uttlv

library0.7.1pypypi✓ verified 82d ago

A Python library for encoding and decoding TLV (Tag-Length-Value) objects. Supports custom tag definitions, nested TLV structures, and iterator access. Current version 0.7.1, maintained on GitHub.

serialization

pip install uttlv

github ↗package ↗

INSTALL

IMPORT

SIG · UTTLV

uttlv

serializationpythonv0.7.1

Install

1.6s avg

Import

—

Disk

16MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.7.1 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 17.8MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.6s · import 0.000s · 18MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

TLV

✓ from uttlv import TLV

✗ from uttlv import Tlv

encoder

✓ from uttlv import encoder

tlv

✓ from uttlv import tlv

Create a TLV object, set a tag, encode to bytes, decode back.

from uttlv import Tlv tlv = Tlv() tlv[0x01] = b'data' encoded = tlv.to_bytes() print('Encoded:', encoded.hex()) decoded = Tlv() decoded.from_bytes(encoded) assert decoded[0x01] == b'data'

Debug

Known issues

breakingIn v0.7.0, the 'nested_tag_config_map' parameter was added to Tlv constructor, changing the signature. Code using positional arguments for 'tag_len_sizes' may break.

fix

Update constructor calls to use keyword arguments: Tlv(tag_len_sizes=...) if needed.

affects: <0.7.0

gotchaTag values must be integers; assigning non-integer keys will raise TypeError.

fix

Always use integer tag values, e.g., tlv[0x01] = b'...'.

affects: all

gotchaWhen decoding, from_bytes() expects bytes, not hex string. Common mistake is passing a hex string directly.

fix

Convert hex string to bytes first: tlv.from_bytes(bytes.fromhex('010203'))

affects: all

Upgrade

Version history

0.7.1latest on PyPI · released Mar 12, 2024

Audit

Dependencies

No dependency data recorded yet.

Agent activity

19 hits · last 30 days

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OpenAI (training)

Resources

githubhttps://github.com/ustropo/uttlv ↗

packagehttps://pypi.org/project/uttlv/ ↗