Python 美丽的汤抛出“索引器”`

我正在使用Python 2.7和Beauty Soup 3.2抓取一个网站。我对这两种语言都是新手，但从文档中我开始了一些学习

我正在阅读以下文档：

我现在所做和拥有的（失败的部分）：

tag的内容。awayteamsTd的内容如下所示：

[
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'Harkemase Boys', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-6077" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'RKC Waalwijk', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-427" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'Dutch KNVB Beker', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-6758" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'PSV', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-3" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'Ajax', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-2" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'Dutch KNVB Beker', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-6758" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'SC Heerenveen', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-14" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'Feyenoord', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-9" />],
    [<img class="flag" src="/gfx/flags/nl.gif" alt="nl" />, u'Dutch KNVB Beker', <img src="/gfx/favourite_off.gif" alt="fav icon" class="fav off" id="team-6758" />]
]

[
    [u'Away-team'], 
    [<img src="/gfx/favourite_off.gif" class="fav off" alt="fav icon" id="team-13" />, u'NEC', <img class="flag" src="/gfx/flags/nl.gif" alt="nl" />], 
    [<img src="/gfx/favourite_off.gif" class="fav off" alt="fav icon" id="team-11" />, u'Heracles', <img class="flag" src="/gfx/flags/nl.gif" alt="nl" />], 
    [<img src="/gfx/favourite_off.gif" class="fav off" alt="fav icon" id="team-428" />, u'Stormvogels Telstar', <img class="flag" src="/gfx/flags/nl.gif" alt="nl" />], 
    [<img src="/gfx/favourite_off.gif" class="fav off" alt="fav icon" id="team-419" />, u'FC Volendam', <img class="flag" src="/gfx/flags/nl.gif" alt="nl" />],
    [<img src="/gfx/favourite_off.gif" class="fav off" alt="fav icon" id="team-7" />, u'FC Twente', <img class="flag" src="/gfx/flags/nl.gif" alt="nl" />],
    [<img src="/gfx/favourite_off.gif" class="fav off" alt="fav icon" id="team-415" />, u'FC Dordrecht', <img class="flag" src="/gfx/flags/nl.gif" alt="nl" />]
]

[
[u‘客场球队’]，
[，u'NEC'，]，
[，u'Heracles'，]，
[，u'Stormvogels Telstar'，]，
[，u'FC'vonaldam'，]，
[，u'FC Twente'，]，
[，u'FC Dordrecht'，]
]

我试图解决但尚未完全解决的问题是：


代码
awayteams=[tag.contents[1]用于awayteamsTd中的标记]
出现错误：
索引器：列表索引超出范围
。这当然是正确的，因为正如您在awayteamsTd的
tag.contents
输出中所看到的，有第一个条目
[u'Away-team']
。这就是它失败的原因。但是我如何删除/跳过这个
在HomeTeam输出中，一切正常，但我想排除出现文本Dutch KNVB Beker的那些
问题在于“远离”单元格（列名）位于带有“远离”类的td内：

此外，如果您想从主队列表中排除
Dutch KNVB Beker
，请在列表理解表达式中添加一个条件：

hometeams = [tag.contents[1] for tag in hometeamsTd if tag.contents[1] != 'Dutch KNVB Beker']

问题是“远离”单元格（列名）位于带有“远离”类的td内：

此外，如果您想从主队列表中排除
Dutch KNVB Beker
，请在列表理解表达式中添加一个条件：

hometeams = [tag.contents[1] for tag in hometeamsTd if tag.contents[1] != 'Dutch KNVB Beker']

<thead class="title">
    ...
    <tr class="sub">
      ...  
      <td>Home-team</td>
      <td></td>
      <td class="away">Away-team</td>
      <td class="broadcast">Broadcast</td>
    </tr>
  </thead>
</thead>

awayteamsTd = soup.findAll('td', { "class" : "away" })[1:]

hometeams = [tag.contents[1] for tag in hometeamsTd if tag.contents[1] != 'Dutch KNVB Beker']