Given a number, return a string with dash``` '-' ```marks before and after each odd integer,  but do not begin or end the string with a dash mark.
Ex:
import re
def dashatize(num):
    try:
        return ''.join(['-'+i+'-' if int(i)%2 else i for i in str(abs(num))]).replace('--','-').strip('-')
    except:
        return 'None'
import re
def dashatize(num):
    try:
        return ''.join(['-'+i+'-' if int(i)%2 else i for i in str(abs(num))]).replace('--','-').strip('-')
    except:
        return 'None'