MichaelDrogalis

I've been working with Apache Kafka for over 7 years. I inevitably find myself doing the same set of activities while I'm developing or working with someone else's system. Here's a set of Kafka productivity hacks for doing a few things way faster than you're probably doing them now. 🔥

• Show me all my Kafka topics and their partitions, replicas, and consumers
• Show me the contents of a topic
• Create a Kafka topic
• Produce messages to a Kafka topic
• Validate the schema of messages before producing to a topic
• Do all of this at a distance

Get the tools

cwgem

Introduction

Python's tarfile documentation leaves the following nasty warning:

Warning Never extract archives from untrusted sources without prior inspection. It is possible that files are created outside of path, e.g. members that have absolute filenames starting with "/" or filenames with two dots "..".

Let's see what that exactly means.

mrcfps

from __future__ import print_function

import platform
import sys
import threading
import time


class UnsyncedBankAccount(object):
    """Bank account with no synchronization lock, prone to race condition."""

imbilltucker

Things I wish I knew when starting python
improve the basic interpreter

PYTHONSTARTUP is an environment variable you can use to fix the command prompt, i.e. provide autocomplete via tab, and suggestions.

    set $PYTHONSTARTUP=~/.pythonstartup in .bashrc
        export PYTHONSTARTUP=~/.pythonstartup
        turn off creation of .pyc files
            PYTHONDONTWRITEBYTECODE=1 

monkut

def valid_date_type(arg_date_str):
    """custom argparse *date* type for user dates values given from the command line"""
    try:
        return datetime.datetime.strptime(arg_date_str, "%Y-%m-%d")
    except ValueError:
        msg = "Given Date ({0}) not valid! Expected format, YYYY-MM-DD!".format(arg_date_str)
        raise argparse.ArgumentTypeError(msg)
        
def valid_datetime_type(arg_datetime_str):
    """custom argparse type for user datetime values given from the command line"""

mkocikowski

This can be used to daemonize anything that would normally run in the foreground; I picked Redis. Put this in /etc/systemd/system/redis.service:

[Unit]
Description=Redis
After=syslog.target

[Service]
ExecStart=/usr/local/bin/redis-server /etc/redis/redis.conf
RestartSec=5s

epicserve

from django.core.management.base import BaseCommand
from mymodule import main
import logging


class Command(BaseCommand):
    help = 'Do foo'

    def handle(self, *args, **options):

gnarf

Install

Either copy the aliases from the .gitconfig or run the commands in add-pr-alias.sh

Usage

Easily checkout local copies of pull requests from remotes:

• git pr 4 - creates local branch pr/4 from the github upstream(if it exists) or origin remote and checks it out
• git pr 4 someremote - creates local branch pr/4 from someremote remote and checks it out

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

tdd

# Put this in your ~/.gitconfig or ~/.config/git/config
# Windows users: "~" is your profile's home directory, e.g. C:\Users\<YourName>
[user]
  name = Your Full Name
  email = your@email.tld
[color]
  # Enable colors in color-supporting terminals
  ui = auto
[alias]
  # List available aliases