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import socket
from time import sleep

def is_open(ip,port,timeout=5):
    socket.setdefaulttimeout(timeout)
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    try:
      s.connect((ip, int(port)))
      s.shutdown(2)

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install requirements with pipenv:
pipenv install -r requirements.txt

run python file in pipenv:
pipenv run python file.py

add manager so you can use migrations (using alembic)
initialize migration:
python manage.py db init

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def titleizer(name)
  name.split.map{ |part| part.split("-").map{ |p| p.capitalize }.join("-") }.join(" ")
end

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public static string NumberToWords(long number)
        {
            if (number == 0)
                return "zero";

            if (number < 0)
                return "minus " + NumberToWords(Math.Abs(number));

            string words = "";

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#STEP 1

CREATE EXTENSION IF NOT EXISTS hstore;

CREATE SCHEMA audit;
REVOKE ALL ON SCHEMA audit FROM public;

COMMENT ON SCHEMA audit IS 'Out-of-table audit/history logging tables and trigger functions';

--

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1. Carefully do the official [tutorial][].
2. Read the official guide to [main concepts][].
3. Read the official [advanced guides][].
4. Watch [building React from scratch][] to get an idea of how React actually works (this covers the "stack" reconciler which was used in React 15 and earlier).
5. Go through the [React "fiber" architecture][] which is the default reconciler since React 16.
6. Go crazy, build your own projects, and stop doing React tutorials!

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run go docs locally:
godoc -http=:6060

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ping a group of servers called taapp:
ansible -i hosts taapp -m ping

run command, load from inventory:
ansible -i inventory all -m command -a "iptables -F" --become

send "ls" command to group taapp:
ansible taapp -m command -a "ls"

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npx create-react-app app-name --template typescript

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from datetime import date
from dateutil.relativedelta import relativedelta
import numpy as np

class DynamicHorizontalContainmentField(QCAlgorithm):

    def Initialize(self):
        six_months_ago = date.today() + relativedelta(months=-6)
        self.SetStartDate(six_months_ago)  # Set Start Date
        self.SetEndDate(date.today())