Loopy

loopy.py

items = ['a', 'b', 'c']

# A
for x in items:
  print(x)

# B
my_iterator = iter(items)
for y in my_iterator:
  print(y)

# C
list_iterator = items.__iter__()
for z in list_iterator:
  print(z)

# D
for i in range(len(items)):
  print(items[i])

# D2...
my_range = range(len(items))
range_iterator = my_range.__iter__()
for j in range_iterator:
  print(items[j])

# E
my_iterator = iter(items)
for i_dont_care in range(len(items)):
  print(next(my_iterator))

loopy.rb

# loop do
#   puts "Forever..."
# end

# A
x = 0
until x == 3 do
  puts x
  x += 1
end

# B
for i in 0..3 do
  puts i
end

# C
items = [0, 1, 2, 3]
for el in items do
  puts el
end

# D
items.each do |el|
  puts el
end

# E
4.times do |i|
  puts i
end