6 ms·
Here’s what I got from ChatGPT class InfiniteArray: def __init__(self, generator_function): self.generator_function = generator_function self.items =
by axpy906 4y ago
Here’s what I got from ChatGPT
class InfiniteArray:
def __init__(self, generator_function):
self.generator_function = generator_function
self.items = []
self.index = 0
def __getitem__(self, index):
# if the index is out of bounds, generate more items
while index >= len(self.items):
self.items.append(self.generator_function())
return self.items[index]
# example generator function that generates capital cities
def world_capital_cities():
# list of capital cities
capital_cities = ['Paris', 'London', 'Tokyo', 'New Delhi', 'Beijing']
# generate capital cities in a cyclic manner
for i in itertools.cycle(range(len(capital_cities))):
yield capital_cities[i]
# create an infinite array object with the world_capital_cities generator function
capital_cities_array = InfiniteArray(world_capital_cities)
# access the 10th item in the array
print(capital_cities_array[10]) # prints 'New Delhi'
# example generator function that generates concatenation of two lists
def soft_sweet():
# list of soft items
soft = ['cloud', 'pillow', 'fluffy']
# list of sweet items
sweet = ['ice cream', 'candy', 'bunny']
# generate concatenation of soft and sweet in a cyclic manner
for i in itertools.cycle(range(len(soft))):
yield soft[i] + ' ' + sweet[i]
# create an infinite array object with the soft_sweet generator function
soft_sweet_array = InfiniteArray(soft_sweet)
# access the 5th item in the array
print(soft_sweet_array[5]) # prints 'pillow candy'
- axpy906 4y ago> This implementation uses the __getitem__ magic method to override the behavior of the square bracket operator ([]) for the InfiniteArray class. The __getitem__ method generates more items using the generator function provided in the constructor if the requested index is out of bounds. This allows the array to appear infinite to the user. Note that this implementation is just an example and may not be suitable for all use cases. For example, it does not handle negative indices or slice operations. You may need to modify the implementation to suit your specific needs.