Intro to Python
- 1. Introduction to PythonIntroduction to Python ProgrammingProgramming
- 2. Why Python?Why Python? Python is what is referred to as an object-oriented programming language (OOP) OOP is a programming style that allows programmers to reuse pre made code. ◦ Don’t need to recreate the wheel Thus creates a much more efficient programming language so programmers don’t have to spend tedious amounts of time creating code that had been published. Simple Less Syntax We will be discussing OOP as we move through the course.
- 3. What is Python?What is Python? Python is a general purpose programming language. That means you can use Python to write code for any programming tasks. ◦ Google search engine ◦ Mission critical projects in NASA, ◦ Processing financial transactions at New York Stock Exchange. ◦ Data Analytics
- 4. Interpreted?Interpreted? Python is interpreted, which means that python code is translated and executed by an interpreter one statement at a time. This means you can run commands/code on the command prompt… Through a command prompt with a text file… Using an IDE
- 5. What Does It Look Like?What Does It Look Like? Python Statements
- 6. Parts of a Python ProgramParts of a Python Program Def: Source Code is the program text entered into an interpreter by the programmer. ◦ The saved file is referred to as, the source file. ◦ The main file in a python program, called main ◦ Can program on the command prompt The extension to a source file is “.py” ◦ Xcel - .xls ◦ Power Point - .ppt Two main parts to a source file ◦ Libraries ◦ Main code
- 7. Good programming proclamationsGood programming proclamations Using comments to denote programs or sections of code ◦ A comment beginning with # is called a single-line comment because it terminates at the end of the current line. ◦ You also may use a multi-line comment—possibly containing many lines—begins with ’’’ and ends with ’’’. You use blank lines, space characters and tab characters (i.e., “tabs”) to make programs easier to read. ◦ Together, these characters are known as white space. ◦ White-space characters are USUALLY ignored by the interpreter. ◦ Python has its own rules with white space
- 8. CheckpointCheckpoint 1. What is OOP? 2. What is the name of the file and code that the text for a program is entered into the interpreter? 3. What is a library? Why aren’t all the functions preloaded? 4. What are the two styles of comments you can utilize and their symbols?
- 9. Printing a Line of TextPrinting a Line of Text print(“ “) Anything placed inside the quotes will be printed on the screen upon execution of the print command.
- 10. Printing a Line of TextPrinting a Line of Text print(“ “) Anything placed inside the quotes will be printed on the screen upon execution of the print command.
Editor's Notes
- #6: Common elements in programming languages: Key Words Programmer-Defined Identifiers Operators Punctuation Syntax