What happens if the file is not found in the following python code?a=Falsewhile not a:    try:        f_n=input("Enter file name ")        i_f=open(f_n,"r")    except:        print("Input file not found")

If the file is not found in the given Python code, the following steps will occur:

1. The user is prompted to enter a file name.
2. The program attempts to open the file in read mode.
3. If the file does not exist or cannot be found, an exception is raised.
4. The exception is caught in the except block.
5. The message "Input file not found" is printed to the console.
6. Since the file was not found and opened successfully, the variable a remains False and the loop continues, prompting the user to enter a file name again.

This process will continue until a valid file name is entered and the file is successfully opened, at which point a would presumably be set to True (not shown in the provided code), breaking the loop.