Python idle introduction(3)
- 2. IDLE An interpreter is a program that reads and executes codes. Python is a great example of an interpreter Fahad Ashrafi
- 3. print("Hello World") What Happened Here Fahad Ashrafi
- 4. Python Basic Syntax In order for the Python interpreter to process and execute your instructions properly, you must write your code in the format that it can understand. In programming, syntax refers to the set of rules that define the correct form, combination, and sequence of words and symbols Fahad Ashrafi
- 5. WHY, Its Case Sensitive Fahad Ashrafi
- 6. Key Words • PLEASE NOTE • All the keywords except True, False and None are in lowercase and they must be • written as it is. • Keyword are case sensitive. • Example : is print, for, in, Fahad Ashrafi
- 7. Python’s Identifiers An identifier is a name given to a variable, class, function, string, list, dictionary, module, and other objects. In python, it helps differentiating one entity from another. Fahad Ashrafi
- 8. Using Quotation Marks Quotation marks are used to indicate string literals. You can use single (΄), double (“), or triple (”’) quotes but you must observe consistency by using the same quotation marks to begin and end the string. Examples: ‘Fahad’ “Karachi” ”‘age:”’ Fahad Ashrafi
- 9. Statements Statements are expressions that you write within a program which are, in turn, read and executed by the Python interpreter. Python supports statements such as if statement, for statement, while statement, break statement, and assignment statements. Fahad Ashrafi
- 10. Variables A variable is a reserved memory location that can be used to store values. This means that when you create a variable you reserve some space in the memory. Fahad Ashrafi
- 11. Memory Location To check the memory location of the above variables, you’ll use the id() operator. But first, open you IDLE and type the variables and their values showed above. Figure 7. Here are the variable assignments statements. Now you can type these assignments: >>>id(employee) >>>id(score) >>>id(counter) >>>id(comment) Once you Fahad Ashrafi