python

Some interesting usage.

import json
from types import SimpleNamespace

data = '{"name": "John Smith", "hometown": {"name": "New York", "id": 123}}'

# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(data, object_hook=lambda d: SimpleNamespace(**d))
print(x.name, x.hometown.name, x.hometown.id)

Pipe

class Pipe(object):
    def __init__(self, func):
        self.func = func

    def __ror__(self, other):
        def generator():
            for obj in other:
                if obj is not None:
                    yield self.func(obj)
        return generator()

@Pipe
def even_filter(num):
    return num if num % 2 == 0 else None

@Pipe
def multiply_by_three(num):
    return num*3

@Pipe
def convert_to_string(num):
    return 'The Number: %s' % num

@Pipe
def echo(item):
    print item
    return item

def force(sqs):
    for item in sqs: pass

nums = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

force(nums | even_filter | multiply_by_three | convert_to_string | echo)

IP

hostname -i

python -c "import socket; print(socket.gethostbyname(socket.getfqdn(socket.gethostname())))"