sqlalchemy-pytds
A Microsoft SQL Server TDS connector for SQLAlchemy.
Decision gist · record as of 2026-08-14
Yes, with conditions. The package is permissively licensed and has low install friction, but its dormant maintenance status and outdated Python version classifiers mean you should verify that python-tds meets your SQL Server compatibility and performance needs before committing to production use.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires python-tds and SQLAlchemy to be installed; python-tds handles the underlying TDS protocol implementation.
- Low install friction with a pure-Python wheel distribution.
- Maintenance is dormant—last commit was 2024-09-14 but no activity for 699 days prior; the repository remains unarchived but receives infrequent updates.
License · maintenance · safety
MIT (permissive) — MIT license permits commercial and private use with minimal restrictions, making it safe for most projects.
last release 2024-09-14 (699 days) · last repo commit 2024-09-14 · 27 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 846,855 downloads/mo, #4,914 on PyPI
Alternatives
Verify before relying
pip install sqlalchemy-pytds
from sqlalchemy import create_engine
engine = create_engine('mssql+pytds://user:password@server/database')- Whether python-tds itself is actively maintained and suitable for production SQL Server workloads
- Compatibility with modern Python versions beyond those listed in classifiers (3.5 is the latest declared)
- Whether this dialect supports the full range of SQL Server features or has known limitations
What it is and what it does
sqlalchemy-pytds is a SQLAlchemy dialect that bridges SQLAlchemy's ORM and query layer to Microsoft SQL Server databases using the TDS protocol. It depends on python-tds for the low-level protocol implementation and SQLAlchemy for the database abstraction layer. The package allows developers to write database code using SQLAlchemy's standard API while connecting to SQL Server instances.
The package is in Beta status and has been dormant for extended periods, though the repository remains unarchived. It sits in the top 5000 PyPI packages by download volume, suggesting some production use, but the infrequent maintenance and outdated Python version classifiers warrant caution when evaluating it for new projects.
Use it for
- Building SQLAlchemy applications that need to connect to SQL Server without using ODBC-dependent drivers
- Using SQLAlchemy's ORM to query and manipulate SQL Server data in a database-agnostic way
- Environments where pure-Python TDS connectivity is preferred over compiled driver libraries
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, with conditions.
The package is permissively licensed and has low install friction, but its dormant maintenance status and outdated Python version classifiers mean you should verify that python-tds meets your SQL Server compatibility and performance needs before committing to production use.
Install
sqlalchemy-pytds on PyPI
Before you install
Low install friction with a pure-Python wheel distribution. Maintenance is dormant—last commit was 2024-09-14 but no activity for 699 days prior; the repository remains unarchived but receives infrequent updates.
Requires python-tds and SQLAlchemy to be installed; python-tds handles the underlying TDS protocol implementation.
License in practice
MIT license permits commercial and private use with minimal restrictions, making it safe for most projects.
Quickstart
pip install sqlalchemy-pytds
from sqlalchemy import create_engine
engine = create_engine('mssql+pytds://user:password@server/database')Verify before relying
- Whether python-tds itself is actively maintained and suitable for production SQL Server workloads
- Compatibility with modern Python versions beyond those listed in classifiers (3.5 is the latest declared)
- Whether this dialect supports the full range of SQL Server features or has known limitations
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagespython-tdsSQLAlchemy |
| Maintenance | Dormant 699 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 846,855 / month, #4,914 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaProgramming Language :: PythonProgramming Language :: Python :: 2.7Programming Language :: Python :: 3.3Programming Language :: Python :: 3.4Programming Language :: Python :: 3.5Topic :: Database :: Front-Ends |
Evidence: sqlalchemy_pytds-1.0.2-py2.py3-none-any.whl
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See also python-tds · teradatasqlalchemy · sqlalchemy-databricks · pymssql · mssql · mssql-python · sqlalchemy-solr · databricks-sqlalchemy · sqlalchemy-drill · sqlalchemy-firebird