Asynchronous Tasks with Flask and Celery

testdriven.io/blog/flask-and…

This article looks at how to configure Celery to handle long-running tasks in a Flask app.

#Flask #WebDev #Python

✍️ New post covering a #Django admin extension I wrote to prevent a certain kind of inter-request state leakage.

Perhaps niche, perhaps worth adding to Django?

Python tip:

'yield' is a keyword in Python that's used to define generators.

When a function containing yield is called, it returns an iterator that can produce a sequence of values lazily, on the fly, one at a time.

The function's state is saved after each yield.

Modern Test-Driven Development in Python
testdriven.io/blog/modern-td…

Interested in how TDD works?

This guide walks you through the process, using modern tools and techniques, from start to finish.

by @JanGiacomelli

#Python #Testing #TDD #Flask

pre-commit helps with code quality:

- don't waste time on manual code formatting

- unified code base and adhering to style guides (eg PEP8)

- run linters early + often, it prevents bugs

- less review time + good dev habits

+ it's easy to set up, see: youtube.com/watch?v=XFyLzr…

Django tip:

Use 'SplitDateTimeField' to handle separate date and time entries, seamlessly combining them into a single datetime object.

Combine it with 'SplitDateTimeWidget' to render these inputs separately, ensuring uniformity across your forms.

Django tip:

You can perform a related lookup in Django admin.

For example, you can search books in the admin by the author 👇

Django tip:

Since Django 5.0, you can use 'form_field.as_field_group' to render all the related elements of a Django form field.

Django tip:

You can enable a search box on your admin list page.
You just need to provide a list of 'search_fields' (they must be a text field) 👇

Mastering list comprehensions will supercharge your Python.

These are a compact, powerful way to do mapping, filtering, or looping operations.

If you need to apply multiple layers of validation to a form field, you can use 'ComboField'.

'ComboField' calls multiple Field clean() methods, allowing you to combine multiple validation rules.

Example 👇

✍️ New post on searching through Django’s Git log.

🔎 I often do this to find behaviour changes when upgrading client projects, at least for larger ones.

Python tip:

Python's decorators allow you to add functionality to a function or method without modifying its code directly.
This can be useful for adding logging, caching, or other behaviour to your code.

My guide '7 simple examples using Django GeneratedField ⚡️' (buff.ly/4azcu9X ) was featured in Django News yesterday 🐎 Great to see 🙂
#django

best Guide for this topic i've found. thanks Mike! Dockerizing Django with Postgres, Gunicorn, and Nginx from @TestDrivenio by @mikeherman testdriven.io/blog/dockerizi…

Django tip:

In Django admin, 'inlines' allow you to edit models on the same page as their parent model.
You can choose between 'TabularInline' or 'StackedInline' for layout.

I guarantee this is the most useless fact you'll read today…

You know when you print an object for a class without a `__repr__()` and you get the memory address?

Then you use `id()` and also get the memory address (in CPython), but it looks different?

They're the same number

Django tip:

Define methods in ModelAdmin to calculate and display data dynamically.
Use these methods in list_display to show custom values like counts or aggregates directly in your admin list view.

Python tip:

The 'removesuffix' string method removes a specified suffix from a string if it exists.

Example 👇

Happy Friday folks! 🥳 If you're looking for something to do this weekend, submit a talk proposal to DjangoCon US.

The deadline is quickly approaching ⏩ April 24, 2024 at 12 PM EDT.

Don't forget you can submit more than one!

2024.djangocon.us/news/cfp-last-…