如何在抓取网站后从字符串中删除转义码

Question

我尝试在SimpleArn中使用python学习数据科学。在matplotlib学习部分，他们从here进行网页抓取

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt

%matplotlib inline

from urllib.request import urlopen
from bs4 import BeautifulSoup
import re

url="https://www.hubertiming.com/results/2018MLK" #OPEN LINK
html=urlopen(URL)
soup=BeautifulSoup(html,"lxml")
title = soup.title
print (title)
print(title.text)
links = soup.find_all('a',href=True)
for link in links:
    print (link['href'])
data =[]
allrows=soup.find_all("tr")
for row in allrows:
    row_list = row.find_all("td")
    dataRow=[]
    data_converted = []
    for cell in row_list:
        dataRow.append(cell.text)
    data.append(dataRow)
data=data[4:]
print(data[-2:])

这就是结果

[['190', '2087', '\r\n\r\n                    LEESHA POSEY\r\n\r\n                ', 'F', '43', 'PORTLAND', 'OR', '1:33:53', '30:17', '\r\n\r\n                    112 of 113\r\n\r\n                ', 'F 40-54', '\r\n\r\n                    36 of 37\r\n\r\n                ', '0:00', '1:33:53'], ['191', '1216', '\r\n\r\n                    ZULMA OCHOA\r\n\r\n                ', 'F', '40', 'GRESHAM', 'OR', '1:43:27', '33:22', '\r\n\r\n                    113 of 113\r\n\r\n                ', 'F 40-54', '\r\n\r\n                    37 of 37\r\n\r\n                ', '0:00', '1:43:27']]

我怎样才能摆脱\r\n\r\n？？我已经使用了"replace"函数，它说"'list' object has no attribute 'replace'"，而且我也不能使用strip

Answer 1

你有一个2D列表

我们在利用什么：

1. 列表理解
2. strip()方法
3. 就这样：）

使用以下代码：

text = [['190', '2087', '\r\n\r\n LEESHA POSEY\r\n\r\n ', 'F', '43', 'PORTLAND', 'OR', '1:33:53', '30:17', '\r\n\r\n 112 of 113\r\n\r\n ', 'F 40-54', '\r\n\r\n 36 of 37\r\n\r\n ', '0:00', '1:33:53'], ['191', '1216', '\r\n\r\n ZULMA OCHOA\r\n\r\n ', 'F', '40', 'GRESHAM', 'OR', '1:43:27', '33:22', '\r\n\r\n 113 of 113\r\n\r\n ', 'F 40-54', '\r\n\r\n 37 of 37\r\n\r\n ', '0:00', '1:43:27']]
result = [[j.strip() for j in i] for i in text]
print(result)

输出：

[['190', '2087', 'LEESHA POSEY', 'F', '43', 'PORTLAND', 'OR', '1:33:53', '30:17', '112 of 113', 'F 40-54', '36 of 37', '0:00', '1:33:53'], ['191', '1216', 'ZULMA OCHOA', 'F', '40', 'GRESHAM', 'OR', '1:43:27', '33:22', '113 of 113', 'F 40-54', '37 of 37', '0:00', '1:43:27']]