Python AttributeError: 'builtin_function_or_method' 对象没有属性 'replace'

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时间:2020-08-19 05:02:45  来源:igfitidea点击:

AttributeError: 'builtin_function_or_method' object has no attribute 'replace'

pythonstringattributeerror

提问by 1089

When I try to use this in my program, it says that there's an attribute error

当我尝试在我的程序中使用它时,它说有一个属性错误

'builtin_function_or_method' object has no attribute 'replace'

but I don't understand why.

但我不明白为什么。

def verify_anagrams(first, second):
    first=first.lower
    second=second.lower
    first=first.replace(' ','')
    second=second.replace(' ','')
    a='abcdefghijklmnopqrstuvwxyz'
    b=len(first)
    e=0
    for i in a:
        c=first.count(i)
        d=second.count(i)
        if c==d:
            e+=1
    return b==e

回答by 1089

You need to callthe str.lowermethod by placing ()after it:

您需要通过在它后面放置来调用str.lower方法()

first=first.lower()
second=second.lower()

Otherwise, firstand secondwill be assigned to the function object itself:

否则,first并且second将被分配到的函数对象本身:

>>> first = "ABCDE"
>>> first = first.lower
>>> first
<built-in method lower of str object at 0x01C765A0>
>>>
>>> first = "ABCDE"
>>> first = first.lower()
>>> first
'abcde'
>>>