How do I use genshi.builder to programmatically build an HTML document?
I recently discovered the genshi.builder module. It reminds me of Divmod Nevow's Stan module. How would one use genshi.builder.tag to build an HTML document with a particular doctype? Or is this even a good thing to do? If not, what is the right way?
Asked by: Melissa861 | Posted: 01-10-2021
It's not possible to build an entire page using just
genshi.builder.tag -- you would need to perform some surgery on the resulting stream to insert the doctype. Besides, the resulting code would look horrific. The recommended way to use Genshi is to use a separate template file, generate a stream from it, and then render that stream to the output type you want.
genshi.builder.tag is mostly useful for when you need to generate simple markup from within Python, such as when you're building a form or doing some sort of logic-heavy modification of the output.
See documentation for:
If you really want to generate a full document using only
builder.tag, this (completely untested) code could be a good starting point:
from itertools import chain from genshi.core import DOCTYPE, Stream from genshi.output import DocType from genshi.builder import tag as t # Build the page using `genshi.builder.tag` page = t.html (t.head (t.title ("Hello world!")), t.body (t.div ("Body text"))) # Convert the page element into a stream stream = page.generate () # Chain the page stream with a stream containing only an HTML4 doctype declaration stream = Stream (chain ([(DOCTYPE, DocType.get ('html4'), None)], stream)) # Convert the stream to text using the "html" renderer (could also be xml, xhtml, text, etc) text = stream.render ('html')
The resulting page will have no whitespace in it -- it'll look normal, but you'll have a hard time reading the source code because it will be entirely on one line. Implementing appropriate filters to add whitespace is left as an exercise to the reader.Answered by: Walter244 | Posted: 02-11-2021
Genshi.builder is for "programmatically generating markup streams". I believe the purpose of it is as a backend for the templating language. You're probably looking for the templating language for generating a whole page.
You can, however do the following:
>>> import genshi.output >>> genshi.output.DocType('html') ('html', '-//W3C//DTD HTML 4.01//EN', 'http://www.w3.org/TR/html4/strict.dtd')
See other Doctypes here: http://genshi.edgewall.org/wiki/ApiDocs/genshi.output#genshi.output:DocType
Answered by: First Name895 | Posted: 02-11-2021
python - How to programmatically enable/disable network interfaces? (Windows XP)
I need to enable/disable completely network interfaces from a script in Windows XP. I'm looking for a python solution, but any general way (eg WMI, some command-line à la netsh, some windows call) is welcome and will be adjusted. Thanks.
python - Programmatically launching standalone Adobe flashplayer on Linux/X11
The standalone flashplayer takes no arguments other than a .swf file when you launch it from the command line. I need the player to go full screen, no window borders and such. This can be accomplished by hitting ctrl+f once the program has started. I want to do this programmatically as I need it to launch into full screen without any human interaction. My guess is that I need to some how get a handle to the window ...
python - How to create a picture with animated aspects programmatically
Background I have been asked by a client to create a picture of the world which has animated arrows/rays that come from one part of the world to another. The rays will be randomized, will represent a transaction, will fade out after they happen and will increase in frequency as time goes on. The rays will start in one country's boundary and end in another's. As each animated transaction happens a conti...
python - How do you programmatically reorder children of an ATFolder subclass?
I have Plone product that uses a custom folder type for containing a set of custom content objects. The folder type was created by subclassing BaseFolder and it has a schema with a couple of text fields. Currently, when custom objects are added to the custom folder, the objects are sorted alphabetically by their id. How can I override this behavior and allow my users to sort the custom folders manually, say through the ...
How to get the python.exe location programmatically?
This question already has answers here:
python - Programmatically taking screenshots in windows without the application noticing
This question already has answers here:
python - Discovering public IP programmatically
I'm behind a router, I need a simple command to discover my public ip (instead of googling what's my ip and clicking one the results) Are there any standard protocols for this? I've heard about STUN but I don't know how can I use it? P.S. I'm planning on writing a short python script to do it
python - Best way to programmatically create image
I'm looking for a way to create a graphics file (I don't really mind the file type, as they are easily converted). The input would be the desired resolution, and a list of pixels and colors (x, y, RGB color). Is there a convenient python library for that? What are the pros\cons\pitfalls?
python - Scrolling QGraphicsView programmatically
I've want to implement a scroll/pan-feature on a QGraphicsView in my (Py)Qt application. It's supposed to work like this: The user presses the middle mouse button, and the view scrolls as the user moves the mouse (this is quite a common feature). I tried using the scroll() method inherited from QWidget. However, this somehow moves the view instead - scrollbars and all. See picture. So, given that this is not the wa...