8000 gh-130283: update deprecated links and examples in `urllib.request` docs by Mr-Sunglasses · Pull Request #130284 · python/cpython · GitHub
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gh-130283: update deprecated links and examples in urllib.request docs #130284

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Merged
merged 7 commits into from
Mar 23, 2025
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gh-130283: update deprecated links and examples in urllib.request docs #130284

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061cba8
gh-130283: update deprecated links and examples in `urllib.request` docs
Mr-Sunglasses Feb 18, 2025
48ce606
Merge branch 'main' into fix/deprecated-examples-urllib.request
Mr-Sunglasses Mar 9, 2025
2b066f7
docs: fix the ". ::" sentences and merge them into "::" directly
Mr-Sunglasses Mar 9, 2025
29c53e7
docs: Add the reference of HTML spec document and W3C document
Mr-Sunglasses Mar 9, 2025
6eee248
Merge branch 'main' into fix/deprecated-examples-urllib.request
picnixz Mar 23, 2025
0c4d55e
Apply suggestions from code review
picnixz Mar 23, 2025
6c60d90
Update Doc/library/urllib.request.rst
picnixz Mar 23, 2025
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gh-130283: update deprecated links and examples in urllib.request docs
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@Mr-Sunglasses
Mr-Sunglasses committed Feb 18, 2025
commit 061cba8857b5bc5100c19707ccea089afa474b0c
20 changes: 9 additions & 11 deletions Doc/library/urllib.request.rst
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Expand Up @@ -1219,20 +1219,16 @@ it. ::
>>> with urllib.request.urlopen('http://www.python.org/') as f:
... print(f.read(300))
...
b'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\n\n\n<html
xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">\n\n<head>\n
<meta http-equiv="content-type" content="text/html; charset=utf-8" />\n
<title>Python Programming '
b'<!doctype html>\n<!--[if lt IE 7]> <html class="no-js ie6 lt-ie7 lt-ie8 lt-ie9"> <![endif]-->\n<!--[if IE 7]> <html class="no-js ie7 lt-ie8 lt-ie9"> <![endif]-->\n<!--[if IE 8]> <html class="no-js ie8 lt-ie9">

Note that urlopen returns a bytes object. This is because there is no way
for urlopen to automatically determine the encoding of the byte stream
it receives from the HTTP server. In general, a program will decode
the returned bytes object to string once it determines or guesses
the appropriate encoding.

The following W3C document, https://www.w3.org/International/O-charset\ , lists
the various ways in which an (X)HTML or an XML document could have specified its
The following W3C document, https://www.w3.org/International/questions/qa-html-encoding-declarations\ , lists
the various ways in which an HTML document could have specified its
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XML is still covered by the document but they explicitly don't say "XHTML".

encoding information.

As the python.org website uses *utf-8* encoding as specified in its meta tag, we
Expand All @@ -1241,17 +1237,19 @@ will use the same for decoding the bytes object. ::
>>> with urllib.request.urlopen('http://www.python.org/') as f:
... print(f.read(100).decode('utf-8'))
...
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtm
<!doctype html>
<!--[if lt IE 7]> <html class="no-js ie6 lt-ie7 lt-ie8 lt-ie9"> <![endif]-->
<!-

It is also possible to achieve the same result without using the
:term:`context manager` approach. ::

>>> import urllib.request
>>> f = urllib.request.urlopen('http://www.python.org/')
>>> print(f.read(100).decode('utf-8'))
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtm
<!doctype html>
<!--[if lt IE 7]> <html class="no-js ie6 lt-ie7 lt-ie8 lt-ie9"> <![endif]-->
<!--

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
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