Python Lists Made Easy 🔥 | Creating, Accessing & Updating Lists | Python Lesson 11
About this video
Learn Python Lists – Creating, Accessing and Updating in an easy and practical way with PEARL INSTITUTE BATALA.
In Lesson 11 of our Python + Machine Learning Practical Course, you will learn how Python Lists allow us to store multiple values inside a single variable.
This lesson is specially designed for beginners and explained with simple practical examples in Hindi/Hinglish.
✅ In this lesson you will learn:
• What is a Python List?
• How to Create a List
• Square Brackets [ ] in Lists
• Accessing List Items
• List Indexing
• Why Indexing Starts from 0
• Negative Indexing
• Using -1 to Access the Last Item
• Updating List Items
• Lists are Changeable
• Using len() with Lists
• Storing Different Data Types in a List
• Practical Student Marks Example
• IndexError: List Index Out of Range
• Common Beginner Mistakes
• Quick Practice Question
• Use of Lists in Machine Learning
💻 Simple Python List Example
courses = ["Python", "Java", "Web"]
Access the first item:
print(courses[0])
Output:
Python
Access the last item using negative indexing:
print(courses[-1])
Output:
Web
Update an item:
courses[1] = "C++"
Now the list becomes:
["Python", "C++", "Web"]
📌 Important Rule
Python List indexing starts from 0.
For a list containing 3 items, the valid positive indexes are:
0, 1, 2
Trying to access index 3 will cause:
IndexError: list index out of range
🎯 Perfect For:
Python Beginners
Coding Beginners
School & College Students
BCA Students
B.Sc. IT Students
MCA Students
Computer Course Students
Machine Learning Beginners
Students Learning Programming from Scratch
🤖 Machine Learning Connection
Python Lists are useful for temporarily storing values, labels, marks and feature values before working with structures such as NumPy Arrays and Pandas DataFrames.
📚 Course: Python + Machine Learning Practical Course
🎓 Lesson 11: Python Lists – Creating, Accessing and Updating
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🔜 Next Lesson: Python Tuples – Ordered Immutable Data
