10.3 Flow of Execution of Function

Duration: 2 min

This video lesson is available to enrolled students.

Return to /learn/RSSB-SENIOR-COMPUTER-INSTRUCTOR/paper-2-python/functions-modules/scope-flow/asset-103-flow-of-execution-of-function after enrolling

Inside: a video lesson and guided study material.

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 lecture on the flow of execution in Python functions. The instructor begins by introducing the topic with a slide titled 'Flow of Execution of Functions'. He then presents a six-step process for how a function executes: 1. Function definition is read, 2. Function call occurs, 3. Control moves to function, 4. Statements move to function, 5. Return value executes, and 6. Control comes back to the calling statement. To illustrate this, he writes a function definition `def sum(a,b,c):` and a return statement `return a+b+c`. He then assigns values to variables `a=10`, `b=20`, and `c=30`, and demonstrates a function call `Sum(a,b,c)`. He uses green lines and numbers to visually map the flow of control through each step. The lecture concludes with a second example using a function `display()` that prints messages before and after a recursive call to itself, demonstrating the call stack and the order of execution.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video starts with a title slide for a Python lecture on 'Flow of Execution of Functions'. The instructor, standing in front of a digital whiteboard, introduces the topic. He then displays a list of six steps that describe the flow of execution for a function in Python. He proceeds to write a function definition `def sum(a,b,c):` and a return statement `return a+b+c`. He assigns values to variables `a=10`, `b=20`, and `c=30`, and writes a function call `Sum(a,b,c)`. Using a green pen, he draws lines and numbers to visually connect the steps in the list to the corresponding code, illustrating how control moves from the calling statement to the function definition and back.

  2. 2:00 – 2:28 02:00-02:28

    The instructor transitions to a new example to further explain the flow of execution. He writes a new function `def display():` which contains a print statement `print("Inside function")`. He then adds a call to this function, `display()`, and prints messages before and after the call. He uses a green pen to draw a large loop around the function definition and the call, visually representing the recursive nature of the function and the flow of control as it enters and exits the function block. The instructor explains that the code will print 'Inside function' and 'After function call' in a specific order, demonstrating the concept of the call stack.

The video provides a clear, step-by-step explanation of how Python executes functions. It begins with a conceptual framework of six steps, which is then concretely demonstrated with a simple function example. The use of visual annotations on the digital board effectively maps the abstract concept of control flow to the actual code. The second example with the `display` function reinforces the concept by showing the order of execution in a recursive context, making the abstract idea of the call stack tangible for the learner.

Loading lesson…