pydantic VS SQLAlchemy

Compare pydantic vs SQLAlchemy and see what are their differences.

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pydantic SQLAlchemy
172 129
19,759 9,179
3.0% 2.5%
9.8 9.7
2 days ago 8 days ago
Python Python
MIT License MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.

pydantic

Posts with mentions or reviews of pydantic. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-07-16.
  • Checkbox Extraction from PDFs - A Tutorial
    3 projects | dev.to | 16 Jul 2024
    If you carefully think about it, the system that extracts raw text from the PDF needs to both detect and render PDF form elements like checkboxes and radiobuttons in a way that LLMs can understand. In this example, we’ll use LLMWhisperer to extract PDF raw text representing checkboxes and radiobuttons. You can use LLMWhisperer completely free for processing up to 100 pages per day. As for structuring the output from LLMWhisperer, we’ll use GPT3.5-Turbo and we’ll use Langchain and Pydantic to help make our job easy.
  • Table Extraction and Processing from PDFs - A Tutorial
    3 projects | dev.to | 11 Jul 2024
    Pydantic: Use Pydantic to declare your data model. This output parser allows users to specify an arbitrary Pydantic Model and query LLMs for outputs that conform to that schema.
  • Supercharge Your Python Toolkit with These Powerful Tools
    4 projects | dev.to | 8 Jul 2024
    1. Pydantic: Ultimate Data Validation
  • JSON extra uses orjson instead of ujson
    4 projects | news.ycombinator.com | 5 Jun 2024
    I'm really surprised ijl got angry that his mail was quoted, it looks innocent enough to me.

    For reference it's been edited out here: https://github.com/pydantic/pydantic/issues/589

    But github shows edits, so the edit is meaningless for privacy. Here's the original mail (yes, I'm blatantly ignoring his request to not publish this, I'm just this evil.)

        I've looked into replacing ujson in pydantic with orjson
  • Advanced RAG with guided generation
    2 projects | dev.to | 18 Apr 2024
    First, note the method prefix_allowed_tokens_fn. This method applies a Pydantic model to constrain/guide how the LLM generates tokens. Next, see how that constrain can be applied to txtai's LLM pipeline.
  • utype VS pydantic - a user suggested alternative
    2 projects | 15 Feb 2024
    utype is a concise alternative of pydantic with simplified parameters and usages, supporting both sync/async functions and generators parsing, and capable of using native logic operators to define logical types like AND/OR/NOT, also provides custom type parsing by register mechanism that supports libraries like pydantic, attrs and dataclasses
  • Pydantic v2 ruined the elegance of Pydantic v1
    1 project | news.ycombinator.com | 28 Jan 2024
  • Ask HN: Pydantic has too much deprecation. Why is it popular?
    1 project | news.ycombinator.com | 3 Jan 2024
    I like some of the changes from v1 to v2. But then you have something like this [0] removed from the library without proper documentation or replacement, resulting in ugly workarounds in the link that wont' work properly.

    [0]: https://github.com/pydantic/pydantic/discussions/6337

  • OpenAI uses Pydantic for their ChatCompletions API
    1 project | news.ycombinator.com | 3 Dec 2023
  • 🍹GinAI - Cocktails mixed with generative AI
    3 projects | dev.to | 19 Oct 2023
    The easiest implementation I found was to use a PyDantic class for my target schema — and use that as a parameter for the method call to “ChatCompletion.create()”. Here’s a fragment of the GinAI Python classes used.

SQLAlchemy

Posts with mentions or reviews of SQLAlchemy. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-06-12.
  • Track Errors in Your Python Flask Application with AppSignal
    2 projects | dev.to | 12 Jun 2024
    We'll use the Flask-SQLAlchemy package to manage the database. This package provides SQLAlchemy support to Flask projects. That includes the Python SQL toolkit and the ORM.
  • Building a Travel Agency Website with the Rapyd Payment Gateway
    3 projects | dev.to | 11 Jun 2024
    SQLite for the database
  • A single ChatGPT mistake cost us $10k
    8 projects | news.ycombinator.com | 9 Jun 2024
    I'm not familiar with the library either, but that seems to be a SQL expression executed on the database server. It's basically a copy-paste from the official documentation[0]. So no, not a lambda expression, because it's not computed in Python.

    As to the extra parentheses: I bet that's a force-of-habit thing to prevent potential issues. For example, it seems Sqlite requires them for exactly this kind of default definition[1]. It could also read to nasty bugs when the lack of parentheses in the resulting SQL could result in a different parse than expected[2]. Adding them just-to-be-safe isn't the worst thing to do.

    [0]: https://docs.sqlalchemy.org/en/13/core/metadata.html

    [1]: https://github.com/sqlalchemy/sqlalchemy/issues/4474

    [2]: https://github.com/sqlalchemy/sqlalchemy/issues/5344

  • How to scale a Django application to serve one million users?
    3 projects | dev.to | 23 May 2024
    Depending on the progress of your application, you may want to migrate to another framework faster than Django. Django’s ORM is not exactly the fastest out there, and, at the time of writing, it is not asynchronous. You might want to consider giving sqlalchemy, ponyorm a try.
  • Setting up a standalone SQLAlchemy 2.0 ORM application
    4 projects | dev.to | 20 May 2024
    SQLAlchemy is a widely used database toolkit for Python, providing a SQL abstraction layer covering most, if not all, your relational database needs. It's often used together with popular frameworks such as Flask and FastAPI, using either its Core library and/or its ORM components.
  • Python: A SQLAlchemy Wrapper Component That Works With Both Flask and FastAPI Frameworks
    3 projects | dev.to | 3 May 2024
    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.
  • Xz/liblzma: Bash-stage Obfuscation Explained
    1 project | news.ycombinator.com | 31 Mar 2024
    OK -

    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.

  • Introducing Flama for Robust Machine Learning APIs
    11 projects | dev.to | 18 Dec 2023
    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.
  • Alembic with Async SQLAlchemy
    1 project | dev.to | 12 Dec 2023
    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
    1 project | news.ycombinator.com | 28 Oct 2023

What are some alternatives?

When comparing pydantic and SQLAlchemy you can also consider the following projects:

Cerberus - Lightweight, extensible data validation library for Python

tortoise-orm - Familiar asyncio ORM for python, built with relations in mind

nexe - 🎉 create a single executable out of your node.js apps

PonyORM - Pony Object Relational Mapper

msgspec - A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

Peewee - a small, expressive orm -- supports postgresql, mysql, sqlite and cockroachdb

sqlmodel - SQL databases in Python, designed for simplicity, compatibility, and robustness.

Orator - The Orator ORM provides a simple yet beautiful ActiveRecord implementation.

mypy - Optional static typing for Python

prisma-client-py - Prisma Client Python is an auto-generated and fully type-safe database client designed for ease of use

pyparsing - Python library for creating PEG parsers [Moved to: https://github.com/pyparsing/pyparsing]

pyDAL - A pure Python Database Abstraction Layer

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