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@kieransnapes
kieransnapes / xero_oath2_django.py
Last active January 22, 2024 13:18
xero oauth2 with django
import os
from functools import wraps
from django.urls import reverse
from django.shortcuts import redirect
from xero_python.api_client import ApiClient, serialize
from xero_python.api_client.configuration import Configuration
from xero_python.api_client.oauth2 import OAuth2Token
//
// ContentView.swift
// Widgets
//
// Created by Kyle Halevi on 7/3/20.
//
import SwiftUI
struct Widget: View {
@jsomers
jsomers / websockets.md
Created September 27, 2018 12:50
Using websockets to easily build GUIs for Python programs

Using websockets to easily build GUIs for Python programs

I recently built a small agent-based model using Python and wanted to visualize the model in action. But as much as Python is an ideal tool for scientific computation (numpy, scipy, matplotlib), it's not as good for dynamic visualization (pygame?).

You know what's a very mature and flexible tool for drawing graphics? The DOM! For simple graphics you can use HTML and CSS; for more complicated stuff you can use Canvas, SVG, or WebGL. There are countless frameworks, libraries, and tutorials to help you draw exactly what you need. In my case, this was the animation I wanted:

high-priority

(Each row represents a "worker" in my model, and each rectangle represents a "task.")

@simonw
simonw / recover_source_code.md
Last active January 16, 2024 08:13
How to recover lost Python source code if it's still resident in-memory

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb
@dnmellen
dnmellen / models.py
Last active October 3, 2021 04:14
DynamoDB mixin for Django models: Mix Django fields and DynamoDB fields in your models!
import uuid
import boto3
from decimal import Decimal
from functools import partial
from django.db import models
from django.conf import settings
class UUIDModel(models.Model):
"""
@dnmellen
dnmellen / worker_function.py
Created January 31, 2017 15:07
AWS Lambda function that performs an ssh command through a bastion server to another server. The function will be triggered by a Cloudwatch Alarm
import json
import boto3
import paramiko
def worker_handler(event, context):
ALLOWED_HOSTS = [
'host1',
'host2,
body {
color: #212121;
font-family: "Helvetica Neue", "Calibri Light", Roboto, sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
letter-spacing: 0.02em;
}

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.


Effective Engineer - Notes

What's an Effective Engineer?

@hans2103
hans2103 / server.badbots
Last active April 7, 2024 14:28
NGINX to block bad bots. (add Twenga|TwengaBot if you want to exclude them too)
if ($http_user_agent ~* (360Spider|80legs.com|Abonti|AcoonBot|Acunetix|adbeat_bot|AddThis.com|adidxbot|ADmantX|AhrefsBot|AngloINFO|Antelope|Applebot|BaiduSpider|BeetleBot|billigerbot|binlar|bitlybot|BlackWidow|BLP_bbot|BoardReader|Bolt\ 0|BOT\ for\ JCE|Bot\ mailto\:craftbot@yahoo\.com|casper|CazoodleBot|CCBot|checkprivacy|ChinaClaw|chromeframe|Clerkbot|Cliqzbot|clshttp|CommonCrawler|comodo|CPython|crawler4j|Crawlera|CRAZYWEBCRAWLER|Curious|Curl|Custo|CWS_proxy|Default\ Browser\ 0|diavol|DigExt|Digincore|DIIbot|discobot|DISCo|DoCoMo|DotBot|Download\ Demon|DTS.Agent|EasouSpider|eCatch|ecxi|EirGrabber|Elmer|EmailCollector|EmailSiphon|EmailWolf|Exabot|ExaleadCloudView|ExpertSearchSpider|ExpertSearch|Express\ WebPictures|ExtractorPro|extract|EyeNetIE|Ezooms|F2S|FastSeek|feedfinder|FeedlyBot|FHscan|finbot|Flamingo_SearchEngine|FlappyBot|FlashGet|flicky|Flipboard|g00g1e|Genieo|genieo|GetRight|GetWeb\!|GigablastOpenSource|GozaikBot|Go\!Zilla|Go\-Ahead\-Got\-It|GrabNet|grab|Grafula|GrapeshotCrawler|GTB5|GT\:\:WWW|Guzz

How to setup AWS lambda function to talk to the internet and VPC

I'm going to walk you through the steps for setting up a AWS Lambda to talk to the internet and a VPC. Let's dive in.

So it might be really unintuitive at first but lambda functions have three states.

  1. No VPC, where it can talk openly to the web, but can't talk to any of your AWS services.
  2. VPC, the default setting where the lambda function can talk to your AWS services but can't talk to the web.
  3. VPC with NAT, The best of both worlds, AWS services and web.