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# -*- coding: utf-8 -*-
import os
from abc import ABC
from typing import Generator, Any, Iterator, Dict, TypeVar, Generic
T = TypeVar("T")
I = TypeVar("I")
class BaseAssignment(Generic[T, I], ABC):
example_result: T = NotImplemented
example_kwargs: Dict = {}
def __init__(self, path):
self.path = path
def __str__(self):
return f"{self.__module__}.{self.__class__.__name__}"
def parse_item(self, item: str) -> I:
return item
@property
def part(self) -> int:
return 1 if self.__class__.__name__.endswith("One") else 2
def read_input(self, example=False) -> Iterator[I]:
file = f"{self.path}/input.txt"
if example or not os.path.isfile(file):
for file in [
f"{self.path}/example_part_{self.part}.txt",
f"{self.path}/example.txt",
]:
if os.path.exists(file):
break
with open(file, "r") as input_file:
for line in input_file.readlines():
yield self.parse_item(line.strip("\n"))
def run(self, input: Iterator[I]) -> T:
raise NotImplementedError("Please implement run")
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