winrt-Windows.Storage.Streams
Python projection of Windows Runtime (WinRT) APIs
Decision gist · record as of 2026-08-14
Yes, if you are developing on Windows and need WinRT stream I/O bindings. The MIT license and active modular architecture make it a straightforward choice for Windows-targeted Python projects. However, this is a Windows-only package with medium install friction (platform-specific wheels), so it is only relevant for Windows development. The aging maintenance status suggests slower updates, but no known vulnerabilities and recent commits indicate the project remains functional.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Windows operating system required; wheels available only for Windows (32-bit, 64-bit, ARM64) on Python 3.9–3.14.
- Medium install friction due to platform-specific wheels (Windows only, multiple architectures).
- The package is part of a modular ecosystem with a single runtime dependency (winrt-runtime).
License · maintenance · safety
MIT (permissive) — MIT license permits commercial and private use with minimal restrictions, making it suitable for most projects.
last release 2025-06-06 (434 days) · last repo commit 2025-12-11 · 196 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 329,447 downloads/mo, #7,545 on PyPI
Alternatives
Verify before relying
pip install winrt-Windows.Storage.Streams
from winrt.windows.storage.streams import DataWriter, DataReader
# Use stream classes for I/O operations- Whether this package is typically installed as a direct dependency or primarily as a transitive dependency of higher-level WinRT namespace packages.
- Specific stream I/O scenarios or patterns this binding is most commonly used for in practice.
What it is and what it does
This package is a Python projection of the Windows Runtime Storage.Streams namespace, part of the modular PyWinRT ecosystem. It exposes WinRT stream classes and interfaces for reading and writing data to storage, allowing Python developers to work with Windows stream-based I/O directly. The package depends on winrt-runtime and is designed for Windows platforms only, with pre-built wheels for Python 3.9 through 3.14 across 32-bit, 64-bit, and ARM64 architectures.
It is typically used as a building block within larger WinRT applications—for instance, when working with file operations, network streams, or memory buffers through the Windows Runtime. The modular design means you install only the specific WinRT namespaces you need, rather than a monolithic package. The project is community-maintained as a fork of Microsoft's original xlang tool, with bindings generated and published separately per Windows SDK namespace.
Use it for
- Building Windows desktop or UWP applications in Python that need to read or write data to streams via WinRT APIs.
- Integrating Python code with Windows system features that expose stream-based I/O through the Windows Runtime.
- Developing Python tools that interact with Windows storage or networking APIs requiring stream manipulation.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are developing on Windows and need WinRT stream I/O bindings.
The MIT license and active modular architecture make it a straightforward choice for Windows-targeted Python projects. However, this is a Windows-only package with medium install friction (platform-specific wheels), so it is only relevant for Windows development. The aging maintenance status suggests slower updates, but no known vulnerabilities and recent commits indicate the project remains functional.
Install
winrt-windows-storage-streams on PyPI
Before you install
Medium install friction due to platform-specific wheels (Windows only, multiple architectures). The package is part of a modular ecosystem with a single runtime dependency (winrt-runtime). Maintenance status is aging—last commit was recent but the project shows slower activity patterns.
Windows operating system required; wheels available only for Windows (32-bit, 64-bit, ARM64) on Python 3.9–3.14.
License in practice
MIT license permits commercial and private use with minimal restrictions, making it suitable for most projects.
Quickstart
pip install winrt-Windows.Storage.Streams
from winrt.windows.storage.streams import DataWriter, DataReader
# Use stream classes for I/O operationsVerify before relying
- Whether this package is typically installed as a direct dependency or primarily as a transitive dependency of higher-level WinRT namespace packages.
- Specific stream I/O scenarios or patterns this binding is most commonly used for in practice.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 1 packagewinrt-runtime |
| Maintenance | Aging 434 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 329,447 / month, #7,545 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Intended Audience :: DevelopersOperating System :: Microsoft :: WindowsProgramming Language :: Python :: 3Programming Language :: Python :: Implementation :: CPython |
Evidence: winrt_windows_storage_streams-3.2.1-cp310-cp310-win32.whl; winrt_windows_storage_streams-3.2.1-cp310-cp310-win_amd64.whl; winrt_windows_storage_streams-3.2.1-cp310-cp310-win_arm64.whl; winrt_windows_storage_streams-3.2.1-cp311-cp311-win32.whl; winrt_windows_storage_streams-3.2.1-cp311-cp311-win_amd64.whl; winrt_windows_storage_streams-3.2.1-cp311-cp311-win_arm64.whl; winrt_windows_storage_streams-3.2.1-cp312-cp312-win32.whl; winrt_windows_storage_streams-3.2.1-cp312-cp312-win_amd64.whl; winrt_windows_storage_streams-3.2.1-cp312-cp312-win_arm64.whl; winrt_windows_storage_streams-3.2.1-cp313-cp313-win32.whl; winrt_windows_storage_streams-3.2.1-cp313-cp313-win_amd64.whl; winrt_windows_storage_streams-3.2.1-cp313-cp313-win_arm64.whl; winrt_windows_storage_streams-3.2.1-cp314-cp314-win32.whl; winrt_windows_storage_streams-3.2.1-cp314-cp314-win_amd64.whl; winrt_windows_storage_streams-3.2.1-cp314-cp314-win_arm64.whl; winrt_windows_storage_streams-3.2.1-cp39-cp39-win32.whl; winrt_windows_storage_streams-3.2.1-cp39-cp39-win_amd64.whl; winrt_windows_storage_streams-3.2.1-cp39-cp39-win_arm64.whl
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See also winrt-runtime · winrt-Windows.Foundation · winrt-Windows.Media.Ocr · winrt-Windows.Devices.Radios · winrt-Windows.Devices.Bluetooth · winrt-Windows.Graphics.Imaging · winrt-Windows.Devices.Bluetooth.Advertisement · winrt-Windows.Globalization · winrt-Windows.Foundation.Collections · winrt-Windows.Devices.Enumeration