Strings in Python | Python From Scratch | Lec. 06
In this lecture, we study Strings in Python, one of the most important built-in data types used in programming.
We will understand how strings are stored, manipulated, sliced, and processed using various built-in operations and methods.
Strings in Python
📌 Topics Covered
🔹 Introduction to Strings
• What is a String?
• Immutable Unicode Sequence
🔹 String Literals
• Single Quotes
• Double Quotes
• Triple Quotes
• Escape Sequences
🔹 String Indexing & Slicing
• Positive Indexing
• Negative Indexing
• s[start:stop:step] Syntax
🔹 String Operations
• Concatenation
• Repetition
• Membership Operators (in, not in)
🔹 String Methods
• Searching & Testing Methods
• Modification Methods
• Split & Join Operations
🔹 String Formatting
• f-Strings
• format() Method
🔹 Performance & Common String Patterns
• Examples and intuition
🎯 Why this topic is important?
Strings are extensively used in data processing, problem solving, text manipulation, and software development.
🎯 Important for:
Python Programming
Data Science
Coding Interviews
Programming Fundamentals
📌 Includes practical examples, slicing tricks, and commonly used string methods.
Master strings → Master text processing in Python 🚀
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