#9 Python Tutorial for Beginners | More on Variables in Python

In this lecture we will learn:
– Variables in Python
– Memory area of variables in Python
– How to get the address of a variable?
– Garbage collection
– Data types in Python

#1
– Every variable has its address.
– In Python, the id() function is used to get the address of a variable.
– We can also assign the value of one variable to any other variable.
– In python, whenever you create multiple variables and if they have the same data then they will point towards the same box or same memory area.
– Everything is an object in Python.
– Variables are also known as tags as we tag the value with a variable.
– If the same variable store multiple values, then that variable will point towards the new memory area where the new value is get stored.

#2
– If there is any data present in the memory that is not referenced by any variable, then that will be removed from the memory by the Garbage collector.

#3
– The value of variables can be changed but the value of the constant remains the same.
– In python, we represent constants through capital letters.
– type() function is used to get the data type of value of a variable.
– Besides in-built data types, we can also create our own types.

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