Variables

Variables in Python refers to an object — an item or element that is stored in the memory.

They are containers used for storing data values . The values can be string, numeric or any combination of alphanumeric characters.

In Python we can use an assignment statement to create new variables and assign specific values to them. 

• Variable declaration is implicit in Python, which means variables are automatically declared and defined when they are assigned a value the first time. 
• Variables must always be assigned values before they are used in expressions as otherwise it will lead to an error in the program. 
• Wherever a variable name occurs in an expression, the interpreter replaces it with the value of that particular variable.

Examples:

• gender = 'M' 
• message = "Keep Smiling" 
• price = 987.9