gmolveau

# please use python3 and flask > 1.0
# run this with : python3 flask_separate_thread.py
# https://web.archive.org/web/20210329135424/https://pymotw.com/3/threading/
# https://web.archive.org/web/20210329135553/https://eli.thegreenplace.net/2011/08/22/how-not-to-set-a-timeout-on-a-computation-in-python
import time
import threading

from flask import Flask

app = Flask(__name__)

sielicki

#!/usr/bin/env python3
import z3
import pprint

# 9x9 matrix of integer variables
X = [ [ z3.Int("x_%s_%s" % (i+1, j+1)) for j in range(9) ]
      for i in range(9) ]

# each cell contains a value in {1, ..., 9}
cells_c  = [ z3.And(1 <= X[i][j], X[i][j] <= 9)

shakna-israel

Obfuscating Python

Obfuscation isn't difficult in most programming languages. It's why we have "good practices" because it is so easy to hide what you mean in badly written code.

Obfuscation tends to be even easier in dynamic languages because of how forgiving they tend to be - and because they tend to give you direct access to the environment so that you can manipulate it.

Today, for fun, I'm going to obfuscate this code:

def _(n):

if n <= 0:

MIvanchev

Running Windows software on the Raspberry Pi (and other ARM devices) with Wine

Contents

• Introduction
• Configuring a 3G/1G VM split (32-bit distros only)
• Installing Wine
  • Building Wine
• Running Windows software
• Build using Winelib

trishmapow

float Q_rsqrt( float number )
{
	long i;
	float x2, y;
	const float threehalfs = 1.5F;

	x2 = number * 0.5F;
	y  = number;
	i  = * ( long * ) &y;                       // Store physical representation of bits
	i  = 0x5f3759df - ( i >> 1 );               // Make an initial guess

tegila

## Fetch source code from firmware and linux
git clone --depth 1 https://github.com/raspberrypi/firmware
git clone --depth=1 -b rpi-3.19.y --single-branch https://github.com/raspberrypi/linux

## Update firmware files
sudo mkdir /boot/backup
sudo cp /boot/* /boot/backup/
sudo cp -r firmware/modules /lib
sudo cp -r src/firmware/boot /
sudo cp firmware/extra/Module7.symvers linux/Module.symvers

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname