如何从html标签之间提取文本？

Question

I have a some html elements from which I want to extract the text. So the html is like

<pre>
<span class="ansi-red-fg">ZeroDivisionError</span>Traceback (most recent call last)
<span class="ansi-green-fg">&lt;ipython-input-2-0f9f90da76dc&gt;</span> in <span class="ansi-cyan-fg">&lt;module&gt;</span><span class="ansi-blue-fg">()</span>

</pre>

where I want to extract the text as

ZeroDivisionErrorTraceback (most recent call last)
<ipython-input-2-0f9f90da76dc> in<module>()

I found an answer to that issue here , but it does not work for me. Complete example code

from bs4 import BeautifulSoup as BSHTML

bs = BSHTML("""<pre>
<span class="ansi-red-fg">ZeroDivisionError</span>Traceback (most recent call last)
<span class="ansi-green-fg">&lt;ipython-input-2-0f9f90da76dc&gt;</span> in <span class="ansi-cyan-fg">&lt;module&gt;</span><span class="ansi-blue-fg">()</span>
</pre>""")
print bs.font.contents[0].strip()

where I get the following error:

Traceback (most recent call last):
  File "invest.py", line 13, in <module>
    print bs.font.contents[0].strip()
AttributeError: 'NoneType' object has no attribute 'contents'

Anything I am missing? Version of beautifulsoap : 4.6.0

Answer 1

Do you want all the text content of that pre block?

print bs.pre.text

Returns:

ZeroDivisionErrorTraceback (most recent call last)
<ipython-input-2-0f9f90da76dc> in <module>()

Answer 2

The .font in your code sample refers to the HTML tag <font> . Since you are instead looking to all the text from your document, you can use something like this:

contents = bs.find_all(text=True)
for c in contents:
    print(c)  # replace this with whatever you're trying to do

Output:

ZeroDivisionError
Traceback (most recent call last)

<ipython-input-2-0f9f90da76dc>
 in
<module>
()

Currently bs.font is None because you are parsing a document that doesn't contain any <font> tags.

If you just want the contents as one long string, you can get that by just using bs.text

'\nZeroDivisionErrorTraceback (most recent call last)\n<ipython-input-2-0f9f90da76dc> in <module>()\n'