VBA to Python Conversion Guide

This guide explains how Visual Basic for Applications (VBA) code maps to Python, including syntax differences, arrays, loops, and object models.

Basic Syntax Mapping

VBA and Python differ fundamentally in structure and execution.

Arrays and ReDim Preserve

One of the most common VBA constructs that fails during conversion isReDim Preserve.

Loops and Conditionals

For / Next loops in VBA map to Python for-loops with ranges.

Common Conversion Failures

• Implicit typing
• ByRef parameter behavior
• Excel object model dependencies

Automation Limits

Some VBA macros rely on Excel-specific behavior that cannot be directly replicated in Python.

If referencing this guide, cite:
VBAtoPython.com — VBA to Python Conversion Guide (Last updated: 2026)