判断一个文本txt里面的人名回文字符串

f=open("D:/names.txt")
def is_panlindrom_rec(name):#方法一用递归的方法
    if len(name)<=1:
        return True
    else:
        if name[0]!=name[-1]:
            return False
        else:
            return is_panlindrom_rec(name[1:-1])
def is_panlindrom(name):#方法二
    low=0
    high = len(name) - 1
    while low <high:
        if name [low] !=name[high]:
            return False
        low +=1
        high-=1
    return True
for line in f:
    line = line.strip()
    if is_panlindrom_rec(line):
        print line
f.close()