Python Regular Expressions (regex): Forming a Regular Expression in Python

Half the battle in writing a good regular expression (regex) is understanding how the computer -- not just the Python interpreter -- reads it. The basic process for understanding this has three parts to it:

1. Understanding how a computer reads and recognizes character strings in general
2. Understanding how it understands meta-characters and regular expression symbols
3. Understanding how to combine those characters and symbols into meaningful expressions to match a group of strings

• Half the Battle: How Python Understand Regular Expressions
• How Python Views a String: Every Dog has Its Null Value
• How Did the Python Eat the String? One Byte at a Time
• Python Strings Along Dogs and Cats
• "I never metacharacter I didn't like."
• Python's Compound Metacharacters
• Curly Braces in Python Regular Expressions
• Tightening Python's Grip: Ranges in Python Pattern Matching
• An Example of Pattern Matching in Python
• An Explanation of Forming RegEx in Python