Variable value

A variable contains only one value. If you write another value to it, then the old one is "erased".
In Python, when a variable changes its value, a new memory area is allocated, and the old memory area is no longer available and will be freed by the so-called garbage collector - a special program that manages memory 1) using the assignment operator. eg

name = "Petr"

Thus, the variable name is associated with the value Petr. The assignment operator works from right to left: it takes the value that is to the right of the "=" sign and writes it to the variable to the left of the "=" sign

2) âenter the desired value from the keyboard using the built-in function (command) input, for example

name = input()

In the latter case, when the command is executed, the program will wait for the user to enter some value (which specific one we cannot know, depends on the user's desire) and after pressing the Enter key, the entered character string is written into the name variable

An operator is a programming language command

To display the value of a variable on the screen, in the print output operator, we simply specify the variable name without quotes, for example, a program

name = "Petr"
print(name)  
# will display Petr

REMEMBER:
1 You can set the value of a variable using the input operator (name = input ()) or the assignment operator (name = "petr")
2 You can display the value of a variable simply by specifying the variable name without quotation marks in the output statement (print(name))