Question

我可以成功刮取多列，但是，我无法获取相应球员的球队名称。到目前为止，这是我的代码：

from urllib.request import urlopen
from lxml.html import fromstring

import pandas as pd


url = "https://www.basketball-reference.com/leagues/NBA_2018_advanced.html"

content = str(urlopen(url).read())
comment = content.replace("-->","").replace("<!--","")
tree = fromstring(comment)


for idx, bball_row in enumerate(tree.xpath('//table[contains(@class,"stats_table")]//tr[contains(@class,"full_table")]')):
    names = bball_row.xpath('.//td[@data-stat="player"]/a')[0].text
    mp = bball_row.xpath('.//td[@data-stat="mp"]/text()')[0]
    per = bball_row.xpath('.//td[@data-stat="per"]/text()')[0]
    ws = bball_row.xpath('.//td[@data-stat="ws"]/text()')[0]
    bpm = bball_row.xpath('.//td[@data-stat="bpm"]/text()')[0]
    vorp = bball_row.xpath('.//td[@data-stat="vorp"]/text()')[0]
    print(names, per, ws, bpm, vorp)

一切到此为止。不过，我想添加团队名称的类别。我正在寻找缩写的团队名称（例如，俄克拉荷马城的OKC）。

以下代码遇到错误：

team = bball_row.xpath('.//td[@data-stat="team_id"]/a')[0].text
    print(team)

代码开始打印所有团队名称，然后出错。

这是错误：

team = bball_row.xpath('.//td[@data-stat="team_id"]/a')[0].text
IndexError: list index out of range

只是重申我在寻找什么... 我要尝试将缩写的球队名称添加到相应球员的旁边。

任何建议将不胜感激。我要在此先感谢社区的时间和努力！

Answer 1

您的脚本仅在找不到所需的值时才抛出该错误。您所能做的就是捕捉错误并以正确的方式进行处理。尝试以下脚本：

import requests
from lxml.html import fromstring

url = "https://www.basketball-reference.com/leagues/NBA_2018_advanced.html"

content = requests.get(url).text
comment = content.replace("-->","").replace("<!--","")
tree = fromstring(comment)

for row in tree.xpath('//table[contains(@class,"stats_table")]//tr[contains(@class,"full_table")]'):
    names = row.xpath('.//td[@data-stat="player"]/a')[0].text
    mp = row.xpath('.//td[@data-stat="mp"]/text()')[0]
    per = row.xpath('.//td[@data-stat="per"]/text()')[0]
    ws = row.xpath('.//td[@data-stat="ws"]/text()')[0]
    bpm = row.xpath('.//td[@data-stat="bpm"]/text()')[0]
    vorp = row.xpath('.//td[@data-stat="vorp"]/text()')[0]
    try:
        team = row.xpath('.//td[@data-stat="team_id"]/a')[0].text
    except IndexError: team = "N/A"
    print(names, per, ws, bpm, vorp, team)

您可能会得到的输出：

Alex Abrines 9.0 2.2 -2.2 -0.1 OKC
Quincy Acy 8.2 1.0 -2.2 -0.1 BRK
Steven Adams 20.6 9.7 3.3 3.3 OKC
Bam Adebayo 15.7 4.2 0.2 0.8 MIA

刮擦篮球运动员球队名称的最佳方法是什么？

1 个答案: