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#include <Python.h>

/***********************************************************/
/* define logging function and logtypes for python.logging */
/* by H.Dickten 2014                                       */
/***********************************************************/
enum logtypes {info, warning, error, debug};

static void log_msg(int type, char *msg)
{

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Installing Python 3.7 from source on Ubuntu 18.04

# update system
sudo apt update && sudo apt upgrade -y

# install build tools and python prerequisites
sudo apt install build-essential libssl-dev zlib1g-dev libncurses5-dev libncursesw5-dev libreadline-dev libsqlite3-dev libgdbm-dev libdb5.3-dev libbz2-dev libexpat1-dev liblzma-dev tk-dev libffi-dev

# download and extract python

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My thoughts on MessagePack

Hi. My name is Sadayuki "Sada" Furuhashi. I am the author of the MessagePack serialization format as well as its implementation in C/C++/Ruby.

Recently, MessagePack made it to the front page of Hacker News with this blog entry by Olaf, the creator of the Facebook game ZeroPilot. In the comment thread, there were several criticisms for the blog post as well as MessagePack itself, and I thought this was a good opportunity for me to address the questions and share my thoughts.

My high-level response to the comments

To the best of my understanding, roughly speaking, the criticisms fell into the following two categories.

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"""
Compare speed of a cython wrapper vs a cffi wrapper to the same underlying
C-code with a fast function and a longer-running function.

This should run anywhere that has cffi and cython installed.

Ouput on my machine with python2.7:


brentp@liefless:/tmp$ python compare-wrappers.py

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#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/resource.h>

double get_time()
{
    struct timeval t;
    struct timezone tzp;
    gettimeofday(&t, &tzp);

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Introduction

A few weeks ago I stumbled across a thread on hacker news that referenced the Matasano Cyrpto Challenge. I find myself unable to resist this type of problem so I decided to make an attempt. It teaches you to find vulnerabilities in crypto systems by starting with simple attacks and building up to more complex ones. Early on in the project it has you start breaking ecryption that uses the AES cypher in ECB mode. It specifically asks you not to implement the cypher yourself but to use a known-correct implementation like OpenSSL.

I tend to try to solve programming challenges in python, because the coding goes much more quickly. I checked the pyOpenSSL docs (which I have used before) to determine the call for encryption in ECB mode.

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Cryptographic Best Practices

Putting cryptographic primitives together is a lot like putting a jigsaw puzzle together, where all the pieces are cut exactly the same way, but there is only one correct solution. Thankfully, there are some projects out there that are working hard to make sure developers are getting it right.

The following advice comes from years of research from leading security researchers, developers, and cryptographers. This Gist was [forked from Thomas Ptacek's Gist][1] to be more readable. Additions have been added from

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How to Setup emacs irony-mode in Ubuntu-12.04

I recently found a nice emacs-mode, [irony-mode], which can be used with [company-mode], [flycheck-mode], and [eldoc-mode]. It works nicely with CMake-based projects. The document contains a list of instructions for setting things up. I assume that you're using a fresh-installed Ubuntu-12.04.5 (64-bit). It uses [Lean theorem prover][lean] as an example project.

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# aproducer.py
#
# Async Producer-consumer problem.
# Challenge: How to implement the same functionality, but no threads.

import time
from collections import deque
import heapq

class Scheduler:

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Conquering Kubernetes with Emacs

Specific Annoying workflow

Listing pods with kubectl get pods, then select a pod name and copy paste it into kubectl logs [pod name]

Why?

• I want to streamline my workflow and stop using the terminal
• learn more about kubernetes
• main kubernetes extension for Emacs out there is greedy for permissions