move from pip-compile to poetry (#70)

* move from pip-compile to poetry

* fix python-version

* update actions; cache poetry deps

* add poetry.lock

* restructure ci workflow

based on https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#caching-packages

* remove packages line

* forgot to convert tox.ini

* bring readme up-to-date

* add missing package

Author: mattnworb

.github/workflows/ci.yaml

@@ -4,20 +4,18 @@ on: [push, pull_request]
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v2
-      with:
-        python-version: 3.9
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install tox==3.20.1
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: tox
-      run: |
-        tox
+      - uses: actions/checkout@v4
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+          cache: "poetry"
+      - run: poetry install
+      - name: tox
+        run: |
+          poetry run tox

README.md

@@ -1,11 +1,19 @@
 # advent-of-code
 
+## Running
+
 To run the problem for a day, run the Python module like
 
 ```sh
-python -m y2020.problem01
+poetry run python -m y2020.problem01
 ```
 
+The solution code generally has no dependencies outside of the standard library
+but for tests, formatting etc I'm using [poetry](https://python-poetry.org/) to
+manage dependencies.
+
+## Setting up new problem
+
 To generate code for a new problem/day from a template, run:
 
 ```sh
@@ -14,8 +22,10 @@ To generate code for a new problem/day from a template, run:
 
 This will create files in a directory named `y$YEAR/$DAY`.
 
+## Tests
+
 Run the tests (yes I wrote tests) with `tox` or `pytest` or to run them for just
-one problem, `pytest <year>/<directory>`.
+one problem, `poetry run pytest <year>/<directory>`.
 
 Install the pre-commit hooks to keep the code nicely formatted via
 [pre-commit](https://pre-commit.com/) with `pre-commit install`.
@@ -26,9 +36,3 @@ To benchmark one of the modules with `timeit`, can run something like:
 python -m timeit -s 'import y2021.problem15; inp = open("y2021/problem15/input").read(-1).strip()' 'y2021.problem15.part1(inp)'
 1 loop, best of 5: 938 msec per loop
 ```
-
-The `requirements.txt` file is generated with pip-compile from [pip-tools](https://pip-tools.readthedocs.io/en/latest/). To re-compile:
-
-```
-pip-compile --no-emit-index-url > requirements.txt
-```