How to extract text using regex in Python? [duplicate]

Question

I got a question how to extract some text using python regex. I would like to do what I want using regex only not using the module for HTML such like a bs4.

it's example text as follow .

tr_range =

<tr>
    <td class="table-basic-l">
        Resolution
    </td>
    <td class="table-basic-l">
        Horizontal Frequency (kHz)
    </td>
    <td class="table-basic-l">
        Vertical Frequency (Hz)
    </td>
</tr>

I'd like to extract all texts under td elements like as Resolution, Horizontal Frequency (kHz), Vertical Frequency (Hz) using regex only.

I am trying to exclude start of all td elements but it's not that so easy for me so far.

You just want the text or an arry with the <td> texts in it? — zypro
– zypro, Commented Nov 6, 2018 at 6:57
yeah i am able to solve this using HTML parser, but i want to know if it is possible to use regex — Cho
– Cho, Commented Nov 6, 2018 at 7:06

zypro · Accepted Answer · 2018-11-06 07:43:08Z

2

You can get the text with removing the html tags with regex like this (works only for tables (tr and td tags)):

import re

html='<tr>'\
    '<td class="table-basic-l">'\
    '    Resolution'\
    '</td>'\
    '<td class="table-basic-l">'\
    '    Horizontal Frequency (kHz)'\
    '</td>'\
    '<td class="table-basic-l">'\
    '    Vertical Frequency (Hz)'\
    '</td>'\
'</tr>'

print(re.sub("<[/]*t.*?>", "", html))

edited Nov 6, 2018 at 7:43

answered Nov 6, 2018 at 7:09

zypro

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7 Comments

Cho Over a year ago

you almost approched, but what if there is < or > in the text ?

Alex Reynolds Over a year ago

Then use Beautiful Soup.

zypro Over a year ago

@Cho shouldn't be a problem see here: regexr.com/42i67

zypro Over a year ago

@Cho if you have only <tr> and <td> elements, then my edit might help you?

Cho Over a year ago

yes of course it is! actually i was shocked seeing your code.

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