Tide Times for Dun Laoghaire

ttdl.py

#!/usr/bin/env python
#
# ttdl -- tide times for dun laoghaire
#
import certifi
import urllib3
import re

http = urllib3.PoolManager(cert_reqs='CERT_REQUIRED', ca_certs=certifi.where())
r = http.request('GET', 'https://www.tidetimes.org.uk/deal-tide-times.js')
if r.status == 200:
    stuff = re.findall(r'(Low|High)|(\d+:\d+)|(\d+.\d+m)',
                       r.data.decode('utf-8'))
    # stuff is an array of tuples, convert to list and filter blanks
    tides = list(filter(lambda i: i != '', [x for el in stuff for x in el]))
    for i in range(0, int(len(tides) / 3)):
        inx = i * 3
        (tide, time, height) = tides[inx:inx + 3]
        print("%s tide is at %s (%s)" % (tide, time, height))

ttdl.rb

#!/usr/bin/env ruby
#
# ttdl -- tide times for dun laoghaire
#

require 'open-uri'

script = open('https://www.tidetimes.org.uk/deal-tide-times.js').read
regex = /(Low|High)|(\d+:\d+)|(\d+.\d+m)/

tides = script.scan(regex).flatten.reject(&:nil?)

0...(tides.count / 3).times do |i|
  inx = i * 3
  tide, time, height = tides[inx..inx + 2]
  puts "#{tide} tide is at #{time} (#{height})"
end