ietfparse

Wait… Why? What??

This is a gut reaction to the wealth of ways to parse URLs, MIME headers, HTTP messages and other things described by IETF RFCs. They range from the Python standard library (urllib) to be buried in the guts of other kitchen sink libraries (werkzeug) and most of them are broken in one way or the other.

So why create another one? Good question… glad that you asked. This is a companion library to the great packages out there that are responsible for communicating with other systems. I’m going to concentrate on providing a crisp and usable set of APIs that concentrate on parsing text. Nothing more. Hopefully by concentrating on the specific task of parsing things, the result will be a beautiful and usable interface to the text strings that power the Internet world.

Here’s a sample of the code that this library lets you write:

from ietfparse import algorithms, headers

def negotiate_versioned_representation(request, handler, data_dict):
    requested = headers.parse_accept(request.headers['Accept'])
    selected = algorithms.select_content_type(requested, [
        headers.parse_content_type('application/example+json; v=1'),
        headers.parse_content_type('application/example+json; v=2'),
        headers.parse_content_type('application/json'),
    ])

    output_version = selected.parameters.get('v', '2')
    if output_version == '1':
        handler.set_header('Content-Type', 'application/example+json; v=1')
        handler.write(generate_legacy_json(data_dict))
    else:
        handler.set_header('Content-Type', 'application/example+json; v=2')
        handler.write(generate_modern_json(data_dict))

def redirect_to_peer(host, port=80):
    flask.redirect(algorithms.rewrite_url(flask.request.url,
                                          host=host, port=port))

OK… Where?

Source	https://github.com/dave-shawley/ietfparse
Status	https://circleci.com/gh/dave-shawley/ietfparse/tree/master
Download	https://pypi.org/project/ietfparse
Documentation	https://ietfparse.readthedocs.io/en/latest
Issues	https://github.com/dave-shawley/ietfparse

Metadata

Release files for ietfparse 1.9.0

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Source distribution (sdist)

Source distribution for ietfparse 1.9.0
File	Size	Uploaded
ietfparse-1.9.0.tar.gz	38.3 kB	Jul 8, 2022	Details

Built distribution (wheel)

Table of built distributions (wheels) for ietfparse 1.9.0
File	Interpreter	ABI	Platform	Reset
ietfparse-1.9.0-py3-none-any.whl 19.2 kB Jul 8, 2022	Python 3	none	any	Details

Total release size: 57.5 kB

Release files / ietfparse-1.9.0.tar.gz

Download URL	ietfparse-1.9.0.tar.gz
Size	38.3 kB
Tags	Source
SHA-256 checksum How to use checksums	`2a5e7006f742e42a3651cd24d16f050acdf7ae4d0ae0cd576f3f4abc150dc5b3`
BLAKE2b-256 checksum How to use checksums	`1fd95347ee8ff3765800d4aaab7d6a9816ac4ed6fee4fbafcf6cb8ffc58c3094`
Upload date	Jul 8, 2022
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/4.0.1 CPython/3.10.5`

Release files / ietfparse-1.9.0-py3-none-any.whl

Download URL	ietfparse-1.9.0-py3-none-any.whl
Size	19.2 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`72216d31d94764156c4380c419af41295b53a1b309dd8091e5610a411c8b5446`
BLAKE2b-256 checksum How to use checksums	`11ac5c6e72985228dee72e25a28b12ad97746832c9cca846d2969b0452018fdb`
Upload date	Jul 8, 2022
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/4.0.1 CPython/3.10.5`