Hey there, let's work through this pyodbc issue you're hitting. It's super common with older Python versions like 3.4.4—here are actionable steps to get it sorted:

1. Use the correct pip for your Python 3.4 installation #

Sometimes the pip command points to a different Python version on your system, even if you run it from /Python/Scripts. To avoid mismatches, call pip directly through Python 3.4's module system, and specify a pyodbc version that supports 3.4 (newer versions drop support for this old build):

python3.4 -m pip install pyodbc==4.0.30

Version 4.0.30 is the last official pyodbc release compatible with Python 3.4, which is likely why your import fails even though pip claims the package is installed.

2. Uninstall and reinstall to fix corrupted installations #

If your initial install got messed up, wipe the existing files first:

python3.4 -m pip uninstall -y pyodbc

Then re-run the version-specific install command from step 1 to get a clean, working setup.

3. Verify pyodbc files exist in your site-packages folder #

Head to C:\Python34\Lib\site-packages and check for these items:

• A pyodbc folder
• A pyodbc-4.0.30.dist-info folder
• A .pyd compiled extension file (critical for Windows)
  If any are missing, the installation didn't complete properly. Download the matching wheel file for your system (look for cp34 in the filename, e.g., pyodbc-4.0.30-cp34-none-win_amd64.whl for 64-bit Windows), then install it directly:

python3.4 -m pip install path\to\your\downloaded\pyodbc-wheel-file.whl

4. Confirm your Python path includes site-packages #

Open a Python 3.4 shell and run this to check if your site-packages folder is in the module search path:

import sys
print(sys.path)

You should see C:\Python34\Lib\site-packages listed. If not, you can add it temporarily with:

sys.path.append("C:\\Python34\\Lib\\site-packages")

For a permanent fix, add the path to your system's PYTHONPATH environment variable.

After trying these steps, fire up your Python 3.4 shell again and test import pyodbc—it should work without the ImportError.

内容的提问来源于stack exchange，提问作者ez4nick