msrest
AutoRest swagger generator Python client runtime.
Decision gist · record as of 2026-08-14
No, unless you are maintaining existing code that already depends on it. The package is abandoned and no longer receives updates. For new projects, use azure-core directly or modern alternatives. If you must use it for legacy AutoRest-generated clients, pin the version and understand you will not receive security patches.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.6 or later; package is no longer maintained and will not receive updates or security patches.
- Low friction install with standard dependencies.
- However, the package is abandoned as of June 2022 (1523 days since last release) and its repository is archived, meaning no active maintenance or security updates.
License · maintenance · safety
MIT License (permissive) — MIT License (permissive) allows use in most projects without significant restriction, though you assume responsibility for any future issues given the package's abandoned status.
last release 2022-06-13 (1523 days) · last repo commit 2026-02-28 · 42 stars · archived
0 known vulnerabilities (OSV.dev, 2026-08-14) · 82,458,775 downloads/mo, #405 on PyPI
Alternatives
Verify before relying
pip install msrest
from msrest.serialization import Deserializer, Serializer
from msrest.authentication import BasicAuthentication
deserializer = Deserializer()
serializer = Serializer()- Whether existing AutoRest-generated clients still function reliably with this abandoned runtime version
- Current state of compatibility with modern versions of runtime dependencies (azure-core, requests, requests-oauthlib)
- Whether security issues in transitive dependencies are being addressed elsewhere
What it is and what it does
msrest is the Python client runtime library for AutoRest-generated REST API clients. It provides the core HTTP handling, serialization, and authentication infrastructure that AutoRest-generated SDKs depend on to communicate with REST services. The package handles request/response processing, XML and JSON serialization/deserialization, various authentication schemes (Basic, OAuth, Kerberos), and long-running operation polling.
The package depends on azure-core, requests, requests-oauthlib, certifi, and isodate to manage HTTP transport, OAuth flows, and date/time handling. It supports Python 3.6 through 3.10 and includes type hints for mypy compatibility. However, the package has been abandoned since June 2022 with no active maintenance, meaning no new features, bug fixes, or security updates will be released.
Use it for
- Using AutoRest-generated Azure SDK clients that require the msrest runtime as a dependency
- Building REST API clients from Swagger/OpenAPI definitions using AutoRest with Python code generation
- Serializing and deserializing complex REST API payloads in XML or JSON format
- Implementing custom REST clients that need OAuth or Kerberos authentication with HTTP session management
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No, unless you are maintaining existing code that already depends on it.
The package is abandoned and no longer receives updates. For new projects, use azure-core directly or modern alternatives. If you must use it for legacy AutoRest-generated clients, pin the version and understand you will not receive security patches.
Install
msrest on PyPI
Before you install
Low friction install with standard dependencies. However, the package is abandoned as of June 2022 (1523 days since last release) and its repository is archived, meaning no active maintenance or security updates.
Requires Python 3.6 or later; package is no longer maintained and will not receive updates or security patches.
License in practice
MIT License (permissive) allows use in most projects without significant restriction, though you assume responsibility for any future issues given the package's abandoned status.
Quickstart
pip install msrest
from msrest.serialization import Deserializer, Serializer
from msrest.authentication import BasicAuthentication
deserializer = Deserializer()
serializer = Serializer()Verify before relying
- Whether existing AutoRest-generated clients still function reliably with this abandoned runtime version
- Current state of compatibility with modern versions of runtime dependencies (azure-core, requests, requests-oauthlib)
- Whether security issues in transitive dependencies are being addressed elsewhere
Package facts
| License | MIT License permissive |
| Python support | Supports the current Python release >=3.6 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 5 packagesazure-corecertifiisodaterequests-oauthlibrequests |
| Maintenance | Abandoned 1,523 days since the last release |
| Last repo commit | repository archived |
| First released | |
| Downloads | 82,458,775 / month, #405 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaLicense :: OSI Approved :: MIT LicenseProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Topic :: Software Development |
Evidence: msrest-0.7.1-py3-none-any.whl
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See also msrestazure · microsoft-kiota-serialization-json · azure-mgmt-web · azure-mgmt-automation · azure-common · azure-schemaregistry-avroserializer · azure-mgmt-network · azure-core · azure-synapse-managedprivateendpoints · azure-mgmt-hanaonazure