AttributeError: 'list' object has no attribute 'split' cannot figure out error

Question

问题是不断要求一个人说出他们最喜欢的网站，并在他们输入完成后停止。我们要提取“www”。和“.com”并将该部分附加到列表中，最后打印列表。我不知道我做错了什么。

myweb=[]
while True:
    mywebsite=input("what is your favorite website?")
    if mywebsite=="done":
        print(myweb)
        break
    else:
        myweb.append(mywebsite)
        continue
mywebsite=mywebsite.split('www.')
mywebsite=mywebsite.split('.com')
print(mywebsite)

Answer 1

根据你的问题，我做了这个功能

myweb=[]
while True:
    mywebsite=input("what is your favorite website?")
    if mywebsite=="done":
        print(myweb)
        break
    else:
        myweb.append(mywebsite)
        continue

# allocating enough space
mywebsite = [0]*len(myweb)

# extract it
for i in range(len(myweb)):
    # split based on www.domain.com
    mywebsite[i] = myweb[i].split('.')[1]

print(mywebsite)

Answer 2

对列表中的每个项目使用正则表达式

>>> import re
>>> website = 'www.amazon.com'
>>> website = re.search('www\.(.*)\.com',website).group(1)
>>> website
'amazon'

Answer 3

如果所有输入的模式都是www.SOME_WEB_SITES.com，那么你可以使用

websites = [ '.'.join(x.split('.')[1:-1]) for x in a]

也考虑子域的情况，例如：

www.a.com --> a

www.a.b.com --> a.b

x.split('.')[1:-1] # we will get an array ["a","b"]
'.'.join(....) # we need to join them by .

Answer 4

您使用 python 字符串 .strip() 函数来执行此操作。

myweb=[]
while True:
    mywebsite=input("what is your favorite website?")
    if mywebsite=="done":
        for x in myweb:
            print(x.strip("www." + ".com")) #Strips www. and .com from the string.
        break
    else:
        myweb.append(mywebsite)

Answer 5

这可以使用正则表达式轻松完成。但是看起来您是 python 的新手。因此，以下更正后的代码可能会对您有所帮助。

myweb_name=[]
while True:
    mywebsite=input("what is your favorite website?")
    if mywebsite=="done":
        break
    else:
        myweb_name.append(mywebsite.split('www.')[1] # remove the www part
                        .split('.com')[0]) # remove the .com part
        continue
print(myweb_name)

AttributeError: 'list' object has no attribute 'split' cannot figure out error

AttributeError: 'list' object has no attribute 'split' cannot figure out error

python

attributes

split

append

jupyter