jacksmith15

#!/usr/bin/env python


import json
import sys
import typing
from pathlib import Path
from types import NoneType

jacksmith15

Middleware factory for using a single transaction per request. Transactions are only started if a downstream handler requests one. If a transaction is started by the handler, it is automatically committed or rolled back once the handler completes.

Usage:

Enable the middleware:

app.use(makeDatabaseTransactionMiddleware(knex));

jacksmith15

Python Dependency Management

Below is a very rough-and-ready summary of Python dependency management tools I have used.

An (incomplete) list of important factors of dependency management tooling:

• Reproducibility - will committed files allow us to exactly reproduce an environment across dev machines, CI and production environments
• Speed of resolution - how fast can a complete environment be resolved given a set of primary dependencies
• Ease of management - how easy is it to upgrade one/all packages? how easy is it to add a new package? how easy is it to inspect the dependency graph?
• Availability of packages - can I get the packages I need?

jacksmith15

import asyncio
from typing import TYPE_CHECKING

from aiohttp.client import ClientSession
from elasticsearch import AsyncElasticsearch
from elasticsearch.connection_pool import DummyConnectionPool, EmptyConnectionPool

if TYPE_CHECKING:
    from aiohttp.client_reqrep import ConnectionKey

jacksmith15

Logs

Stream logs from Elasticsearch to stdout.

Requirements

Python 3.8 or higher

pip install python-dateutil==2.8.2 fire==0.4.0 requests==2.26.0

jacksmith15

K3s for local testing/CI

The following is a docker-compose k3s configuration, with a script to pre-populate images in the cluster, allowing complete tear-down and rebuild very quickly.

This could be useful for spinning up a small cluster during CI jobs, as it allows the images to be cached rather than pulled into the newly built cluster for each and every job.

Results from local testing:

| | No preloaded images | Preloaded images |

jacksmith15

OpenAPI Combinator

Web app which combines OpenAPI specifications into a single specification.

Requirements:

fastapi ~= 0.63.0
httpx ~= 0.16.1
aiocache ~= 0.11.1

jacksmith15

"""Searchable dictionary, allowing fast substring matching on keys.

Requires:
- Python 3.8 or greater
- pytrie 0.4.0 or greater

Example:

>>> dictionary = SearchableDict({
...     "foo bar": 1,

jacksmith15

"""This module implements a parser for query strings encoded with Ruby RestClient:

https://www.rubydoc.info/gems/rest-client/RestClient%2FUtils.encode_query_string
"""
import re
from urllib.parse import unquote


class ParameterTypeError(Exception):
    """Exception for mixed parameter types."""

jacksmith15

"""A set of helpers for reversing urls, similar to Django ``reverse``.

Usage:

.. code:: python

    @router.get("/class/{class_id}")
    async def get_class(request: Request, class_id: int = Path(...)):
        student_route = get_route(request.app, "list_students")
        class_students_url = URLFactory(student_route).get_path(class_id=class_id)