FileIO_ExceptionAppend.py

def main():
    try:
        fobj=open("Hello.txt","a")
        print("File gets succesfully opened")

        fobj.write("Python Automation")

        fobj.close()

    except FileNotFoundError:
        print("Unable to open file as there is no such file")
    
    finally:
        print("End of application")

if __name__ =="__main__":
    main()