python_koans
SQLAlchemy
python_koans | SQLAlchemy | |
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14 | 124 | |
4,870 | 8,886 | |
- | 3.1% | |
1.0 | 9.7 | |
2 months ago | 5 days ago | |
Python | Python | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
python_koans
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Gaming VS Programming
- python
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How difficult is it to get into the IT field?
The learn to code in 2 months boot camps are largely rubbish but self teaching the basics in something like Python (I like the Koans https://github.com/gregmalcolm/python_koans as they will reach you coding, Google skills, testing, and source control) will at least tell you if you like coding.
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A question about efficiency : Coin flip from Automate The Boring Stuff With Python.
This reminds me of the Python Koans .. I loved doing those :) https://github.com/gregmalcolm/python_koans
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Learning Python3 after already knowing C++
After that, I'd work through something interactive. Lots off choices here, but maybe something like the Python koans: https://github.com/gregmalcolm/python_koans
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Seeking Advice on Mentoring a New Python Developer
When I started my current job I was given a couple of weeks to learn python. (I was a ruby dev previously). I really enjoyed the Python koans (https://github.com/gregmalcolm/python_koans) as a change from just reading docs, and something that gave me some small sense of achievement
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Struggle with python.
I'm learning a new language right now and I'm finding its "koans" helpful. "Koans" are a format for tutorials that take the form of a script that runs on your computer, that you gradually fix up like Stardew Valley. There are Python koans here - https://github.com/gregmalcolm/python_koans
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Good FREE Python learning websites?
Not exactly what you asked for but a good addition to learning. https://github.com/gregmalcolm/python_koans
- Anyone know any cheap/free resources to learn python over the summer?
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Learning Python
github.com/gregmalcolm - Python Koans
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Old guy programmer here, need to brush up on Python quickly!
When I was learning Ruby for a job ruby koans was helpful. Python has a version here: https://github.com/gregmalcolm/python_koans not sure of the quality though.
SQLAlchemy
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Python: A SQLAlchemy Wrapper Component That Works With Both Flask and FastAPI Frameworks
In SQLAlchemy, models representing database tables typically subclass sqlalchemy.orm.DeclarativeBase (this class supersedes the sqlalchemy.orm.declarative_base function). Accordingly, the abstract base class in this database wrapper component is a sqlalchemy.orm.DeclarativeBase subclass, accompanied by another custom base class providing additional dunder methods.
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Xz/liblzma: Bash-stage Obfuscation Explained
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can we start considering binary files committed to a repo, even as data for tests, to be a huge red flag, and that the binary files themselves should instead be generated at testing time by source code that's stated as reviewable cleartext. This would make it much harder (though of course we can never really say "impossible") to embed a substantial payload in this way.
when binary files are part of a test suite, they are typically trying to illustrate some element of the program being tested, in this case a file that was incorrectly xz-encoded. Binary files like these weren't typed by hand, they will always ultimately come from something plaintext source.
Here's an example! My own SQLAlchemy repository has a few binary files in it! https://github.com/sqlalchemy/sqlalchemy/blob/main/test/bina... oh noes. Why are those files there? well in this case I just wanted to test that I can send large binary BLOBs into the database driver and I was lazy. This is actually pretty dumb, the two binary files here add 35K of useless crap to the source, and I could just as easily generate this binary data on the fly using a two liner that spits out random bytes. Anyone could see that two liner and know that it isn't embedding a malicious payload.
If I wanted to generate a poorly formed .xz file, I'd illustrate source code that generates random data, runs it through .xz, then applies "corruption" to it, like zeroing out the high bit of every byte. The process by which this occurs would be all reviewable in source code.
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Introducing Flama for Robust Machine Learning APIs
Besides, flama also provides support for SQL databases via SQLAlchemy, an SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL. Finally, flama also provides support for HTTP clients to perform requests via httpx, a next generation HTTP client for Python.
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Alembic with Async SQLAlchemy
Alembic is a lightweight database migration tool for usage with SQLAlchemy. The term migration can be a little misleading, because in this context it doesn't mean to migrate to a different database in the sense of using a different version or a different type of database. In this context, migration refers to changes to the database schema: add a new column to a table, modify the type of an existing column, create a new index, etc..
- Imperative vs. Declarative mapping style in Domain Driven Design project
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Unlocking efficient authZ with Cerbos’ Query Plan
To simplify this process, Cerbos developers have come up with adapters for popular Object-Relational Mapping (ORM) frameworks. You can check out for more details on the query plan repo - which also contains adapters for Prisma and SQLAlchemy - as well as a fully functioning application using Mongoose as its ORM.
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Python: Just Write SQL
That above pattern is one I've seen people do even recently, using the "select().c" attribute which from very early versions of SQLAlchemy is defined as "the columns from a subquery of the SELECT" ; this usage began raising deprecation warnings in 1.4 and is fully removed in 2.0 as it was a remnant of a much earlier version of SQLAlchemy. it will do exactly as you say, "make a subquery for each filter condition".
the moment you see SQLAlchemy doing something you see that seems "asinine", send an example to https://github.com/sqlalchemy/sqlalchemy/discussions and I will clarify what's going on, correct the usage so that the query you have is what you expect, and quite often we will add new warnings or documentation when we see people doing things we didn't anticipate.
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A steering council note about making the global
The creator and lead maintainer of SQLAlchemy, one of the most popular and most used Python library for accessing databases (who doesn't?) gave a rather interesting response to PEP703.
If this doesn't ring any alarm bells I don't know what will.
> Basically for the moment the GIL-less idea would likely be burdensome for us and the fact that it's only an "option" seems to strongly imply major compatibility issues that we would not prefer.
https://github.com/sqlalchemy/sqlalchemy/discussions/10002#d...
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More public SQL-queryable databases?
Recently I discovered BigQuery public datasets - just over 200 datasets available for directly querying via SQL. I think this is a great thing! I can connect these direct to an analytics platform (we use Apache Superset which uses Python SQLAlchemy under the hood) for example and just start dashboarding.
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How useful is Python in accounting and auditing?
When using python with sql databases like postgres or mariadb or SQLite you would use SQLAlchemy or another ORM of if you're feeling brave, you code it by hand. With ORMs you provide the address of your database and it connects for you, letting you use abstractions instead of writing all the SQL yourself (kind of analogous to using vlookups or index match instead of manually entering data).
What are some alternatives?
Tiny-Python-3.6-Notebook - This repository contains the text for the Tiny Python 3.6 Notebook.
tortoise-orm - Familiar asyncio ORM for python, built with relations in mind
Python Cheatsheet - All-inclusive Python cheatsheet
PonyORM - Pony Object Relational Mapper
Think-Python-2E-My_solutions - My solutions to the exercises contained in the "Think Python 2nd Edition" book by Allen B. Downey.
Peewee - a small, expressive orm -- supports postgresql, mysql, sqlite and cockroachdb
javascript-koans - Koans to learn Javascript
Orator - The Orator ORM provides a simple yet beautiful ActiveRecord implementation.
materials - Bonus materials, exercises, and example projects for our Python tutorials
prisma-client-py - Prisma Client Python is an auto-generated and fully type-safe database client designed for ease of use
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
pyDAL - A pure Python Database Abstraction Layer