brainix

rajiv.shah@C02FK16KMD6V vh1 % git push heroku master
Enumerating objects: 7, done.
Counting objects: 100% (7/7), done.
Delta compression using up to 16 threads
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 4.30 KiB | 244.00 KiB/s, done.
Total 4 (delta 3), reused 0 (delta 0), pack-reused 0
remote: Compressing source files... done.
remote: Building source:
remote: 

brainix

{"feed":{"title":"Top Music Videos","id":"https://rss.itunes.apple.com/api/v1/us/music-videos/top-music-videos/all/200/explicit.json","author":{"name":"iTunes Store","uri":"http://wwww.apple.com/us/itunes/"},"links":[{"self":"https://rss.itunes.apple.com/api/v1/us/music-videos/top-music-videos/all/200/explicit.json"},{"alternate":"https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewTop?genreId=34\u0026popId=5"}],"copyright":"Copyright © 2018 Apple Inc. Все права защищены.","country":"us","icon":"http://itunes.apple.com/favicon.ico","updated":"2021-05-25T17:11:53.000-07:00","results":[{"artistName":"BTS","id":"1568538211","releaseDate":"2021-05-21","name":"Butter","kind":"musicVideo","copyright":"℗ 2021 BIGHIT MUSIC / HYBE","artistId":"883131348","artistUrl":"https://music.apple.com/us/artist/bts/883131348","artworkUrl100":"https://is5-ssl.mzstatic.com/image/thumb/Features125/v4/10/e1/ca/10e1ca24-34f4-d46b-55c8-ad02684af94d/mza_10814629250342140759.jpg/200x200mv.png","genres":[{"genreId":"1686","name":"K-Po

brainix

import collections


def flatten(dict_, *, separator='.', raise_on_collision=True):
    flattened = {}
    for key, value in dict_.items():
        if isinstance(value, collections.abc.Mapping):
            tmp_dict = flatten(value)
            for tmp_key, tmp_value in tmp_dict.items():
                tmp_key = separator.join((key, tmp_key))

brainix

# https://twitter.com/brainix/status/1358343863354552324

def runlength_encoding(s):
    if s:
        count = 1
        for c1, c2 in zip(s[:-1], s[1:]):
            if c1 == c2:
                count += 1
            else:
                yield c1, count

brainix

>>> def hanoi(num, from_, using, to):
...      if num:
...          yield from hanoi(num-1, from_, to, using)
...          yield f'move disc {num} from peg {from_} to peg {to}'
...          yield from hanoi(num-1, using, from_, to)
... 
>>> for move in hanoi(4, 1, 2, 3):
...     print(move)
... 
move disc 1 from peg 1 to peg 2

brainix

>>> def naturals(start):
...     yield start
...     yield from naturals(start+1)
...
>>> def sieve(prev_sieve):
...     prime = next(prev_sieve)
...     yield prime
...     yield from (num for num in prev_sieve if num % prime != 0)
... 
>>> s = sieve(naturals(2))

brainix

>>> j = 256
>>> k = 256
>>> j is k
True
>>> j = 257
>>> k = 257
>>> j is k
False
>>> j, k = 257, 257
>>> j is k

brainix

import random


def assertion_sort(list_):
    try:
        assert all(x <= y for x, y in zip(list_, list_[1:]))
    except AssertionError:
        random.shuffle(list_)
        assertion_sort(list_)

brainix

#!/usr/bin/env python3


import sys


# Map the uppercase letters forwards:
_MAPPING = {
    'Q': 'P',
    'W': 'O',

brainix

<?xml version="1.0" encoding="utf-8"?>

	<feed xmlns:im="http://itunes.apple.com/rss" xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
		<id>https://itunes.apple.com/us/rss/topmusicvideos/limit=200/explicit=true/xml</id><title>iTunes Store: Top Music Videos</title><updated>2016-06-22T20:09:58-07:00</updated><link rel="alternate" type="text/html" href="https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewTop?cc=us&amp;id=1&amp;popId=5"/><link rel="self" href="https://itunes.apple.com/us/rss/topmusicvideos/limit=200/explicit=true/xml"/><icon>http://itunes.apple.com/favicon.ico</icon><author><name>iTunes Store</name><uri>http://www.apple.com/itunes/</uri></author><rights>Copyright 2008 Apple Inc.</rights>
		
			<entry>
				<updated>2016-06-22T20:09:58-07:00</updated>
				
					<id im:id="1125405366">https://itunes.apple.com/us/music-video/this-is-what-you-came-for/id1125405366?uo=2</id>