ryantuck

# Stuff to do for Listmas app

- add index to present model to return sorted stuff
- test barebones socket.io setup
- 

ryantuck

Sensor Ideas for Kegbot

Gesture sensor - https://www.sparkfun.com/products/12787
Force sensitive resistor - https://www.sparkfun.com/products/9375
Humidity/temp sensor - https://www.sparkfun.com/products/8257
Microphone - https://www.sparkfun.com/products/9964
Photocell - https://www.sparkfun.com/products/9088
RFID reader - https://www.sparkfun.com/products/9963
Analog panel meter - https://www.sparkfun.com/products/10286
pH sensor - https://www.sparkfun.com/products/12872

ryantuck

install ruby when you don't do much ruby but want to download a gem

when gem install trello_cli yields permission errors:

ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.

you should download another ruby and use that as the default.

ryantuck

from passlib.hash import pbkdf2_sha256
import time

passwd = 'asdf'

for x in range(0,20):
    r = pow(2,x)
    t0 = time.time()
    h = pbkdf2_sha256.encrypt(passwd, rounds=r, salt_size=16)
    t1 = time.time()

ryantuck

import arrow
import pprint

start = '2015-01-01'
end = '2015-01-02'

s = arrow.get(start)
e = arrow.get(end)

print s

ryantuck

import pandas as pd

data = [
        [1,2],
        [3,4],
        [5,6]
        ]

cols = ['a','b']

ryantuck

def fn(*args, **kwargs):
    print kwargs
    print '{a} {b}'.format(**kwargs)

fn(a='blah', b='asdf')

ryantuck

import pandas as pd

data = [
        [1,2],
        [3,4],
        [4,5],
        [8,9]
        ]

df = pd.DataFrame(data, columns=['a','b'])

ryantuck

how to be leet with your keyboard remappings

0. install seil and karabiner.

1. change esc to shift + cmd in ~/Library/Application Support/Karabiner/private.xml:

<?xml version="1.0"?>
<root>

ryantuck

set up ansible to work on localhost

i've found this useful for debugging ansible modules and syntax without having to use VMs or test in dev environments.

install ansible

pip install ansible

make some relevant config files