Good way to ignore case when searching elements?

Winfried · (This post was last modified: Apr-25-2024, 10:05 AM by Winfried.)

Hello,

In the files I need to work with, I notice that the values in the following meta line can be either lower-case or capitalized.

What would be the right way to convert them to lower-case regardless so that search doesn't miss the others?

#could be "Content-Type" or "content-type"
meta = soup.head.find("meta",  {"http-equiv":"content-type"})
if meta is None:
  print("here1")
else:
  print("here2")

Thank you.

menator01 · (This post was last modified: Apr-25-2024, 12:39 PM by menator01.)

You might could try something like this

from bs4 import BeautifulSoup

html_doc = """ 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta http-equiv="content-type"  charset="UTF-8">
    <meta http-equiv="Content-Type"  charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
</html>
 """

soup = BeautifulSoup(html_doc, 'lxml')
tags = ['content-type', 'Content-Type']
for tag in tags:
    meta = soup.head.find('meta', {'http-equiv': tag})
    print(meta)

output

Output:<meta charset="utf-8" http-equiv="content-type"/>
<meta charset="utf-8" http-equiv="Content-Type"/>

A way without looping

from bs4 import BeautifulSoup

html_doc = """ 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta http-equiv="content-type"  charset="UTF-8">
    <meta http-equiv="Content-Type"  charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
</html>
 """

soup = BeautifulSoup(html_doc, 'lxml')

meta = soup.select('meta[http-equiv="content-type" i]')

print(meta)

output

Output:
[<meta charset="utf-8" http-equiv="content-type"/>, <meta charset="utf-8" http-equiv="Content-Type"/>]

Possibly Related Threads…
Thread		Author	Replies	Views	Last Post
	ValueError: Length mismatch: Expected axis has 8 elements, new values have 1 elements	ilknurg	1	5,258	May-17-2022, 11:38 AM Last Post: Larz60+
	Ignore WakeWord after it's said	Extra	2	1,241	Apr-01-2022, 12:32 AM Last Post: Extra
	How to ignore "Retrying (Retry(total=2, connect=2, read=5, redirect=5, status=None))"	const	3	2,797	Mar-26-2022, 08:55 AM Last Post: ndc85430
	Switch case or match case?	Frankduc	9	4,665	Jan-20-2022, 01:56 PM Last Post: Frankduc
	Sorting Elements via parameters pointing to those elements.	rpalmer	3	2,652	Feb-10-2021, 04:53 PM Last Post: rpalmer
	Ignore first few letters of a line when reading file.	ShakeyPakey	16	6,601	May-30-2020, 02:17 PM Last Post: BitPythoner
	How to ignore empty columns from DB?	Winfried	1	2,325	May-15-2020, 08:35 PM Last Post: menator01
	How to make the script ignore down devices.	wagnergt12	4	3,288	Apr-20-2020, 11:45 PM Last Post: wagnergt12
	Regex ignore	JohnnyCoffee	1	2,637	Mar-16-2020, 12:16 PM Last Post: scidam
	Ignore Folder	Evil_Patrick	3	3,782	Oct-29-2019, 07:44 AM Last Post: Gribouillis

Good way to ignore case when searching elements?

User Panel Messages

Announcements