okeyokoro

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

okeyokoro

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start
sudo usermod -a -G docker ec2-user

okeyokoro

import macros

proc typeName(head: NimNode): NimNode =
  if head.len == 0: head else: head[1]

proc baseName(head: NimNode): NimNode =
  if head.len == 0: newIdentNode("RootObj") else: head[2]

proc isObjectDef(head: NimNode): bool =
  head.len == 0 or head[2].kind == nnkIdent

okeyokoro

sudo yum install gcc python27 python27-devel postgresql-devel
sudo curl https://bootstrap.pypa.io/ez_setup.py -o - | sudo python27
sudo /usr/bin/easy_install-2.7 pip
sudo pip2.7 install psycopg2

okeyokoro

class conduit(object):
    def __init__(self, iterator):
        self.iterator = iterator

    def filter(self, predicate):
        return conduit(itertools.ifilter(predicate, self.iterator))

    def map(self, func):
        return conduit(itertools.imap(func, self.iterator))

okeyokoro

"""
Some python code for
Markov Chain Monte Carlo and Gibs sampling
by Bruce Walsh
"""


import numpy as np
import numpy.linalg as npla