construct-typing
Extension for the python package 'construct' that adds typing features
Decision gist · record as of 2026-08-14
Yes, if you use construct and want type safety. The stubs alone provide immediate value for existing code via PEP 561 auto-discovery. The additional typed classes are marked experimental but functional. Low install friction, active maintenance, no known vulnerabilities, and MIT licensing make it a safe addition. Skip it only if you have no type-checking infrastructure or prefer construct's flexibility over strict typing.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later; construct must be installed as a runtime dependency.
- Low install friction with a pure-Python wheel.
- Actively maintained with a recent release 22 days ago.
License · maintenance · safety
MIT (permissive) — MIT license permits unrestricted use, modification, and distribution in commercial and private projects with minimal attribution requirements.
last release 2026-07-23 (22 days) · last repo commit 2026-07-23 · 37 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 1,402,117 downloads/mo, #3,947 on PyPI
Alternatives
Verify before relying
pip install construct-typing
import dataclasses
from construct import Int8ub, Bytes
from construct_typing import DataclassMixin, DataclassStruct, csfield
@dataclasses.dataclass
class Image(DataclassMixin):
width: int = csfield(Int8ub)
height: int = csfield(Int8ub)
format = DataclassStruct(Image)
obj = Image(width=3, height=2)
print(format.build(obj))- Stability and production-readiness of the typed constructs module beyond its experimental status.
- Performance overhead of typed wrappers compared to raw construct for large-scale parsing.
- Compatibility guarantees with future versions of construct beyond 2.10.
What it is and what it does
construct-typing extends the construct binary parser library with type hints and static type checking. It provides two components: stub files (.pyi) that add PEP 561 type information to construct's parse and build methods, and additional typed wrapper classes that map binary structures to dataclasses with strict type enforcement and IDE autocompletion.
The package is designed for developers who want compile-time type safety when working with binary data. Instead of accepting Any types for complex nested structures, you define strongly-typed dataclasses that map directly to binary formats. This enables static type checkers like mypy and pyright to catch type errors before runtime and provides IDE autocompletion for field access. The trade-off is slightly more verbose code—you must use the correct typed container rather than generic dicts—but the benefit is early error detection and better developer experience.
Use it for
- Add type hints to an existing construct-based binary parser to enable static type checking.
- Define a strongly-typed binary file format with IDE autocompletion for structured binary data.
- Build a declarative parser with full type safety and dataclass integration.
- Enforce correct types at build time using typed enum wrappers instead of raw constants.
- Generate type stubs for a custom construct library to enable type checking across a team.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you use construct and want type safety.
The stubs alone provide immediate value for existing code via PEP 561 auto-discovery. The additional typed classes are marked experimental but functional. Low install friction, active maintenance, no known vulnerabilities, and MIT licensing make it a safe addition. Skip it only if you have no type-checking infrastructure or prefer construct's flexibility over strict typing.
Install
construct-typing on PyPI
Before you install
Low install friction with a pure-Python wheel. Actively maintained with a recent release 22 days ago. Depends on construct, arrow, and typing_extensions—all stable, widely-used packages.
Requires Python 3.10 or later; construct must be installed as a runtime dependency.
License in practice
MIT license permits unrestricted use, modification, and distribution in commercial and private projects with minimal attribution requirements.
Quickstart
pip install construct-typing
import dataclasses
from construct import Int8ub, Bytes
from construct_typing import DataclassMixin, DataclassStruct, csfield
@dataclasses.dataclass
class Image(DataclassMixin):
width: int = csfield(Int8ub)
height: int = csfield(Int8ub)
format = DataclassStruct(Image)
obj = Image(width=3, height=2)
print(format.build(obj))Verify before relying
- Stability and production-readiness of the typed constructs module beyond its experimental status.
- Performance overhead of typed wrappers compared to raw construct for large-scale parsing.
- Compatibility guarantees with future versions of construct beyond 2.10.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 3 packagesarrowconstructtyping_extensions |
| Maintenance | Actively maintained 22 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 1,402,117 / month, #3,947 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 3 - AlphaIntended Audience :: DevelopersProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: Implementation :: CPythonTopic :: Software Development :: Build ToolsTopic :: Software Development :: Code GeneratorsTopic :: Software Development :: Libraries :: Python ModulesTyping :: Typed |
Evidence: construct_typing-0.8.1-py3-none-any.whl
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