2.4 List- Change, Insert, Append

Duration: 4 min

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Module outline

  1. About the Course: About the Course
  2. Paper-1 & 2 | Basic Numeracy: Ratio and Proportion (Ratios), Divisibility Rules, Mixture and Alligation, Permutation and Combination, Logarithm, Number System, HCF LCM, Sequence and Series (Series), Speed Time and Distance, Percentage, Average, Mensuration and Geometry, Age Problems, Arithmetic, Statistics, Probability, Profit and Loss, Simple Interest and Compound Interest, Partnership, Speed Mathematics and Basic Mathematics, Algebra, Powers and Exponents (Surds and Indices), Time and Work, Pipe and Cistern, RSSB Specific Videos - Basic Numeracy
  3. Paper-1 & 2 | Data Interpretation: Data Interpretation
  4. Paper-1 & 2 | General Mental Ability: Mental Ability, RSSB Specific Videos - Mental Ability
  5. Paper-1 & 2 | Logical Reasoning and Analytical Ability: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Syllogisms, Seating Arrangements, Blood Relations, Directions (Direction Test), Analytical Reasoning (Counting Figures Reasoning), Puzzle Solving (Puzzles), Calendar, Clock, Cubes & Dices, Venn Diagram, Analogy, Ranking, Order and Sequence, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Data Arrangement, Logical Sequence Of Words, Crypt Arithmetic
  6. Paper-1 & 2 | Decision Making and Problem Solving: Selection Decision Table (Decision Making)
  7. Paper-1 | General Science: Physics, Biology, Chemistry, RSSB Specific Videos
  8. Paper-1 | General Awareness: State Wise GK, GK- Current Affairs
  9. Paper-2 | Fundamentals of Computer: Basics of COA, Number System, Floating Point Rep, Number Representation
  10. Paper - 2 | Digital Logic Systems: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits
  11. Paper-2 | Operating Systems: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Linux OS, Distributed Systems
  12. Paper-2 | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, Relational Calculus, File Organization & Indexing, Transaction Management, Concurrency Control
  13. Paper-2 | Data Structures: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
  14. Paper-2 | C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  15. Paper 2 | Oops, C++, Java: Language Design, OOPS with C++, Java, .Net Programming, Java Fundamentals
  16. Paper 2 | Python: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  17. Paper 2 | Emerging Trends and AI: Emerging Tech Trends, Artificial Intelligence
  18. Paper-2 | Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Advanced Algorithms
  19. Paper 2 | Data Communication and Network Security: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Security, Ethical Hacking
  20. Paper-2 I Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  21. Paper-2 | Computer Organization and Architecture: Cache Memory Organization, Input Output Organisation, Instr Formats & Modes, Control Unit Design, Register Transfer and Microoperations
  22. Paper-2 | Web Development: JavaScript-Basics, HTML Basics, CSS, XML
  23. Pedagogy: Child Development, Concept of Pedagogy, Psychology, Theories, Inclusive Education, Experiential Pedagogy, Curriculum Framework & Reforms, National Education Policy (NEP) 2020
  24. Live Sessions: RSSB Live Sessions
  25. RSSB Paper 1 - Full Mock Tests:
  26. RSSB Paper 2 - Full Mock Tests:
  27. SCI Previous Year Papers:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This video is a Python programming tutorial that demonstrates how to modify list data items. The instructor begins by introducing the topic of changing, inserting, and appending items in a list. The first section, titled 'Change List Data Items', shows an example where a list named 'EmpName' is initialized with four names. The instructor explains how to change an item at a specific index, using the syntax 'EmpName[1] = 'Romy'', which replaces the second element. He then demonstrates changing a slice of the list, 'EmpName[0:2] = ['Romy', 'Jack']', which replaces the first two elements. The second section, 'Insert New Data Items in List', explains the 'insert' method, showing how to add an item at a specific position, such as 'EmpName.insert(0, 'Jam')', which adds 'Jam' at the beginning of the list. The final section, 'Append New Data Items at End of the List', covers the 'append' method, which adds an item to the end of the list, as shown by 'EmpName.append('Jam')'. The instructor uses a digital whiteboard to write code and draw diagrams to illustrate the changes to the list structure.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video starts with a title slide for a Python lecture, showing the Python logo and the topic 'List : Change, Insert, Append'. The instructor, a man in a black polo shirt, stands in front of a large screen. He begins the lesson by introducing the concept of changing list data items. The slide changes to a new title, 'Change List Data Items', and displays a code example. The code initializes a list named 'EmpName' with the values ['Jhon', 'Bob', 'Marry', 'Cherry']. The instructor explains the syntax for changing a single item, writing 'EmpName[1] = 'Romy'' on the screen and explaining that this will replace the second element. He then shows how to change a slice of the list, writing 'EmpName[0:2] = ['Romy', 'Jack']' and explaining that this replaces the first two elements. He uses a yellow marker to draw arrows and write the expected output of the list after each change, visually demonstrating the modification process.

  2. 2:00 – 4:02 02:00-04:02

    The instructor transitions to the next topic, 'Insert New Data Items in List'. The slide now shows the same initial list 'EmpName = ['Jhon', 'Bob', 'Marry', 'Cherry']'. He explains the 'insert' method, writing the code 'EmpName.insert(0, 'Jam')' on the screen. He points to the code, explaining that the first argument is the index where the new item will be inserted, and the second is the item itself. He then draws the resulting list, '['Jam', 'Jhon', 'Bob', 'Marry', 'Cherry']', to show the new order. Next, the slide changes to 'Append New Data Items at End of the List'. The instructor explains the 'append' method, writing 'EmpName.append('Jam')' and stating that this adds the item to the end of the list. He draws the final list, '['Jam', 'Jhon', 'Bob', 'Marry', 'Cherry', 'Jam']', to illustrate the result. The video concludes with a 'Thank You' slide as the instructor finishes his explanation.

The video provides a clear, step-by-step tutorial on fundamental list manipulation in Python. It progresses logically from the most basic operation, changing a single element, to more complex ones like changing a slice, inserting an item at a specific position, and appending an item to the end. The instructor effectively uses a digital whiteboard to write code and draw diagrams, making the abstract concepts of list indexing and modification concrete and easy to understand. The consistent use of a single example list ('EmpName') throughout the lesson helps students focus on the syntax and behavior of each method without being distracted by new data.

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