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PART 10 - Python Tutorial | Functions In Python With Examples
This document provides an overview of functions in Python, covering their definition, usage, and benefits like reusability and avoidance of repetitive code. It explains user-defined versus built-in functions, how to pass information through parameters and arguments, and the difference between positional and keyword arguments. Additionally, it discusses return values and various ways to call functions, including examples involving lists and dictionaries.
PART 10 - Python Tutorial | Functions In Python With Examples
- 1. PART 10 FUNCTIONS INPYTHON • WANT TO LEARN PYTHON PROGRAMMING? (SUBTITLES) • SUBSCRIBE • TELEGRAM – FreeCodeSchool • Twitter – shivammitra4 • LinkedIn – shivammitra • Link in description
- 2. DEFINING AND CALLINGA FUNCTION IN PYTHON
- 3. WHY TO USEFUNCTIONS ? • Reusability – finding greater of two numbers • Avoiding repetitive code • Users do not need to know how function is working
- 4. USER DEFINED VSBUILT-IN FUNCTIONS • print(), len(), sort() – built-in
- 5. PASSING INFORMATION TOA FUNCTION Multiple calls
- 6. FUNCTION PARAMETERS ANDARGUMENTS • Parameters -> Function definition inputs • Arguments -> Function call inputs • Used interchangeably
- 7. PASSING ARGUMENTS TOFUNCTIONS • A function can have multiple parameters • A function call may need multiple arguments • Positional arguments • Keyword arguments
- 8. POSITIONAL ARGUMENTS • Interchangethe arguments • Increase/Decrease the number of arguments
- 9. KEYWORD ARGUMENTS • Interchange •Wrong keyword
- 10. DEFAULT VALUES • Onecan define default values for each function parameter • If an argument for a parameter is not passed, default value is used
- 12. DIFFERENT WAYS OFCALLING A FUNCTION
- 13. RETURN VALUES • Afunction doesn’t always have to display the output • It can also return value back to the function call • return statement is used
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- 16. USING A FUNCTION WITHWHILE LOOP
- 18. PASSING A LISTTO A FUNCTION
- 19. MODIFYING A LISTIN A FUNCTION
- 20. PREVENTING A FUNCTION FROMMODIFYING A LIST
- 21. MODIFYING A DICTIONARY INA FUNCTION
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