kayehld

from concurrent.futures import ThreadPoolExecutor

# create our url list from targeted hosts and paths
hosts = ['http://localhost/', 'http://example.com/']
paths = ['robots.txt', 'does_not_exist.txt']
urls = [host + path for host in hosts for path in paths]
# via list comprehension, urls now contains:
# [
#   'http://localhost/robots.txt',
#   'http://localhost/does_not_exist.txt',

kayehld

import functools

print = functools.partial(print, flush=True)


# request a url and return a (url, status code) tuple
def request(url):
    try:
        response = http.request('GET', url)
        print(url, response.status)

kayehld

# configuration
THREADS = 10
TIMEOUT = 15
RETRIES = 1
REDIRECTS = 0

# init our timeout/retry objects
timeout = urllib3.util.Timeout(connect=TIMEOUT, read=TIMEOUT)
retries = urllib3.util.Retry(connect=RETRIES, read=RETRIES, redirect=REDIRECTS)

kayehld

for (x, y, z) in itertools.combinations_with_replacement(range(3), 3):
    print(x, y, z)

# outputs:
# 0 0 0
# 0 0 1
# 0 0 2
# 0 1 1
# 0 1 2
# 0 2 2

kayehld

for c in itertools.combinations_with_replacement([1, 2, 3], 2):
    print(c)

# outputs:
# (1, 1) 
# (1, 2)
# (1, 3)
# (2, 2)
# (2, 3)
# (3, 3)

kayehld

# for length of 3
for c in itertools.combinations([1, 2, 3], 3):
    print(c)

# outputs:
# (1, 2, 3)
# ...since there is only one 3-length combination of [1, 2, 3]

# for length of 2
for c in itertools.combinations([1, 2, 3], 2):

kayehld

for p in itertools.permutations('ABC'):
    print(p)

# outputs:
# ('A', 'B', 'C')
# ('A', 'C', 'B')
# ('B', 'A', 'C')
# ('B', 'C', 'A')
# ('C', 'A', 'B')
# ('C', 'B', 'A')

kayehld

for p in itertools.permutations([1, 2, 3], 2):
    print(p)

# outputs:
# (1, 2)
# (1, 3)
# (2, 1)
# (2, 3)
# (3, 1)
# (3, 2)

kayehld

for p in itertools.permutations([1, 2, 3]):
    print(p)

# outputs:
# (1, 2, 3)
# (1, 3, 2)
# (2, 1, 3)
# (2, 3, 1)
# (3, 1, 2)
# (3, 2, 1)

kayehld

<?php

function heart($v) {
  $heart = ''; //string representing our heart
  $n = intdiv($v, 2); //heart number

  //1st row: spacing, top of the heart, cleft, top of the heart, spacing
  $heart = str_repeat(' ', $n) . str_repeat('*', $v) . str_repeat(' ', $v-2) . str_repeat('*', $v) . "\n";

  //expanding section