DLL load failure with Python3 32bit PyInstaller UPX 32bit under Windows 10 64bit

Title: Resolving DLL Load Failure with Python3 (32-bit) + PyInstaller + UPX (32-bit) on Windows 10 (64-bit)
When working with Python applications on Windows, you might encounter DLL load failures, especially when using PyInstaller to create standalone executables and UPX for compression. This tutorial aims to guide you through the process of resolving DLL load failures in a Python3 (32-bit) environment on a Windows 10 (64-bit) system.
Python3 (32-bit): Ensure you have a 32-bit version of Python3 installed. You can download it from the official Python website: Python Downloads.
PyInstaller: Install PyInstaller using pip:
UPX (32-bit): Download the UPX executable for 32-bit from the official UPX website: UPX - Ultimate Packer for eXecutables. Ensure that the UPX executable is in your system's PATH.
Use PyInstaller to create a standalone executable from your script:
Now, compress the executable using UPX:
Try running the compressed executable:
If you encounter a DLL load failure, use the Dependency Walker tool to diagnose missing DLLs.
Copy the missing DLLs into the same directory as your executable or add their paths to the system PATH.
Run the compressed executable again:
Repeat Steps 5-7 until no DLL load failures occur. Adjust the PATH or include necessary DLLs until the executable runs without issues.
Resolving DLL load failures in a Python3 (32-bit) + PyInstaller + UPX environment on Windows 10 (64-bit) involves diagnosing missing DLLs and ensuring they are accessible. Following these steps should help you create a functional standalone executable for your Python application.
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