Anyone here going to PyCon Australia next month?

I'll be going for the first time and I'm keen to meet up with fellow Aussie Pythonistas! Anyone interested?

There's a lot of interesting talks planned - are there any in particular you're keen for?

/r/Python
https://redd.it/1gav220

Hatch or uv for a new project?

I'm starting a new project, and I can't decide if hatch is needed anymore.
Hatch can install packages using uv for speed, so I used both before.

But uv allows monorepo, while hatch doesn't support it yet.

What are the differences between the two tools ? What would you choose for a new project?

/r/Python
https://redd.it/1gaz3tm

cstructpy- Python package designed for binary serialization and deserialization of structured data

This app is open source and is made using Python: https://github.com/Maxim-Mushizky/cstructpy

Also can pip install it via pypi https://pypi.org/project/cstructpy/

# What My Project Does

Provides a simple interface for packing and unpacking binary data based on field definitions using Python's struct module. The motivation for this package is to have a data validation using type annotations, similar to pydantic but for binary data. Therefore this package is best when used alongside pydantic.BaseModel or dataclasses.dataclass since it allows a similar class structure and object creation

# Target Audience

Mostly effective for distributed systems, where there are c like structs passed as binary and need to be verified in different parts of the code.

# Comparison

There are no current comparisons, since this project attempt to mimic the object creation and validation as present in Pydantic

# Contribution

If you require any new features or have a use for this package you are more than welcome to join as a celebrator

Enjoy!

/r/Python
https://redd.it/1gb0o3f

The amazing architect strikes

/r/django
https://redd.it/1gb33yy

REST API Testing - Where to run functional tests?

Hello,

At work, I'm developing a REST API with flask, and I'm wondering where I should run my functional tests.

My current CI/CD pipeline on github actions runs the unit tests (mocking / patching ) for small blocks of code, and also runs the integration tests using a docker compose (spins up database instance, and some other services on the same machine, then runs tests)

Both those tests above run locally, and run during push and merges to github.

I also have functional testing for the REST API, using pytest with request library. Once the docker image is running in a test environment on AWS (EC2), I want to be able to make calls and check if the API is working properly

My question is where should these be run from and what do most professional organizations do? Should they run:

\- Locally? (i.e. my local computer send the request to the live test server on AWS)

\- On the Github action CI/CD pipeline? if so can i configure these to run after the docker image is running?

\- On the EC2 instance itself (maybe in another container)

\- Somewhere else?

Thanks for any advice!

/r/flask
https://redd.it/1gbeeig

jinja template rendering incorrect

Anyone know why jinja template statements would get borked while being rendered?

I have a couple of if statements in my config ie:

\## template: jinja
{% if distro == 'rocky' or distro == 'centos' or distro == 'ol' or distro == 'almalinux' or distro == 'fedora' or distro == 'redhat' %}



Is rendered as:
{0 if distro == 'rocky' or distro == 'centos' or distro == 'ol' or distro == 'almalinux' or distro == 'fedora' or distro == 'redhat' 0}

I do not know what process renders the jinja code, it was working then one day I started noticing all {% show up as {0 and making it where jinja can't process the variables.
Thanks

/r/Python
https://redd.it/1gbge2q

Personal portfolio

Finally fixed my mobile menu! Really excited about how this is coming along... In the resources section I have a ecomm template but let me know if anyone want this portfolio template in that section so I can add it. More feedback welcome!
thanks in advanced Reddit people!
https://silverboi.me

/r/flask
https://redd.it/1gb664l

Friday Daily Thread: r/Python Meta and Free-Talk Fridays

# Weekly Thread: Meta Discussions and Free Talk Friday 🎙️

Welcome to Free Talk Friday on /r/Python! This is the place to discuss the r/Python community (meta discussions), Python news, projects, or anything else Python-related!

## How it Works:

1. Open Mic: Share your thoughts, questions, or anything you'd like related to Python or the community.
2. Community Pulse: Discuss what you feel is working well or what could be improved in the /r/python community.
3. News & Updates: Keep up-to-date with the latest in Python and share any news you find interesting.

## Guidelines:

All topics should be related to Python or the /r/python community.
Be respectful and follow Reddit's Code of Conduct.

## Example Topics:

1. New Python Release: What do you think about the new features in Python 3.11?
2. Community Events: Any Python meetups or webinars coming up?
3. Learning Resources: Found a great Python tutorial? Share it here!
4. Job Market: How has Python impacted your career?
5. Hot Takes: Got a controversial Python opinion? Let's hear it!
6. Community Ideas: Something you'd like to see us do? tell us.

Let's keep the conversation going. Happy discussing! 🌟

/r/Python
https://redd.it/1gbh5k3

How do Session IDs work?

New to Flask. What I know is there are 2 ways to implement sessions: client-side and server-side. The former uses the default flask session (from flask import session) while the later uses a library called Flask-Session (need to add from flask_session import Session) .

I read both flask and Flask-Session docs, I still can't wrap my head around how sessions really work. The default session will turn your session data dict into cookie, then salt it, add signature, encode in base64. The Flask-Session's session still uses cookie, but it only contains the session identifier.

Session identifier is for identifying users, duh. But I have some questions:

1. Since Flask-Session is just extension of the deault session, do both of them implement the same approach to assigning session ID?
2. Where can I find the session IDs of the users?
3. Is it going to reset after closing the tab? browser?
4. When I do session.clear(), is everything cleared, including the session ID?

Again, sorry for asking these dumb questions. Any help would be appreciated. Thanks!

/r/flask
https://redd.it/1gb6kzq

Ethics concerns and Google D

Apologies if this isn't the right place for this facet of ML, but it didn't seem against the rules.

I recently participated in an Alphabet human data research study used to evaluate AI agents and models.

Without going further into the details, the structure of the study felt very ethically questionable. The agreement said if there were any concerns, to contact HuBREC, human behavioural research ethics committee.

However, their email provided in the agreement hubrec@google.com does not exist and I have no point of contact at all short of looking up past academic talks and cold emailing people.

I am having a lot of difficulty searching for next steps as there is no other contact information I can use except for that email. I do know that Google has fired AI ethics researchers in recent memory, and that this topic never seems to be taken seriously. It seems like a bad look for an on-going study to point you to a committee that doesn't seem to exist.

/r/MachineLearning
https://redd.it/1gbblsc

need help for django with aws s3 bucket

i have a website with backend django (digital ocean ) (dockerize the app )hosted in the backend and vite react project in s3 bucket i keep getting this error , I'm sure settings,py file is correct, i tried all of

CORSALLOWEDORIGINS =
    'http://myappsfrontends.s3-website-us-east-1.amazonaws.com',

ALLOWEDHOSTS = ['*']


CORSORIGINALLOWALL = True

and setup the cors middleware in the right order

i spent week searching all of stackoverflow and reddit for solutions and nothing works, so this is the last solution

(i'm using aws just to learn some cloud to increase my skills )

cors policy in aws

[

{

"AllowedHeaders": [

"*"

\],

"AllowedMethods": [

"GET",

"PUT",

"POST",

"DELETE"

\],

"AllowedOrigins": [

"http://myappsfrontends.s3-website-us-east-1.amazonaws.com"

\],

"ExposeHeaders": [

"Content-Range",

"Content-Length",

"ETag"

\],

"MaxAgeSeconds": 3000

}

\]

https://preview.redd.it/hfa5s7c3mrwd1.png?width=1887&format=png&auto=webp&s=739741d0e97e6c6ed2123e09e04616f5d5c1d517



/r/djangolearning
https://redd.it/1gbcw7e

Manim : package for maths animation

I recently explored Manim, an open-sourced python package for generating animated videos for explaining maths. It includes animations for shapes, equations, codes, graphs, etc. The repo is trending on GitHub as well. The demo also looks very impressive. Check it out here : https://youtu.be/QciJxVjF4M4?si=Bk_gU4Tj5f6gPpiq

/r/Python
https://redd.it/1gbldgk

PyGenTree: A Simple Yet Powerful Python Package for Generating ASCII Directory Trees

# What My Project Does

PyGenTree is a Python package that generates ASCII tree representations of directory structures. It's a simple command-line tool that allows you to visualize the structure of your project or any directory on your system. With PyGenTree, you can easily document your project's structure, quickly understand unfamiliar codebases, or generate directory trees for README files.

# Target Audience

PyGenTree is designed for developers, programmers, and anyone who works with directory structures on a regular basis. It's a useful tool for:

* Developers who want to document their project's structure
* Programmers who need to quickly understand unfamiliar codebases
* DevOps teams who want to visualize directory structures for deployment or debugging purposes
* Anyone who wants to generate directory trees for README files or documentation purposes

# Comparison

There are existing tools that generate directory trees, such as `tree` on Linux and `dir` on Windows. There are online ASCII Tree Generators where you have to manually add files and directories. There are some python packages similar to this, but I tried to combine all the useful features from these alternatives and create this one. PyGenTree differs from these alternatives in several ways:

* **Cross-platform compatibility**: PyGenTree works on Windows, macOS, and Linux, making it a great

/r/Python
https://redd.it/1gbnnbu

Help Needed: Scaling My RAG-Based LLM Browser Extension

Hi everyone,

I've developed a browser extension using a Retrieval-Augmented Generation (RAG) model that works great with PDF files stored locally on my machine, with server running on flask. Now, I’m looking to scale this solution for broader use and could really use some advice from experts here as I’m new to deployment.

Here are my key questions:

1. Secured Authorization System: What’s the best approach to create a secure authorization system that adheres to modern security standards?
2. Secure Data Storage: I plan to let users upload their data (primarily PDFs for now). This data needs to be encrypted and protected against security threats. What’s the recommended way to store this data securely while keeping these threats in mind?
3. Affordable LLM Service: (Not a priority but still relevant) Right now, I’m using the gemini-1.5-flash API with my own key. I’m looking for suggestions on any free or low-cost LLM services I can use at scale.

Any insights, advice, or pointers would be greatly appreciated! Thanks in advance!

/r/flask
https://redd.it/1gav6h7

This is now valid syntax in Python 3.13!

There are a [few changes that didn't get much attention](https://www.bitecode.dev/p/python-313-what-didnt-make-the-headlines) in the last releases, and one of them is that comprehensions and lambdas can now be used in annotations (the place where you put type hints).

As the article mentions, this came from a bug tickets that requested this to work:

class name_2[*name_5, name_3: int]:
(name_3 := name_4)

class name_4[name_5: name_5]((name_4 for name_5 in name_0 if name_3), name_2 if name_3 else name_0):
pass


Here we have a walrus, unpacking, type vars and a comprehension all in one. I tried it in 3.13 (you gotta create a few variables), and yes, it is now valid syntax.

I don't think I have any use for it (except the typevar, it's pretty sweet), but I pity the person that will have to read that one day in a real code base :)






/r/Python
https://redd.it/1gbu1g0

[R] Breaking the Memory Barrier: Near Infinite Batch Size Scaling for Contrastive Loss
https://arxiv.org/abs/2410.17243

/r/MachineLearning
https://redd.it/1gbvapp

Single line turns the dataclass into a GUI/TUI & CLI application

I've been annoyed for years of the overhead you get when building a user interface. It's easy to write a useful script but to put there CLI flags or a GUI window adds too much code. I've been crawling many times to find a library that handles this without burying me under tons of tutorials.

Last six months I spent doing research and developing a project that requires low to none skills to produce a full app out of nowhere. Unlike alternatives, mininterface requires almost nothing, no code modification at all, no learning. Just use a standard dataclass (or a pydantic model, attrs) to store the configuration and you get (1) CLI / config file parsing and (2) useful dialogs to be used in your app.

I've used this already for several projects in my company and I promise I won't release a new Python project without this ever again. I published it only last month and have presented it on two conferences so far – it's still new. If you are a developer, you are the target audience. What do you think, is the interface intuitive enough? Should I rename a method or something now while the project is still a

/r/Python
https://redd.it/1gbprvv

Posting 2 - the HTTP client TUI, now supports Python scripting, custom keymaps, and more!

Hello r/Python

I'm excited to share Posting 2 with you all!

# What My Project Does

Posting is a terminal based app for interacting with HTTP APIs. It's a bit like Postman, Insomnia, Bruno, etc.

Posting is a snappy and keyboard-centric UI, built for power users but still approachable for those who aren't familiar with terminal apps.

You can build up requests using the UI, send them and interact with the response, and save the requests to disk as simple YAML files for easy sharing, version control, and re-use.

Posting offers efficient "jump mode" navigation which allows you to jump across the UI quickly with the keyboard, extensive autocompletion, themes, integration with other tools (e.g. quickly swap into Vim to edit a request body and swap back), and a bunch more quality-of-life features to let you move fast.

It's written entirely in Python using the Textual framework, and also uses great Python tools like httpx and Pydantic.

With the new release of version 2, you can now run Python code before and after requests! This lets you perform setup and teardown (e.g. logging, setting variables, tokens, etc.).

This version also introduces the (frequently requested) ability to change your keymap for a variety of actions. This will hopefully prevent keybind

/r/Python
https://redd.it/1gc0tiu

Webapp hosting resources

I going develop a webapp in django that can to post image and text. Get registion form data from user. Now don't know how much Hosting resource like cpu, ram, bandwidth for 100 to 500 user . Also tell some free and paid webapp Hosting service in low cost for startup

/r/djangolearning
https://redd.it/1gc1xh0

Pixel-map: A Python CLI tool for plotting geo files in the terminal

# What My Project Does

[**Pixel-map**](https://github.com/RaczeQ/pixel-map) displays geo data in the terminal. It can be used to quickly look into the geospatial data without opening generating HTML maps or using tools like [kepler.gl](https://kepler.gl/).

GitHub: [https://github.com/RaczeQ/pixel-map](https://github.com/RaczeQ/pixel-map)

PyPI: [https://pypi.org/project/pixel-map/](https://pypi.org/project/pixel-map/)

Since I can't embed images in this post, I can only show you the Black and White modes of the library.

ASCII renderer `ascii-bw`:

$ pixel-map arc-de-triomphe.parquet -r ascii-bw --width 82 --height 43 --no-bg
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━ arc-de-triomphe.parquet ━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃                                                                               ┃
┃                                                                               ┃
┃                                                @@L_  jr                

/r/Python
https://redd.it/1gc3a1k