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Python_programming.pptx
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- 2. DATA TYPES • DataTypes define the type of value a variable can store and can perform operations on. • Example : A variable with data type as int will store only integer type values and not decimal or String values.
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- 4. OPERATORS •Operators are specialsymbols that are used to perform operations on variables (or even literals). •The values on which they perform operations are called operands.
- 5. ARITHMETIC: -ADD(+) -SUBTRACT(-) -DIVISION(/) -FLOOR DIVISION(//) -EXPONENT(**) - MULTIPLICATIO N(*) LOGICAL: -AND(and) -OR(or) -NOT(not) IDENTITY: -IS(is) -IS NOT(is not) MEMBERSHIP: -IN(in) -NOTIN(not in) ASSIGNMENT: -(=) And SHORTCUT operators. RELATIONAL: -GREATER(>) -SMALLER(<) -EQUAL(==) -GREATER THAN OR EQUAL(>=) -SMALLER OR EQUAL(<=) -NOT EQUAL(!=)
- 6. EXPRESSIONS An expression isdefined as a combination of constants, variables, and operators. An expression always evaluates to a value. A value or a standalone variable is also considered as an expression but a standalone operator is not an expression. Example: (i) 100 (ii) num (iii) "Global" + "Citizen" (iv) 3.0 + 3.14 (v) 23/3 -5 * 7(14 - 2)
- 7. STATEMENT A statement isa unit of code that the Python interpreter can execute. This can be an assignment statement, a print statement, etc. Eg- • print(“This is a print statement.”) • a=5 print(a)
- 8. INPUT Input in Pythoncan be done by using the input() function, that prompts the user to enter an input. The input is always treated as a String, but can be later converted into the desired data type using Type Conversion. Eg- input(“Enter the number you want to store in a:”)
- 9. OUTPUT Output in Pythoncan be done by using the print() function that prints the statement or value or result of an expression that is written in parenthesis. Eg- print(“This is an example of a print statement.”)
- 10. DEBUGGING Debugging is theprocess of removing any mistake or error in the program code. These can be Syntax errors (when the syntax is not followed properly), or Logical errors (when there is an error in the program logic; these are not detected by the Python interpreter) or Runtime errors (where the program may run but doesn’t give the expected output.
- 11. TYPE CONVERSION Type Conversionis the process of converting one data type to another data type, either by user intervention (Explicit) or automatically by the Python interpreter (Implicit). Eg- Implicit—a=10;b=2.0 print(a+b) #output is in float-12.0 Explicit—a= int(“56”) print(a) #output will be integer type a
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