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Jul 15, 2023
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faq/library: remove outdated sections #105996

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3e51100
remove link to phaseit.net
deronnax Jun 22, 2023
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remove "How can I mimic CGI form submission (METHOD=POST)?"
deronnax Jun 22, 2023
82d64dd
remove "How do I access the serial (RS232) port?"
deronnax Jun 22, 2023
6d534b9
Revert "remove "How do I access the serial (RS232) port?""
deronnax Jul 15, 2023
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35 changes: 0 additions & 35 deletions Doc/faq/library.rst
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Expand Up @@ -669,41 +669,6 @@ and client-side web systems.
A summary of available frameworks is maintained by Paul Boddie at
https://wiki.python.org/moin/WebProgramming\ .

Cameron Laird maintains a useful set of pages about Python web technologies at
https://web.archive.org/web/20210224183619/http://phaseit.net/claird/comp.lang.python/web_python.


How can I mimic CGI form submission (METHOD=POST)?
--------------------------------------------------

I would like to retrieve web pages that are the result of POSTing a form. Is
there existing code that would let me do this easily?

Yes. Here's a simple example that uses :mod:`urllib.request`::

#!/usr/local/bin/python

import urllib.request

# build the query string
qs = "First=Josephine&MI=Q&Last=Public"

# connect and send the server a path
req = urllib.request.urlopen('http://www.some-server.out-there'
'/cgi-bin/some-cgi-script', data=qs)
with req:
msg, hdrs = req.read(), req.info()

Note that in general for percent-encoded POST operations, query strings must be
quoted using :func:`urllib.parse.urlencode`. For example, to send
``name=Guy Steele, Jr.``::

>>> import urllib.parse
>>> urllib.parse.urlencode({'name': 'Guy Steele, Jr.'})
'name=Guy+Steele%2C+Jr.'

.. seealso:: :ref:`urllib-howto` for extensive examples.


What module should I use to help with generating HTML?
------------------------------------------------------
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