mypy plugin for PynamoDB

Overview

pynamodb-mypy

A plugin for mypy which gives it deeper understanding of PynamoDB (beyond what's possible through type stubs).

Usage

Add it to the plugins option of the [mypy] section in your mypy.ini:

[mypy]
plugins = pynamodb_mypy

Nullable attributes

When declaring attributes with null=True, the value types would become optional. For example:

from pynamodb.attributes import UnicodeAttribute
from pynamodb.models import Model

class MyModel(Model):
  my_key = UnicodeAttribute()
  my_value = UnicodeAttribute(null=True)

...
my_model = MyModel.get('key')
if my_model.my_value.lower() == 'foo':  # error: Item "None" of "Optional[str]" has no attribute "lower"
   print("Value is foo")

would have to be changed to, e.g.:

if my_model.my_value and my_model.my_value.lower() == 'foo':
   print("Value is foo")
You might also like...
Poetry workspace plugin for Python monorepos.

poetry-workspace-plugin Poetry workspace plugin for Python monorepos. Inspired by Yarn Workspaces. Adds a new subcommand group, poetry workspace, whic

A plugin for poetry that allows you to execute scripts defined in your pyproject.toml, just like you can in npm or pipenv

poetry-exec-plugin A plugin for poetry that allows you to execute scripts defined in your pyproject.toml, just like you can in npm or pipenv Installat

tox-gh is a tox plugin which helps running tox on GitHub Actions with multiple different Python versions on multiple workers in parallel

tox-gh is a tox plugin which helps running tox on GitHub Actions with multiple different Python versions on multiple workers in parallel. This project is inspired by tox-travis.

A simple IDA Pro plugin to show all HexRays decompiler comments written by user
A simple IDA Pro plugin to show all HexRays decompiler comments written by user

XRaysComments A simple IDA Pro plugin to show all HexRays decompiler comments written by user Installation Copy the file xray_comments.py to the plugi

A Klipper plugin for accurate Z homing
A Klipper plugin for accurate Z homing

Stable Z Homing for Klipper A Klipper plugin for accurate Z homing This plugin provides a new G-code command, STABLE_Z_HOME, which homes Z repeatedly

A QGIS integration plugin for Kart repositories

QGIS Kart Plugin A plugin to work with Kart repositories Installation The Kart plugin is available in the QGIS Plugins server. To install the latest v

Tutor plugin for integration of Open edX with a Richie course catalog
Tutor plugin for integration of Open edX with a Richie course catalog

Richie plugin for Tutor This is a plugin to integrate Richie, the learning portal CMS, with Open edX. The integration takes the form of a Tutor plugin

HashDB Binary Ninja Plugin

HashDB Plugin (v0.1) Author: Vector 35 Inc Plugin for interacting with the OALABS HashDB service. Description: Plugin that can be used to lookup hashe

A NetBox Plugin that gives a UI for generating, comparing and deploying configurations to devices.

netbox_config_plugin - A plugin to generate, compare and deploy configurations This plugin allows you to execute your code to generate a config for a

Comments
  • Type-check Model.__init__

    Type-check Model.__init__

    • Reworked attribute initialization parsing. Results are now persisted in the model type's mypy metadata.
    • Implemented a signature hook for the model's initialization. Model initialization is now type-checked.
    • Implemented miscellaneous best practices: Black formatting, test coverage.
    • Added GitHub action to run tests.
    • Minimum Python version is now 3.8.
    opened by ikonst 0
Releases(v0.1.2)
  • v0.1.2(Oct 21, 2022)

    What's Changed

    • Support derived model initializers by @ikonst in https://github.com/pynamodb/pynamodb-mypy/pull/4

    Full Changelog: https://github.com/pynamodb/pynamodb-mypy/compare/v0.1.1...v0.1.2

    Source code(tar.gz)
    Source code(zip)
  • v0.1.1(Oct 18, 2022)

  • v0.1.0(Oct 18, 2022)

    What's Changed

    • Model.__init__ calls are now type-checked: attributes types will have to match and undefined attributes will not be allowed.
    • Lowest supported Python version is now 3.8

    Internals

    • Reworked attribute initialization parsing. Results are now persisted in the model type's mypy metadata.
    Source code(tar.gz)
    Source code(zip)
Calculate the efficient frontier

关于 代码主要参考Fábio Neves的文章,你可以在他的文章中找到一些细节性的解释

Wyman Lin 104 Nov 11, 2022
Function Plotter✨

Function-Plotter Build With : Python PyQt5 unittest matplotlib Getting Started This is an list of needed instructions to set up your project locally,

Ahmed Lotfy 3 Jan 06, 2022
En este repositorio realizaré la tarea del laberinto.

Laberinto Perfil de GitHub del autor de este proyecto: @jmedina28 En este repositorio queda resuelta la composición de un laberinto 5x5 con sus muros

Juan Medina 1 Dec 11, 2021
A rough GSL work DynSAGE of my graduation project

DynSAGE Codes w.r.t DynSAGE-Diffuse can be found in function apply_dyn_model_v2 of src/utils.py. The training entrance is Line 144 - 155 of src/main.p

Yuhan Wang 3 Mar 22, 2022
使用京东cookie一键生成所有退会链接

JDMemberCloseLinks 本项目旨在使用京东cookie一键生成所有退会链接

hyzaw 68 Jun 10, 2022
A refresher for PowerBI Desktop documents

PowerBI_Refresher-NPP Informació Per executar el programa s'ha de tenir instalat el python versio 3 o mes. Requeriments a requirements.txt. El fitxer

Nil Pujol 1 May 02, 2022
The Begin button and menu for the Meadows operating system. The start button for UNIX/Linux.

By: Seanpm2001, Meadows Et; Al. Top README.md Read this article in a different language Sorted by: A-Z Sorting options unavailable ( af Afrikaans Afri

Sean P. Myrick V19.1.7.2 4 Aug 28, 2022
Nick Craig-Wood's Website

Nick Craig-Wood's public website This directory tree is used to build all the different docs for Nick Craig-Wood's website. The content here is (c) Ni

Nick Craig-Wood 2 Sep 02, 2022
ChieriBot,词云API版,用于统计群友说过的怪话

wordCloud_API 词云API版,用于统计群友说过的怪话,基于wordCloud 消息储存在mysql数据库中.数据表结构见table.sql 为啥要做成API:这玩意太吃性能了,如果和Bot放在同一个服务器,可能会影响到bot的正常运行 你服务器性能够用的话就当我在放屁 依赖包 pip i

chinosk 7 Mar 20, 2022
Web UI for your scripts with execution management

Script-server is a Web UI for scripts. As an administrator, you add your existing scripts into Script server and other users would be ab

Iaroslav Shepilov 1.1k Jan 09, 2023
The mock Pokemon Environment I built in 2019 to study Reinforcement Learning + Pokemon

ghetto-pokemon-rl-environment ##NOT MAINTAINED! Fork and maintain yourself. Environment I made back in 2019 to use Pokemon to practice reinforcement l

2 Dec 09, 2021
Python 3.9.4 Graphics and Compute Shader Framework and Primitives with no external module dependencies

pyshader Python 3.9.4 Graphics and Compute Shader Framework and Primitives with no external module dependencies Fully programmable shader model (even

Alastair Cota 1 Jan 11, 2022
Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python

Scalene: a high-performance CPU, GPU and memory profiler for Python by Emery Berger, Sam Stern, and Juan Altmayer Pizzorno. Scalene community Slack Ab

PLASMA @ UMass 7k Dec 30, 2022
Exercicios de Python do Curso Em Video, apresentado por Gustavo Guanabara.

Exercicios Curso Em Video de Python Exercicios de Python do Curso Em Video, apresentado por Gustavo Guanabara. OBS.: Na data de postagem deste repo já

Lorenzo Ribeiro Varalo 0 Oct 21, 2021
Use `forge` and `cast` commands in Python scripts

foundrycli.py ( 🔥 , 🐍 ) foundrycli.py is a Python library I've made for personal use; now open source. It lets you access forge and cast CLIs from P

Zero Ekkusu 17 Jul 17, 2022
Discover and load entry points from installed packages

Entry points are a way for Python packages to advertise objects with some common interface. The most common examples are console_scripts entry points,

Thomas Kluyver 69 Jul 05, 2022
Distributed behavioral experiments

Autopilot Docs Paper Forum Hardware Autopilot is a Python framework for performing complex, hardware-intensive behavioral experiments with swarms of n

70 Dec 14, 2022
python package to showcase, test and build your own version of Pickhardt Payments

Pickhardt Payments Package The pickhardtpayments package is a collection of classes and interfaces that help you to test and implement your dialect of

Rene Pickhardt 37 Dec 18, 2022
Abilian Core: an enterprise application development platform based on the Flask micro-framework, the SQLAlchemy ORM

About Abilian Core is an enterprise application development platform based on the Flask micro-framework, the SQLAlchemy ORM, good intentions and best

Abilian open source projects 47 Apr 14, 2022
Hopefully the the next-generation backend server of bgm.tv

Hopefully the the next-generation backend server of bgm.tv

Bangumi 475 Jan 01, 2023