Python Pandas read_html导致类型错误

我使用bs4解析html页面并提取一个表，下面给出的示例表，我试图将其加载到pandas中，但是当我调用

pddataframe=pd.read_html（LOTable，skiprows=2，flavor=['bs4']）

时，我得到了下面列出的错误，但我可以打印bs4美化的表

有什么建议我可以解决这个问题，而不需要得到每一个td和阅读1 1

样本表

学习成果
成功完成本模块后，学员将能够：
LO1
了解财务会计信息作为决策过程输入的重要作用。
LO2
了解财务报表编制所依据的基本会计概念、原则和惯例。
LO3
了解记录和分类交易或事件相关信息的各种格式。
LO4
运用会计概念、惯例和技术知识，如复式记账，将记录信息过账到名义分类账中的T账户。
LO5
根据试算表，以规定格式编制并呈报独家贸易商的财务报表，并附上附注和其他信息。

错误

-------------------------------------------------------------在（）中键入错误回溯（最近一次调用）
10#将表格读入熊猫
11如果首先：
--->12 pddataframe=pd.read_html（LOTable，skiprows=2，flavor=['bs4']）
13第一个=错误
14数据帧
C:\Program Files\Anaconda3\envs\learningoutcouts\lib\site packages\pandas\io\html.py（io、匹配、风格、标题、索引、skiprows、属性、解析日期、元组、千、编码）
872 _验证_标题_参数（标题）
873返回解析（风格、io、匹配、标题、索引列、skiprows、，
-->874解析（日期、元组、千、属性、编码）
C:\Program Files\Anaconda3\envs\learningoutcouts\lib\site packages\pandas\io\html.py in\u parse（风格、io、匹配、标题、索引、skiprows、解析日期、元组、千、属性、编码）
734中断
735其他：
-->736带回溯的raise_（保留）
737
738 ret=[]
C:\Program Files\Anaconda3\envs\learningoutcouts\lib\site packages\pandas\compat\\uuuuuuuu init\uuuuuuuuuuuuuu.py在带回溯的raise\u中（exc，回溯）
331如果回溯==省略号：
332 u，u，traceback=sys.exc_info（）
-->333带回溯的提升exc（回溯）
334其他：
335#此版本的raise在Python3中是一个语法错误
**TypeError:“非类型”对象不可调用**

熊猫可以猜到

HTML = '''\
<table cellpadding="5" cellspacing="0" class="borders" width="100%">
    <tr>
     <th colspan="2">
      Learning Outcomes
     </th>


... omitting most of what you had here


      Prepare and present the financial statements of a Sole Trader  in prescribed format from a Trial Balance  accompanies by notes with additional information.
     </td>
    </tr>
   </table>'''

from io import StringIO
import pandas as pd

df = pd.read_html(StringIO(HTML))
print (df)

---

这个确切的代码对我有用

htm = """<table cellpadding="5" cellspacing="0" class="borders" width="100%">
    <tr>
     <th colspan="2">
      Learning Outcomes
     </th>
    </tr>
    <tr>
     <td class="info" colspan="2">
      On successful completion of this module the learner will be able to:
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO1
     </td>
     <td>
      Demonstrate an awareness of the important role of Financial Accounting information as an input into the decision making process.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO2
     </td>
     <td>
      Display an understanding of the fundamental accounting concepts, principles and conventions that underpin the preparation of Financial statements.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO3
     </td>
     <td>
      Understand the various formats in which  information in relation to transactions or events is recorded and classified.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO4
     </td>
     <td>
      Apply a knowledge of accounting concepts,conventions and techniques such as double entry to the  posting of  recorded information to the T accounts in the Nominal Ledger.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO5
     </td>
     <td>
      Prepare and present the financial statements of a Sole Trader  in prescribed format from a Trial Balance  accompanies by notes with additional information.
     </td>
    </tr>
   </table> 
"""

pd.read_html(htm, skiprows=2, flavor='bs4')[0]

htm=”“”
学习成果
成功完成本模块后，学员将能够：
LO1
了解财务会计信息作为决策过程输入的重要作用。
LO2
了解财务报表编制所依据的基本会计概念、原则和惯例。
LO3
了解记录和分类交易或事件相关信息的各种格式。
LO4
运用会计概念、惯例和技术知识，如复式记账，将记录信息过账到名义分类账中的T账户。
LO5
根据试算表，以规定格式编制并呈报独家贸易商的财务报表，并附上附注和其他信息。
"""
pd.read_html（htm，skiprows=2，flavor='bs4'）[0]

---

感谢所有建议答案和评论中的提示，我的新手错误是，在使用bs4提取表后，我将其放入变量中。

---

当我需要运行

pd.read\u html（LOTable，skiprows=2，flavor='bs4'）

时，我正在运行

pd.read\u html（LOTable.prettify（），skiprows=2，flavor='bs4'）

flavor:str或None，字符串容器

。在没有flavor='bs4'pd的情况下尝试了它。read\u html（LOTable，skiprows=2）也出现了同样的错误。在尝试阅读之前，我可以调用print（LOTable.prettify（）），并输出表格html，然后错误@AKS我不理解您的评论。请您再解释一下，好吗？问题在于您的示例或真实数据？谢谢告诉我们。我怀疑。我阅读了最近的panda文档后发现，没有必要将

flavor='bs4'

放入，因为panda将默认为lxml IIRC。这就是我建议它自己进行解析的原因，或者至少它处理解析而不需要用户这样做。

HTML = '''\
<table cellpadding="5" cellspacing="0" class="borders" width="100%">
    <tr>
     <th colspan="2">
      Learning Outcomes
     </th>


... omitting most of what you had here


      Prepare and present the financial statements of a Sole Trader  in prescribed format from a Trial Balance  accompanies by notes with additional information.
     </td>
    </tr>
   </table>'''

from io import StringIO
import pandas as pd

df = pd.read_html(StringIO(HTML))
print (df)

[                                                   0  \
0                                  Learning Outcomes   
1  On successful completion of this module the le...   
2                                                LO1   
3                                                LO2   
4                                                LO3   
5                                                LO4   
6                                                LO5   

                                                   1  
0                                                NaN  
1                                                NaN  
2  Demonstrate an awareness of the important role...  
3  Display an understanding of the fundamental ac...  
4  Understand the various formats in which inform...  
5  Apply a knowledge of accounting concepts,conve...  
6  Prepare and present the financial statements o...  ]

htm = """<table cellpadding="5" cellspacing="0" class="borders" width="100%">
    <tr>
     <th colspan="2">
      Learning Outcomes
     </th>
    </tr>
    <tr>
     <td class="info" colspan="2">
      On successful completion of this module the learner will be able to:
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO1
     </td>
     <td>
      Demonstrate an awareness of the important role of Financial Accounting information as an input into the decision making process.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO2
     </td>
     <td>
      Display an understanding of the fundamental accounting concepts, principles and conventions that underpin the preparation of Financial statements.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO3
     </td>
     <td>
      Understand the various formats in which  information in relation to transactions or events is recorded and classified.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO4
     </td>
     <td>
      Apply a knowledge of accounting concepts,conventions and techniques such as double entry to the  posting of  recorded information to the T accounts in the Nominal Ledger.
     </td>
    </tr>
    <tr>
     <td style="width:10%;">
      LO5
     </td>
     <td>
      Prepare and present the financial statements of a Sole Trader  in prescribed format from a Trial Balance  accompanies by notes with additional information.
     </td>
    </tr>
   </table> 
"""

pd.read_html(htm, skiprows=2, flavor='bs4')[0]