python variable scope for loop

in python, variable scope refers to the region of a program where a variable is accessible. understanding variable scope is crucial for writing clean and bug-free code. in this tutorial, we'll explore the concept of variable scope in the context of loops.
python has two main types of variable scope: global and local. a variable declared outside of any function or loop has a global scope, meaning it can be accessed from anywhere in the program. on the other hand, a variable declared inside a function or loop has a local scope and is only accessible within that function or loop.
in the case of loops, variables declared within the loop body have local scope and are only accessible inside the loop. however, variables declared outside the loop have global scope and can be accessed both inside and outside the loop.
let's look at some examples to illustrate these concepts.
in this example, loop_variable is declared inside the loop and has local scope. attempting to access it outside the loop will result in an error.
in this example, global_variable is declared outside the loop and has global scope. it can be accessed both inside and outside the loop.
in this example, local_variable is declared inside the loop, ensuring it has local scope. using it outside the loop will result in an error, preventing unintended global variables.
understanding variable scope in loops is crucial for writing robust and maintainable python code. by being mindful of where variables are declared, you can avoid common scope-related issues and write more reliable programs.
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