Adding templates for easier modification

This adds a template for the pytest and main script

puzzles/TEMPLATE_dayXX.py

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+"""
+TEMPLATE FOR ADVENT OF CODE
+
+REPLACE EXAMPLES:
+    * dayXX -> day01 
+    * Day XX -> Day 01
+
+Advent of Code 2021 - Day XX
+
+Run with:
+    python puzzles/dayXX.py inputs/dayXX.txt
+"""
+
+import pathlib
+import sys
+from typing import List, Tuple
+
+def part1(inputs: List[int]) -> int:
+    return False
+
+
+def part2(inputs: List[int]) -> int:
+    return False
+
+
+def parse(inputs: str) -> List[int]:
+    """Parse the input string"""
+    return [int(line) for line in inputs.split()]
+
+
+def solve(path: str) -> Tuple[int, int]:
+    """Solve the puzzle"""
+    puzzle_input = parse(pathlib.Path(path).read_text().strip())
+    part1_result = part1(puzzle_input)
+    part2_result = part2(puzzle_input)
+
+    return part1_result, part2_result
+
+
+def main() -> None:
+    for path in sys.argv[1:]:
+        print(f"Input File: {path}")
+
+        part1_result, part2_result = solve(path)
+
+        print(f"Part 1 Result: {part1_result}")
+        print(f"Part 2 Result: {part2_result}")

puzzles/TEMPLATE_test_dayXX.py

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+"""
+Replace `dayXX` with the day number (e.g. `day01`)
+
+Remove the 'Not implemented' marks when ready to run the test
+"""
+import pathlib
+import pytest
+import dayXX as aoc
+
+INPUTS_DIR = f"{pathlib.Path(__file__).parent.parent}/inputs"
+
+@pytest.fixture
+def example_data1():
+    input_path = f"{INPUTS_DIR}/dayXX-example1.txt"
+    return aoc.parse(pathlib.Path(input_path).read_text().strip())
+
+@pytest.fixture
+def example_data2():
+    input_path = f"{INPUTS_DIR}/dayXX-example2.txt"
+    return aoc.parse(pathlib.Path(input_path).read_text().strip())
+
+
+@pytest.fixture
+def dayXX_data():
+    input_path = f"{INPUTS_DIR}/dayXX.txt"
+    return aoc.parse(pathlib.Path(input_path).read_text().strip())
+
+
+@pytest.mark.skip(reason="Not implemented")
+def test_example1(example_data1):
+    assert aoc.part1(example_data) == ...
+
+
+@pytest.mark.skip(reason="Not implemented")
+def test_example2(example_data2):
+    assert aoc.part2(example_data) == ...
+
+
+@pytest.mark.skip(reason="Not implemented")
+def test_part1(day02_data):
+    assert aoc.part1(day02_data) == ...
+
+
+@pytest.mark.skip(reason="Not implemented")
+def test_part2(day02_data):
+    assert aoc.part2(day02_data) == ...