Tips For CSE

  Step 1: Select Version of Python to Install The installation procedure involves downloading the official Python .exe installer and running it on your system. The version you need depends on what you want to do in Python. For example, if you are working on a project coded in Python version 2.6, you probably need that version. If you are starting a project from scratch, you have the freedom to choose. If you are learning to code in Python, we recommend you  download both the latest version of Python 2 and 3 . Working with Python 2 enables you to work on older projects or test new projects for backward compatibility. Step 2: Download Python Executable Installer Open your web browser and navigate to the  Downloads for Windows section  of the  official Python website . Search for your desired version of Python. At the time of publishing this article, the latest Python 3 release is version 3.7.3, while the latest Python 2 release is version 2.7.16. Select a lin...

  PYTHON SYNTAX Hello World! If programming is the act of teaching a computer to have a conversation with a user, it would be most useful to first teach the computer how to speak. In Python, this is accomplished with the  print  statement. print "Hello, world!" print "Water; there is not a drop of water there! Were N iagara but a cataract of sand, would you travel yo ur thousand miles to see it?" A  print  statement is the easiest way to get your Python program to communicate with you. Being able to command this communication will be one of the most valuable tools in your programming toolbox.

Comments And Receiving Input in Python :  Comments : We use comments to add notes to our code. Good comments explain the hows and whys, not what the code does. That should be reflected in the code itself. Use comments to add reminders to yourself or other developers, or also explain your assumptions and the reasons you’ve written code in a certain way. # This is a comment and it won’t get executed. # Our comments can be multiple lines. Taking User Input: Receiving Input : We can receive input from the user by calling the input() function. birth_year = int ( input ( ‘Birth year: ‘ )) The input() function always returns data as a string. So, we’re converting the result into an integer by calling the built-in int() function.

 Variables In Python :  Variables : We use variables to temporarily store data in computer’s memory. price = 1.0 rating = 4.9 course_name = ‘Python for Beginners’ is_published = True In the above example, • price is an integer (a whole number without a decimal point) • rating is a float (a number with a decimal point) • course_name is a string (a sequence of characters) • is_published is a boolean. Boolean values can be True or False.