docs: fix deprecated or broken examples in urllib.request documentation.

[Mr-Sunglasses]

Documentation

While working on the issue #130132 , I encountered with some examples and I can see the W3C document is outdated with some examples of urllib.request.urlopen() in Example of urllib.request

These are following things I find which is outdated.

• https://www.w3.org/International/O-charset
• output content of urllib.request.urlopen('http://www.python.org/')

Also there are other which also need to be fixed:

ref. https://docs.python.org/3/library/urllib.request.html#examples

There are many example in urllib.request documentation that need to be updated as they no longer works as expected.

In the following example, we are sending a data-stream to the stdin of a CGI and reading the data it returns to us. Note that this example will only work when the Python installation supports SSL.

Use of Basic HTTP Authentication:

Linked PRs

• gh-130283: update deprecated links and examples in urllib.request docs #130284
• [3.13] gh-130283: update deprecated links and examples in urllib.request docs (GH-130284) #131626
• [3.12] gh-130283: update deprecated links and examples in urllib.request docs (GH-130284) #131627

[Mr-Sunglasses]

I need small suggestion here, as https://www.w3.org/International/O-charset is deprecated by W3C, and it added these two suggestions in the page

You may want to try, instead, one of the following pages:
Handling character encodings in HTML and CSS (tutorial)
Declaring character encodings in HTML

I've added https://www.w3.org/International/questions/qa-html-encoding-declarations this one but we can add something other instead of this like

• https://www.w3.org/International/questions/qa-what-is-encoding
• https://www.w3.org/International/getting-started/characters

I would love to know the thought's of the fellow dev's