AttributeError: 'NoneType' object has no attribute 'strip'

删除None或者空字符串时出错

def is_not_empty(s):

    return len(s.strip()) > 0

print(list(filter(is_not_empty, ['hahah', 'jiayou', 'keyide', ' ', None, 'none'])))

解决办法：

# 删除None或者空字符串
def is_not_empty(s):

    return s and len(s.strip()) > 0

print(list(filter(is_not_empty, ['hahah', 'jiayou', 'keyide', ' ', None, 'none'])))

结果为：
[‘hahah’, ‘jiayou’, ‘keyide’, ‘none’]