import math as mth

def main():

    
    try:
        number=float(input("Please enter a positive number: "))
        print("Taking the square root of the number entered")
        sqRoot=mth.sqrt(number)
        print("The square root of {0} is {1}.".format(number,sqRoot))
    except ValueError as excObj:
        if str(excObj)=="math domain error":
            print("\nYou did not enter a positive number")
            print("You entered a negative number!")
        else:
            print("\nLooks like you entered a character, not a positive number as needed")
    except:
        print("Something went wrong!")

    print("\nOutside of the try-except structure.")

##def main():
##    print("Before TRY-EXCEPT")
##    try:
##        number=int(input("Please enter an integer: "))
##        print("\nYou entered",number)
##    except ValueError:
##        print("\nYou did not enter an integer!")
##    except:
##        print("Something is wrong.")
##    print("\nOutside the try-except block")
    

main()