我正在读取一个类似于以下格式的 .html 文件:
html = '''
<tr>
<td class="SmallFormText" colspan="3">hours per response:</td><td class="SmallFormTextR">23.8</td>
</tr>
<hr>
<table width="100%" border="0" cellspacing="0" cellpadding="4" summary="Form 13F-NT Header Information">
<tbody>
<tr>
<td class="FormTextC">COLUMN 1</td><td class="FormTextC">COLUMN 2</td><td class="FormTextC">COLUMN 3</td><td class="FormTextR">COLUMN 4</td><td class="FormTextC" colspan="3">COLUMN 5</td><td class="FormTextC">COLUMN 6</td><td class="FormTextR">COLUMN 7</td><td class="FormTextC" colspan="3">COLUMN 8</td>
</tr>
<tr>
<td class="FormText"></td><td class="FormText"></td><td class="FormText"></td><td class="FormTextR">VALUE</td><td class="FormTextR">SHRS OR</td><td class="FormText">SH/</td><td class="FormText">PUT/</td><td class="FormText">INVESTMENT</td><td class="FormTextR">OTHER</td><td class="FormTextC" colspan="3">VOTING AUTHORITY</td>
</tr>
<tr>
<td class="FormText">NAME OF ISSUER</td><td class="FormText">TITLE OF CLASS</td><td class="FormText">CUSIP</td><td class="FormTextR">(x$1000)</td><td class="FormTextR">PRN AMT</td><td class="FormText">PRN</td><td class="FormText">CALL</td><td class="FormText">DISCRETION</td><td class="FormTextR">MANAGER</td><td class="FormTextR">SOLE</td><td class="FormTextR">SHARED</td><td class="FormTextR">NONE</td>
</tr>
<tr>
<td class="FormData">1ST SOURCE CORP</td><td class="FormData">COM</td><td class="FormData">336901103</td><td class="FormDataR">8</td><td class="FormDataR">335</td><td class="FormData">SH</td><td> </td><td class="FormData">SOLE</td><td class="FormData">7</td><td class="FormDataR">335</td><td class="FormDataR">0</td><td class="FormDataR">0</td>
</tr>
<tr>
<td class="FormData">1ST UNITED BANCORP INC FLA</td><td class="FormData">COM</td><td class="FormData">33740N105</td><td class="FormDataR">7</td><td class="FormDataR">989</td><td class="FormData">SH</td><td> </td><td class="FormData">SOLE</td><td class="FormData">7</td><td class="FormDataR">989</td><td class="FormDataR">0</td><td class="FormDataR">0</td>
</tr> '''
在此代码中,我尝试提取
这是我的代码(请运行上面的代码以获取html数据):
from bs4 import BeautifulSoup
soup = BeautifulSoup(html, 'lxml')
rows = soup.find_all('tr')[11:]
positions = []
dic = {}
position = rows.find_all('td')
dic["NAME_OF_ISSUER"] = position[0].text
dic["CUSIP"] = position[2].text
dic["VALUE"] = int(position[3].text.replace(',', ''))*1000
dic["SHARES"] = int(position[4].text.replace(',', ''))
positions.append(dic)
df = pd.DataFrame(positions)
在定义位置后,我立即收到“AttributeError”,表明列表对象没有属性“find_all”。
这到底是什么意思?另外,我需要如何转换 html 数据以避免这个问题?
编辑部分:
这是完整的堆栈跟踪:
position = rows.find_all('td')
Traceback (most recent call last):
File "<ipython-input-8-37353b5ab2ef>", line 1, in <module>
position = rows.find_all('td')
AttributeError: 'list' object has no attribute 'find_all'
最佳答案
soup.find_all
返回元素的 python list
。您需要做的就是迭代列表并从这些元素中获取数据。
from bs4 import BeautifulSoup
soup = BeautifulSoup(html, 'lxml')
rows = soup.find_all('tr')
# scan for header row and trim list
for index, row in enumerate(rows):
cells = row.find_all('td')
if cells and "NAME OF ISSUER" in cells[0].text.upper():
del rows[:index+1]
break
# convert remaining html rows to dict to create dataframe
positions = []
for position in rows:
dic = {}
cells = position.find_all('td')
dic["NAME_OF_ISSUER"] = cells[0].text
dic["CUSIP"] = cells[2].text
dic["VALUE"] = int(cells[3].text.replace(',', ''))*1000
dic["SHARES"] = int(celss[4].text.replace(',', ''))
positions.append(dic)
df = pd.DataFrame(positions)
关于python - 使用beautifulsoup时出现属性错误如何解决?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49809407/