banteg

ChainSwap 1

$800k
July 2, 2021
Vulnerability: Smart contract bug
Note: Users reported lost funds, ChainSwap shut down all nodes and a fix was deployed within 30 minutes.
Source: https://chain-swap.medium.com/chainswap-post-mortem-and-compensation-plan-90cad50898ab

ChainSwap 2

$4.4M
July 10, 2021
Vulnerability: Smart contract bug

Engineering Compendium

Engineering Compendium
Certification is useless
Motivated teams:
Happiness Metric.
A Role-Based Empirical Process Modeling Environment.
Organizational Patterns of Agile Software
SIMULA 67 Common Base Language. Norwegian
Borland Software Craftsmanship: A New Look at Process,

Setup `pyenv`

Required dependencies

brew install pyenv
brew install zlib
brew install sqlite

Overview

When you're working on multiple coding projects, you might want a couple different version of Python and/or modules installed. That way you can keep each project in its own sandbox instead of trying to juggle multiple projects (each with different dependencies) on your system's version of Python. This intermediate guide covers one way to handle multiple Python versions and Python environments on your own (i.e., without a package manager like conda). See the Using the workflow section to view the end result.

Use cases

Working on 2+ projects that each have their own dependencies; e.g., a Python 2.7 project and a Python 3.6 project, or developing a module that needs to work across multiple versions of Python. It's not reasonable to uninstall/reinstall modules every time you want to switch environments.
If you want to execute code on the cloud, you can set up a Python environment that mirrors the relevant

	import argparse
	import json
	import logging
	import os
	import re
	import shutil
	from concurrent.futures import ProcessPoolExecutor, as_completed
	from dataclasses import dataclass
	from datetime import datetime
	from typing import Any, Callable, Dict, List, Literal, Optional, Tuple

	#!/usr/bin/python3

	# Required parameters:
	# @raycast.schemaVersion 1
	# @raycast.title Parse and Open
	# @raycast.mode silent

	# Optional parameters:
	# @raycast.icon 🔍
	# @raycast.packageName Developer Util

	Ledger (legacy): m/44'/60'/0'/{account_index} (eg. 44'/60'/0'/0, 44'/60'/0'/1, 44'/60'/0'/2, etc)
	ledger (live): m/44'/60'/{account_index}'/0/0 (eg. m/44'/60'/0'/0/0, m/44'/60'/1'/0/0, m/44'/60'/2'/0/0, etc)
	trezor: m/44'/60'/0'/0/{account_index} (eg. m/44'/60'/0'/0/0, m/44'/60'/0'/0/1, m/44'/60'/0'/0/2, etc)
	metamask: m/44'/60'/0'/0/{account_index} (eg. m/44'/60'/0'/0/0, m/44'/60'/0'/0/1, m/44'/60'/0'/0/2, etc)

	import brownie
	import eth_abi
	import pytest
	from hexbytes import HexBytes

	from flashprofits import weiroll


	@pytest.fixture
	def alice(accounts):

	#!python3

	'''
	Directions:

	- install yt-dlp via Pip (e.g. using (StaSh)[https://github.com/ywangd/stash] - `pip install yt-dlp`)
	- add this script as a Share extension through Settings -> Share Extension Shortcuts
	- while watching a video in the YouTube site or app, just share the video to Pythonista and select this script
	- the video will download, and when it's done you can share the video file itself with any app (e.g. VLC)
	Advanced usage:

	{
	"0x94f61134":"executeOrder(uint256)",
	"0xc5fee757":"executeOrder2(uint256)",
	"0xe9fca283":"buy(uint256,bytes32)",
	"0x0ed74c08":"func_0C2C()",
	"0xba485844":"func_0C0E()",
	"0x6971d64c":"func_0AB9()",
	"0xe31e2d6d":"func_0A93()",
	"0x304bac6f":"func_0A6E()",
	"0x70357e79":"func_08D3()",