@property
def double_blank_lines(self):
    prev = True
    for row in self.raw_doc.split('\n'):
        if ((not prev) and (not row.strip())):
            return True
        prev = row.strip()
    return False
@property
def double_blank_lines(self):
    prev = True
    for row in self.raw_doc.split('\n'):
        if ((not prev) and (not row.strip())):
            return True
        prev = row.strip()
    return False