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pyodbc

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library5.3.0pypypi✓ verified 28d ago

pyodbc is an open-source Python module that provides a simple and consistent interface for connecting to various databases via ODBC (Open Database Connectivity), implementing the DB API 2.0 specification. It allows for executing SQL queries, retrieving results, and managing database operations efficiently. As of version 5.3.0, it supports Python 3.9 through 3.14 and is actively maintained with frequent releases.

pip install pyodbc
INSTALL
IMPORT
SIG · PYODBC
P
pyodbc
databasepythonv5.3.0
Install
1.6s avg
Import
—
Disk
18MB
Pass rate
10/ 10
Env Coverage10 / 10
glibc
3.9–3.13
musl
3.9–3.13
Install & Compatibility
Where this runs
tested against v5.3.0 · 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 · 22.1MB
glibc
py 3.10–3.95 runs
installs and imports cleanly · install 1.6s · import 0.000s · 19MB
18MB installed
● package 18MB
Code
Verified usage

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

pyodbc
✓ import pyodbc
connect
✓ cnxn = pyodbc.connect('DSN=your_dsn;UID=user;PWD=pass')

This quickstart demonstrates how to establish a connection to an ODBC database using `pyodbc`, execute SQL commands, insert data, and retrieve results. It uses environment variables for connection details and requires an appropriate ODBC driver and DSN (or DSN-less connection string) to be pre-configured on your system.

import pyodbc import os # NOTE: This example requires an ODBC driver and DSN to be configured on your system. # For Windows, common drivers like 'SQL Server' might be available. # For Linux/macOS, you might need to install unixODBC and specific database drivers. # Example DSN-less connection string (replace with your actual details): DB_DRIVER = os.environ.get('PYODBC_DRIVER', '{ODBC Driver 17 for SQL Server}') DB_SERVER = os.environ.get('PYODBC_SERVER', 'your_server.database.windows.net') DB_DATABASE = os.environ.get('PYODBC_DATABASE', 'your_database_name') DB_UID = os.environ.get('PYODBC_UID', 'your_username') DB_PWD = os.environ.get('PYODBC_PWD', 'your_password') connection_string = ( f"DRIVER={DB_DRIVER};" f"SERVER={DB_SERVER};" f"DATABASE={DB_DATABASE};" f"UID={DB_UID};" f"PWD={DB_PWD};" ) try: cnxn = pyodbc.connect(connection_string) cursor = cnxn.cursor() # Example: Create a table (if it doesn't exist) try: cursor.execute("CREATE TABLE #TestTable (id INT, name VARCHAR(50))") print("Table #TestTable created.") except pyodbc.ProgrammingError as e: if 'There is already an object named' in str(e): # For SQL Server temp table print("Table #TestTable already exists, skipping creation.") else: raise # Example: Insert data cursor.execute("INSERT INTO #TestTable (id, name) VALUES (?, ?)", 1, 'Alice') cursor.execute("INSERT INTO #TestTable (id, name) VALUES (?, ?)", 2, 'Bob') cnxn.commit() # Commit changes if autocommit is not enabled print("Data inserted.") # Example: Select data cursor.execute("SELECT id, name FROM #TestTable") rows = cursor.fetchall() print("\nFetched Data:") for row in rows: print(f"ID: {row.id}, Name: {row.name}") except pyodbc.Error as ex: sqlstate = ex.args[0] print(f"Database Error (SQLSTATE: {sqlstate}): {ex}") finally: if 'cnxn' in locals() and cnxn: cnxn.close() print("\nConnection closed.")
Debug
Known issues
breakingpyodbc 5.x dropped support for Python 2.x. If you are on an older Python 2 environment, you must use pyodbc 4.x or migrate to Python 3.
fix
Upgrade to Python 3.x and pyodbc 5.x, or stay on pyodbc 4.x for Python 2.7.
affects: <5.0.0
breakingpyodbc 5.3.0 dropped support for Python 3.8, requiring Python 3.9 or newer.
fix
Upgrade your Python environment to 3.9 or later, or use pyodbc < 5.3.0 for Python 3.8.
affects: 5.3.0+
gotchapyodbc is a bridge to ODBC drivers. You *must* install an appropriate ODBC driver manager (e.g., unixODBC on Linux/macOS) and specific database ODBC drivers (e.g., SQL Server ODBC Driver) on your system for pyodbc to function. This is an external, operating-system-level dependency, not a Python package dependency.
fix
Refer to `pyodbc` documentation or your database vendor's documentation for installing the necessary ODBC drivers and driver manager for your operating system.
affects: All
gotchaTransactions are not automatically committed by default. You must explicitly call `connection.commit()` after `INSERT`, `UPDATE`, or `DELETE` operations, or pass `autocommit=True` to `pyodbc.connect()` if you want each statement to commit immediately.
fix
Call `cnxn.commit()` after data modification statements or initialize connection with `pyodbc.connect(..., autocommit=True)`.
affects: All
gotchaVersion 5.0.0 introduced a bug preventing `bytes` objects from being passed in the `attrs_before` parameter of `pyodbc.connect()`, commonly used for Azure authentication tokens. This was fixed in 5.0.1.
fix
Upgrade to pyodbc 5.0.1 or later.
affects: 5.0.0
gotchamacOS ARM (Apple Silicon M1/M2) users experienced issues with precompiled binaries in early 5.x releases. Dedicated Mac ARM wheels were introduced and stabilized in 5.1.0.
fix
Upgrade to pyodbc 5.1.0 or later for stable macOS ARM support.
affects: 5.0.0 - 5.0.1
Errors
Common errors & fixes
ModuleNotFoundError: No module named 'pyodbc'
The pyodbc library is not installed or is not available in the current Python environment.
fix
pip install pyodbc
pyodbc.OperationalError: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect)')
The specified ODBC driver is not installed on the system, is incorrectly named, or is not correctly configured.
fix
Install the appropriate ODBC driver for your database (e.g., ODBC Driver 17/18 for SQL Server) and ensure its name in the connection string is correct.
pyodbc.OperationalError: ('28000', '[28000] [Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Login failed for user \'your_username\'. (18456) (SQLDriverConnect)')
The provided username or password in the connection string is incorrect, or the user lacks the necessary database permissions.
fix
Verify that the username and password in your connection string are correct and that the user has appropriate database access permissions.
AttributeError: 'NoneType' object has no attribute 'cursor'
The database connection failed to establish, resulting in a `None` connection object, and you are attempting to call the `.cursor()` method on it.
fix
Ensure the `pyodbc.connect()` call succeeds by handling potential exceptions or verifying the connection object is not `None` before creating a cursor.
Upgrade
Version history
5.3.0latest on PyPI · released Oct 17, 2025
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Dependencies

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Resources
pyodbc — pip install pyodbc · libregistry