'Returns True if the ws_name is valid, else if it\'s not'

def isWorkspaceNameValid(self, ws_name):

    letters_or_numbers = '^[a-z][a-z0-9\\_\\$()\\+\\-\\/]*$'
    regex_name = re.match(letters_or_numbers, ws_name)
    if (regex_name and (regex_name.string not in CONST_BLACKDBS)):
        return True
    else:
        return False
