in favor of http-sf. Unless you are maintaining legacy code already using http-sfv, migrate to http-sf instead. No new projects should adopt this package.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.8 or later.
- Input to .parse() must be bytes-like; strings must be .encode()d first.
- Low friction to install; single pure-Python dependency (typing-extensions).
License · maintenance · safety
permissive license (permissive) — Licensed under MIT (permissive), so no restrictions on use, modification, or distribution in commercial or private projects.
last release 2024-01-25 (932 days) · last repo commit 2026-05-18 · 14 stars · archived
0 known vulnerabilities (OSV.dev, 2026-08-14) · 110,066 downloads/mo, #12,485 on PyPI
Alternatives
Verify before relying
from http_sfv import List, Token
my_list = List()
my_list.parse(b"foo; a=1, bar; b=2")
print(my_list[0].value) # 'foo'
print(my_list[0].params['a']) # 1- Whether http-sf is a true drop-in replacement or requires code changes for migration.
- Current security posture and timeline for potential yanking of this package.
What it is and what it does
http-sfv is a Python library for parsing and serializing HTTP Structured Field Values as defined by the IETF specification. It provides three top-level types—Dictionary, List, and Item—each capable of parsing byte-string header values and exposing their structure through Pythonic interfaces (list/dict methods, .value and .params properties). The library supports multiple value types including tokens, strings, display strings, dates, and inner lists, with parameters accessible as dictionaries on items.
The package is explicitly deprecated. The maintainer recommends using http-sf instead and has archived the repository. While security updates are promised, no active development occurs. The library was designed to validate the specification algorithms rather than optimize for production use, making it suitable mainly for specification compliance testing or legacy systems already depending on it.
Use it for
- Validate HTTP header field values against the IETF Structured Fields specification in test suites or compliance checkers.
- Parse and inspect structured HTTP headers (e.g., Accept, Content-Type variants) that follow the specification format.
- Serialize programmatically-built HTTP header structures back into compliant byte-string format for transmission.
- Command-line inspection of header values using the -d, -l, -i flags to examine their data model in JSON format.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
The package is abandoned and explicitly deprecated in favor of http-sf. Unless you are maintaining legacy code already using http-sfv, migrate to http-sf instead. No new projects should adopt this package.
Install
http-sfv on PyPI
Before you install
Low friction to install; single pure-Python dependency (typing-extensions). However, the package is abandoned—the repository is archived, last commit was 2026-05-18, and the maintainer explicitly directs users to http-sf as a replacement. Security-only updates promised but no active development.
Requires Python 3.8 or later. Input to .parse() must be bytes-like; strings must be .encode()d first.
License in practice
Licensed under MIT (permissive), so no restrictions on use, modification, or distribution in commercial or private projects.
Quickstart
from http_sfv import List, Token
my_list = List()
my_list.parse(b"foo; a=1, bar; b=2")
print(my_list[0].value) # 'foo'
print(my_list[0].params['a']) # 1Verify before relying
- Whether http-sf is a true drop-in replacement or requires code changes for migration.
- Current security posture and timeline for potential yanking of this package.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagetyping-extensions |
| Maintenance | Abandoned 932 days since the last release |
| Last repo commit | repository archived |
| First released | |
| Downloads | 110,066 / month, #12,485 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 7 - InactiveIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: POSIXProgramming Language :: PythonProgramming Language :: Python :: 3.8Topic :: Internet :: WWW/HTTPTopic :: Software Development :: Libraries :: Python Modules |
Evidence: http_sfv-0.9.9-py3-none-any.whl
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