iexa

class Python < Formula
  desc "Interpreted, interactive, object-oriented programming language"
  homepage "https://www.python.org/"
  url "https://www.python.org/ftp/python/3.8.6/Python-3.8.6.tar.xz"
  sha256 "a9e0b79d27aa056eb9cce8d63a427b5f9bab1465dee3f942dcfdb25a82f4ab8a"
  head "https://github.com/python/cpython.git"
  license "Python-2.0"
  revision 1
  
  bottle do

aunyks

import hashlib as hasher
import datetime as date

# Define what a Snakecoin block is
class Block:
  def __init__(self, index, timestamp, data, previous_hash):
    self.index = index
    self.timestamp = timestamp
    self.data = data
    self.previous_hash = previous_hash

simonw

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

armgilles

mhoff

def dmerge(x, (k,v)):
    if k in x:
        dmerge(x[k], v.items()[0])
    else:
        x[k] = v 
    return x

def hdict_from_dict(src):
    return reduce(lambda x, y: dmerge(x, y), [hdict(k, v).items()[0] for k, v in src.items()], {})

luke14free

#!/usr/bin/env python

from type_checked_entities import entity_factory

Giraffe = entity_factory(  # let's define what is a giraffe!
    "giraffe",
    name=str,  # my name is a string
    age=float,  # my age is an int
    eats=object,  # I eat pretty much everything.
)

gaearon

// connect() is a function that injects Redux-related props into your component.
// You can inject data and callbacks that change that data by dispatching actions.
function connect(mapStateToProps, mapDispatchToProps) {
  // It lets us inject component as the last step so people can use it as a decorator.
  // Generally you don't need to worry about it.
  return function (WrappedComponent) {
    // It returns a component
    return class extends React.Component {
      render() {
        return (

justmarkham

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

maurisvh

#!/usr/bin/python

import numpy
import pyaudio
import re
import sys

WIDTH = 79
BOOST = 1.0