Flow of execution in Python

In Python, the flow of execution refers to the order in which statements and expressions are executed in a program. Understanding the flow of execution is crucial for writing effective and readable Python code. Here's a general overview:

1. Sequential Execution:- 

Python programs are executed sequentially, meaning that each statement is executed one after the other in the order they appear in the code.

2. Conditional Execution (if-else):-

Conditional statements, such as `if`, `elif`, and `else`, allow for the execution of different blocks of code based on certain conditions.

   if condition:

       # Code block executed 

       # if the condition is True

   elif another_condition:

       # Code block executed 

       # if the previous condition is False and 

       # this one is True

   else:

       # Code block executed 

       # if none of the above conditions are True

3. Looping (for and while):- Loops, like `for` and `while`, enable repeated execution of a block of code.

   for item in iterable:

       # Code block executed 

       # for each item in the iterable

   while condition:

       # Code block executed repeatedly

       # as long as the condition is True

4. Function Calls:- Functions can be defined and called to encapsulate and reuse blocks of code.

   def my_function():

       # Code block inside the function

   my_function()  

      # Calling the function

   

5. Exception Handling (try-except):- Exception handling allows you to handle errors gracefully.

   try:

       # Code block where an exception might occur.

   except SomeException:

       # Code block executed 

       # if the specified exception occurs

   else:

       # Code block executed 

       # if no exception occurs in the try block

   finally:

       # Code block always executed

       # regardless of whether an exception occurred.