import math as mth

def main():

    #number = float(input("Please enter a number: "))
    try:
        number = float(input("Please enter a number: "))
        print("Now in the TRY block of code")
        squareRoot = mth.sqrt(number)
        print("\nThe square root of",number,"is",squareRoot)
    except ValueError as excObj:
        error=str(excObj)
        if error == "math domain error":
            print("the square root of a negative number is imapginary.")
        elif error == #########:
            
    except TypeError:
        print("You need to fix the input line.")
    print("\nNOW out he the try/except code grouping.")