Lecture1_about python introduction variables
- 2. What is Python? Python is simple & easy Free & Open Source High Level Language Developed by Guido van Rossum Portable
- 4. Python Character Set Letters – A to Z, a to z Digits – 0 to 9 Special Symbols - + - * / etc. Whitespaces – Blank Space, tab, carriage return, newline, formfeed Other characters – Python can process all ASCII and Unicode characters as part of data or literals
- 5. Variables A variable is a name given to a memory location in a program. name = "Sonal" age = 30 price = 25.99
- 6. Memory name = "Sonal" age = 30 price = 25.99
- 9. Data Types
- 10. Keywords Keywords are reserved words in python. *False should be uppercase
- 11. Print Sum
- 12. # Single Line Comment """ Multi Line Comment """ Comments in Python
- 13. Types of Operators An operator is a symbol that performs a certain operation between operands. Arithmetic Operators ( + , - , * , / , % , ** ) Relational / Comparison Operators ( == , != , > , < , >= , <= ) Assignment Operators ( = , +=, -= , *= , /= , %= , **= )
- 14. Type Conversion a, b = 1, 2.0 sum = a + b #error a, b = 1, "2" sum = a + b
- 15. Type Casting a, b = 1, "2" c = int(b) sum = a + c
- 16. Type Casting
- 17. Input in Python input( ) #result for input( ) is always a str int ( input( ) ) #int float ( input( ) ) #float give code eg of all 3 input( ) statement is used to accept values (using keyboard) from user
- 18. Let‘s Practice Write a Program to input 2 numbers & print their sum. WAP to input side of a square & print its area WAP to input 2 floating point numbers & print their average WAP to input 2 int numbers, a and b. Print True if a is greater than or equal to b. If not print False.
- 19. Let‘s Practice WAP to input side of a square & print its area.
- 20. Let‘s Practice WAP to input 2 floating point numbers & print their average.
- 21. Let‘s Practice WAP to input 2 int numbers, a and b. Print True if a is greater than or equal to b. If not print False.