baseplate.py VS Pyramid

Almost any download link on the internet (for example an attachment to any Wordpress blog post) could serve as an example. Since we are on a programming subreddit let's use Github as an example. When you open a repository and click the "Download ZIP" button it's a link straight to an URL like this one: https://github.com/reddit/baseplate.py/archive/refs/heads/develop.zip (this particular one is for Reddit's Python library).

Even Reddit has python backends https://github.com/reddit/baseplate.py based on Pyramid. They also have a go one. https://github.com/reddit/baseplate.go

there's a multitude of services in reddit's architecture. as far as i can tell, they mostly using reddit's baseplate framework (which has implementations in both python and go).

Finally, the problem that we didn’t experience directly, but it was mentioned during consultations with another team that had experience with pgBouncer: the Baseplate.py framework that both of us are using sometimes leaked the connections, leaving them open after the request, but not returning them back into the pool.

Also reddit team using pyramid for services https://github.com/reddit/baseplate.py

Reddit is built on neither Flask nor Django. The old monolith predates Flask and Django and is built on its own framework. Our new microservices are built on our Baseplate.py framework.

Minsky is an internal baseplate.py (Reddit’s python web services framework) thrift service owned by Reddit’s Machine Learning team that serves data or derivations of data related to content relevance heuristics — such as similarity between subreddits, a subreddits topic or a users propensity for a given subreddit — from various data stores such as Cassandra or in process caches. Clients of Minsky use this data to improve Redditor’s experiences with the most relevant content. Over the last few years a set of new ML capabilities, referred to as Gazette, were built into Minsky. Gazette is responsible for serving ML model inferences for personalization tasks along with configuration based schema resolution and feature fetching / transformation.

Baseplate is implemented in Python and Go, and although they share the same main functionality, smaller features differ between the two. One such feature that was previously on the Go implementation but not Python was deadline budget propagation, which passes on the remaining timeout available from the initial client request all the way through the server and any other requests that may follow. The lack of this feature in Baseplate.py meant that many resources were being wasted by servers doing unnecessary work, despite clients no longer awaiting their response due to timeout.

In order to make this solution work, you’ll need a web stack that can handle many concurrent requests. Reddit’s stack for most microservices is Python 3, Baseplate, and gevent. Django/Flask also work well when run with gevent. gevent is a Python library that transparently enables your microservice to handle high concurrency and I/O without requiring changes to your code. It is the secret sauce that allows you to run tens of thousands of pseudo-threads called greenlets (one per concurrent request) on a small number of instances. It allows for threads handling concurrent duplicate requests to be enqueued while waiting to acquire the lock, and then for those queues to be drained as threads acquire the lock and execute serially, all without exhausting the thread pool.

You don't need a framework for a single page. That being said, using a framework is probably a good idea if you intend to be on a growth curve.

Pyramid is a framework written to scale from a small, single-file site to a site that has grown horizontally scaled across multiple servers. If I understand your needs correctly, Pyramid is probably worth a look, here's a link: https://trypyramid.com/

Pyramid is under active development, and it has a large, helpful, welcoming user community.

Pyramid (https://trypyramid.com/) is nice in that it has URL dispatch predicates, like @view_config(header="HX-Target-Name=foo") which lets you have HTMX-specific view functions, which return only what is needed

Another option my professional web friends like is Pyramid: https://trypyramid.com/ -- it's for professional-level websites/apps that can't use Django for some reason.

Building, constructing, and maintaining websites is a broad definition of web development. A front-end, which communicates with the client, and a back-end, which contains business logic and interacts with a database, are typical components of web development. Python also supports quite a percentage of the total websites, web apps and software running in the world wide web. The libraries that are applied in web development include: Django, Flask, Pyramid and Turbogears and Web2Py

Pyramid

I've been looking for an alternative to Flask and found Pyramid (https://github.com/Pylons/pyramid). API looks great, lots of good design, almost everything I'm looking for, but it looks like this project is near dead. Not much movement since release 2.0, last commit 15th March 2021 (https://github.com/Pylons/pyramid/graphs/contributors).

i been messing with Laravel lately, and it's ass. and/or the entire modern stack is ass. i actually had this app built for me, and i asked the dev to try to strip out as much shit as possible, including, obviously, tailwind. dev did a good job, but it's still a disaster.

flask looks like a dream comparatively.

but. is there a middle ground?

i was a product manager-type on a (python) pylons pyramid project -- https://trypyramid.com/ -- "the start small, finish big, stay finished framework" -- the message sounds good.

seemed fine, but i wasn't a dev on it, and we still had plenty of moving parts for what was a relatively simple e-commerce cms (that, admittedly, had a lot of functionality).

what i really want is a straightjacket -- some framework that says, 'oh, you want to plug in a different templating engine? how about fuck you? will fuck you work for you?'

but i guess that doesn't earn many github stars.

if i had to pick one or recommend one with no other qualifiers, i'd pick sinatra. that way i could do it my way.

For Python, I would recommend Pyramid as a lightweight framework.

If your app is really small/short, you're only fetching crime data and rendering a static image, you can probably do it all with a Cloud Function. This way you don't even need to have nor learn about nor use full web frameworks like Flask, Django, Pyramid, etc. Just raw code plus an HTML template and perhaps a tiny bit of Flask/Jinja2 to render the template.