Character Classes Dry Run in PYTHON

Character Classes is an interactive PYTHON dry run visualizer from the Regularexpressions programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Character Classes Program Code

import re

text = "ID: A7, B9, C12"
codes = re.findall("[A-Z][0-9]+", text)

print(codes)

View the complete Regularexpressions programs page.