Python

The first, only convert pug into another template :/
The second, didn't pass the alpha version.
The third, require dependence, not maintained etc.. \

So I didn't found a Python package that could do haml/pug to html directly, without too much dependence...

For example:

From

html
  head title Example for Python discuss
  body
    h1 Hello world
    p This is a paragraph.

<html>
  <head>
    <title>Example for Python discuss</title>
  </head>
  <body>
    <h1>Hello world</h1>
    <p>This is a paragraph.</p>
  </body>
</html>

Do you know if such thing exist ?
If not, I will build my own (FLOSS). ( I'm open to any advice to do so :) )

Thanks

[^1]:Pug is a template engine heavily influenced by Haml and implemented with JavaScript 🤮 for Node.js

How encrypt email title ? ( GnuPG ) (programming.dev)

submitted 6 days ago* (last edited 6 days ago) by Rick_C137@programming.dev to c/python@programming.dev

2 comments fedilink

Hi,

I'm following my previous post
How encrypt email with a GnuPG public key ? [ solved ]

So I managed to encrypt the email body with GnuPG public key.. But I don't figure how I can do the same for the title ?!
ThunderBird manage it.. any idea how ?
asked on Official Thunderbird forum

Thanks.

What would Enaml 2.0 look like? | nucleic/enaml | Declarative UI (github.com)

submitted 1 week ago by Andy@programming.dev to c/python@programming.dev

0 comments fedilink

From Enaml's docs:

Enaml brings the declarative UI paradigm to Python in a seamlessly integrated fashion. The grammar of the Enaml language is a strict superset of Python. This means that any valid Python file is also a valid Enaml file, though the converse is not necessary true. The tight integration with Python means that the developer feels at home and uses standard Python syntax when expressing how their data models bind to the visual attributes of the UI.

. . .

Enaml’s declarative widgets provide a layer of abstraction on top of the widgets of a toolkit rendering library. Enaml ships with a backend based on Qt5/6 and third-party projects such as enaml-web and enaml-native provides alternative backends.

A maintainer of Enaml has just opened a brainstorm discussion on the next major development goals.

It's a project I've long admired, though rarely used, and I'd love to see it get some attention and a revamp. I think the bar these days has been raised by projects like QML and Slint, which provide a great context in which to set new goals.

267

Python Overtakes JavaScript as Most Popular Language on GitHub (www.omgubuntu.co.uk)

submitted 1 week ago by neme@lemm.ee to c/python@programming.dev

87 comments fedilink

Confused about logical operators (i.e. "comparison operators", or "boolean operators") in Python (lemmy.blahaj.zone)

submitted 1 week ago* (last edited 6 days ago) by EveryMuffinIsNowEncrypted@lemmy.blahaj.zone to c/python@programming.dev

33 comments fedilink

Note: The attached image is a screenshot of page 31 of Dr. Charles Severance's book, Python for Everybody: Exploring Data Using Python 3 (2024-01-01 Revision).

I thought = was a mathematical operator, not a logical operator; why does Python use

>= instead of >==, or <= instead of <==, or != instead of !==?

Thanks in advance for any clarification. I would have posted this in the help forums of FreeCodeCamp, but I wasn't sure if this question was too.......unspecified(?) for that domain.

Cheers!

Edit: I think I get it now! Thanks so much to everyone for helping, and @FizzyOrange@programming.dev and @itslilith@lemmy.blahaj.zone in particular! ^_^

🧵 Free-Threaded Wheels (hugovk.github.io)

submitted 1 week ago by norambna@programming.dev to c/python@programming.dev

0 comments fedilink

via https://mastodon.social/@hugovk/113385974873569374

hugovk.github.io/free-threaded-wheels/ tracks how many of the top 360 PyPI packages have free-threaded wheels.

Green packages (currently 3%) offer has free-threaded wheels

Uncoloured packages (82%) offer pure-Python wheels

Orange packages (16%) have no wheels ready for free-threading (yet!)

See also Quansight Labs' https://py-free-threading.github.io/tracking/ for a smaller yet fine-grained tracker that also includes build tools.

Python 3.13, what didn't make the headlines (www.bitecode.dev)

submitted 2 weeks ago by norambna@programming.dev to c/python@programming.dev

11 comments fedilink

via https://framapiaf.org/@bitecode/113368174297795284

PyBay 2024 talks on YouTube (www.youtube.com)

submitted 2 weeks ago by norambna@programming.dev to c/python@programming.dev

0 comments fedilink

via https://fosstodon.org/@pybay/113368608503005830

Python Big O: the time complexities of different data structures in Python (www.pythonmorsels.com)

submitted 2 weeks ago by norambna@programming.dev to c/python@programming.dev

8 comments fedilink

via https://mastodon.social/@treyhunner/113367936771761302

Updating pip in a FUSE cryptomator vault breaks venv (sh.itjust.works)

submitted 2 weeks ago by DevCuber@sh.itjust.works to c/python@programming.dev

0 comments fedilink

I store my programs in a cryptomator vault which uses a fuse virtual drive (The default on Linux), but when trying to update pip inside a venv I get an error, then any subsequent use of pip also throws an error and {path_to_venv}/lib/python3.12/site-packages/pip/ becomes empty.

I imagine this is an issue that would happen in any FUSE drive although I don't know how to test that.

Here are the logs

OS : Fedora 40
pip version: 23.3.2 updating to 24.2
python version: 3.12.7

I already made a bug report on the github

Does anyone know a temporary workaround for this ?

Started a Simulation with Python Blog (quantasticjourney.blogspot.com)

submitted 2 weeks ago by ecstatic_chance@mander.xyz to c/python@programming.dev

6 comments fedilink

The first post of a new python blog I started if anyone is interested.

Functional Programming Tips in Python (bitscomplicated.com)

submitted 2 weeks ago by bitscomplicated@lemmy.world to c/python@programming.dev

0 comments fedilink

I am including the full text of the post

Despite not being a pure functional language, a lot of praise that python receives are for features that stem from functional paradigms. Many are second nature to python programmers, but over the years I have seen people miss out on some important features. I gathered a few, along with examples, to give a brief demonstration of the convenience they can bring.

Replace `if/else` with `or`

With values that might be None, you can use or instead of if/else to provide a default. I had used this for years with Javascript, without knowing it was also possible in Python.

def get_greeting_prefix(user_title: str | None):
	if user_title:
		return user_title
	return ""

Above snippet can shortened to this:

def get_greeting_prefix(user_title: str | None):
	return user_title or ""

Pattern Matching and Unpacking

The overdue arrival of match to python means that so many switch style statements are expressed instead with convoluted if/else blocks. Using match is not even from the functional paradigm, but combining it with unpacking opens up new possibilities for writing more concise code.

Let's start by looking at a primitive example of unpacking. Some libraries have popularised use of [a, b] = some_fun(), but unpacking in python is much powerful than that.

[first, *mid, last] = [1, 2, 3, 4, 5]
# first -> 1, mid -> [2, 3, 4], last -> 5

Matching Lists

Just look at the boost in readability when we are able to name and extract relevant values effortlessly:

def sum(numbers: [int]):
	if len(numbers) == 0:
		return 0
	else:
		return numbers[0] + sum(numbers[1:])

def sum(numbers: [int]):
	match numbers:
		case []:
			return 0
		case [first, *rest]:
			return first + sum(rest)

Matching Dictionaries

Smooth, right? We can go even further with dictionaries. This example is not necessarily better than its if/else counterpart, but I will use it for the purpose of demonstrating the functionality.

sample_country = {"economic_zone": "EEA", "country_code": "AT"}

def determine_tourist_visa_requirement(country: dict[str, str]):
	match country:
		case {"economic_zone": "EEA"}:
			return "no_visa"
		case {"country_code": code} if code in tourist_visa_free_countries:
			return "non_tourist_visa_only"
		case default:
			return "visa_required"

Matching `Dataclasses`

Let’s write a function that does a primitive calculation of an estimated number of days for shipment

@dataclass
class Address:
	street: str
	zip_code: str
	country_code: str

def calculate_shipping_estimate(address: Address) -> int:
	match address:
		case Address(zip_code=zc) if close_to_warehouse(zc):
			return 1
		case Address(country_code=cc) if cc in express_shipping_countries:
			return 2
		case default:
			return provider_estimate(city.coordinates)

Comprehensions

List comprehensions get their deserved spotlight, but I’ve seen cases where dictionary comprehension would’ve cut multiple lines. You can look at examples on this page on python.org

Domino effect in 10 lines of Python code (Blender 3d) (slicker.me)

submitted 2 weeks ago by monica_b1998@lemmy.world to c/python@programming.dev

4 comments fedilink

First time using the walrus operator! (programming.dev)

submitted 3 weeks ago by Hammerheart@programming.dev to c/python@programming.dev

2 comments fedilink

I am working on a rudimentary Breakout clone, and I was doing the wall collision. I have a function that I initially treated as a Boolean, but I changed it to return a different value depending on which wall the ball hit. I used the walrus operator to capture this value while still treating the function like a bool. I probably could have just defined a variable as the function's return value, then used it in an if statement. But it felt good to use this new thing I'd only heard about, and didn't really understand what it did. I was honestly kind of surprised when it actually worked like I was expecting it to! Pretty cool.

Python-related happenings for the week of 14 October 2024 (programming.dev)

submitted 3 weeks ago* (last edited 3 weeks ago) by jnovinger@programming.dev to c/python@programming.dev

2 comments fedilink

Events

14 October
- CLEpy meetup - via https://fosstodon.org/@clepy/113311328924148486

Releases

14 October
- pyparsing 3.2.0 - via https://fosstodon.org/@ptmcg/113302603878074247
15 October
- eve 2.2 - via https://fosstodon.org/@nicola/113310333550705121
- pillow 11.0.0 - via https://mastodon.social/@hugovk/113312137194438039 (and https://fosstodon.org/@pillow/113312110767354794)
- validate-pyproject 0.21 - via https://fosstodon.org/@henryiii/113312246938821428

Replace pyenv with uv - Franck Pommereau - Blog (www.ibisc.univ-evry.fr)

submitted 3 weeks ago by jnovinger@programming.dev to c/python@programming.dev

6 comments fedilink

Via https://mamot.fr/@fp/113311994869600315

Migrating a Python library to uv (quentin.pradet.me)

submitted 3 weeks ago by jnovinger@programming.dev to c/python@programming.dev

0 comments fedilink

Via https://fosstodon.org/@quentinpradet/113311962538364238

Multiple process or threads? And, why? (programming.dev)

submitted 3 weeks ago by anzo@programming.dev to c/python@programming.dev

16 comments fedilink

(For context, I'm basically referring to Python 3.12 "multiprocessing.Pool Vs. concurrent.futures.ThreadPoolExecutor"...)

Today I read that multiple cores (parallelism) help in CPU bound operations. Meanwhile, multiple threads (concurrency) is due when the tasks are I/O bound.

Is this correct? Anyone cares to elaborate for me?

At least from a theorethical standpoint. Of course, many real work has a mix of both, and I'd better start with profiling where the bottlenecks really are.

If serves of anything having a concrete "algorithm". Let's say, I have a function that applies a map-reduce strategy reading data chunks from a file on disk, and I'm computing some averages from these data, and saving to a new file.

I know Python basics, what next? (learnbyexample.github.io)

submitted 3 weeks ago by learnbyexample@programming.dev to c/python@programming.dev

4 comments fedilink

Join the Python Developers Survey 2024: Share your experience! (pyfound.blogspot.com)

submitted 1 month ago by norambna@programming.dev to c/python@programming.dev

0 comments fedilink

How encrypt email with a GnuPG public key ? [ solved ] (programming.dev)

submitted 1 month ago* (last edited 1 month ago) by Rick_C137@programming.dev to c/python@programming.dev

6 comments fedilink

Hi,

I'm already using

from smtplib import SMTP_SSL
from email.message import EmailMessage

To send emails.

Now I would like to be able to encrypt them with the public key of the recipient. ( PublicKey.asc )

an A.I provide me this

import smtplib
from email.message import EmailMessage
from cryptography.hazmat.primitives.asymmetric import ec
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.ciphers.aead import AESGCM

# Load the ECC public key from the .asc file
with open('recipient_public_key.asc', 'rb') as key_file:
    public_key_bytes = key_file.read()
public_key = ec.EllipticCurvePublicKey.from_public_bytes(
    ec.SECP384R1(),
    public_key_bytes
)

# Create the email message
msg = EmailMessage()
msg.set_content('This is the encrypted email.')
msg['Subject'] = 'Encrypted Email'
msg['From'] = 'you@example.com'
msg['To'] = 'recipient@example.com'

# Encrypt the email message using the ECC public key
nonce = bytes.fromhex('000102030405060708090a0b0c0d0e0f')
cipher = AESGCM(public_key.public_key().secret_key_bytes)
ciphertext = cipher.encrypt(nonce, msg.as_bytes(), None)

# Send the encrypted email
server = smtplib.SMTP('smtp.example.com')
server.send_message(msg, from_addr='you@example.com', to_addr='recipient@example.com')
server.quit()

# Save the encrypted email to a file
with open('encrypted_email.bin', 'wb') as f:
    f.write(ciphertext)

I like the approach, only one "low level" import cryptography

but the code seem wrong. if the body has been encrypted as ciphertext I don't see this one included while sending the email.

How are you doing it ? or do you have good tutorial, documentations ? because I found nothing "pure and simple" meaning not with of unnecessary stuff.

Thanks.

The Ultimate Guide to Error Handling in Python (blog.miguelgrinberg.com)

submitted 1 month ago by norambna@programming.dev to c/python@programming.dev

2 comments fedilink

via https://mstdn.social/@miguelgrinberg/113266572735273155

Python

📅 Events

🐍 Python project:

💓 Python Community:

✨ Python Ecosystem:

🌌 Fediverse

Communities

Projects

Feeds

Replace if/else with or

Pattern Matching and Unpacking

Matching Lists

Matching Dictionaries

Matching Dataclasses

Comprehensions

Events

Releases

Replace `if/else` with `or`

Matching `Dataclasses`