Upgrade python to 3.11

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         node-version: ['18']
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.11']
     steps:
       - name: Checkout repo
         uses: actions/checkout@v3
@@ -35,6 +35,10 @@ jobs:
 
   backend:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: ['18']
+        python-version: ['3.11']
     steps:
       - name: Checkout repo
         uses: actions/checkout@v3

README.md

@@ -9,7 +9,7 @@ Shows new MBTA Orange, Red, and Green Line trains as they come into service.
 ## Install & Run
 Dependencies:
 - `node` `18.x`
-- `python` `3.9`
+- `python` `3.11`
 - [`poetry`](https://python-poetry.org/)
 
 Run:

devops/deploy-playbook.yml

@@ -32,12 +32,12 @@
         repo: ppa:deadsnakes/ppa
         update_cache: yes
 
-    - name: install python3.9
+    - name: install python3.11
       become: yes
       become_user: root
       apt:
-        name: python3
-        state: 3.9
+        name: python3.11
+        state: latest
 
     - name: install poetry
       shell: curl -sSL https://install.python-poetry.org | python3 -
@@ -47,7 +47,7 @@
         repo: https://github.com/transitmatters/new-train-tracker.git
         dest: /home/ubuntu/new-train-tracker
         force: yes
-        version: main
+        version: python3.11-upgrade
 
     - name: copy systemd service file
       become: yes
@@ -82,6 +82,11 @@
         state: restarted
         daemon_reload: yes
 
+    - name: ensure using python 3.11 poetry environment
+      shell: /home/ubuntu/.local/bin/poetry env use 3.11
+      args:
+        chdir: /home/ubuntu/new-train-tracker
+
     - name: install app dependencies
       shell: npm ci
       args:

package.json

@@ -1,6 +1,6 @@
 {
     "name": "new-train-tracker",
-    "version": "2.3.1",
+    "version": "2.3.2",
     "description": "New Train Tracker by TransitMattters",
     "main": "index.tsx",
     "scripts": {

pyproject.toml

@@ -1,29 +1,33 @@
 [tool.poetry]
 name = "new-train-tracker"
-version = "2.3.1"
+version = "2.3.2"
 description = "New Train Tracker by TransitMattters"
 authors = ["TransitMatters Labs Team"]
 license = "MIT"
 
 [tool.poetry.dependencies]
-python = "^3.9, <3.12"
-flask = "2.3.3"
-aiohttp = "3.8.5"
-boto3 = "1.26.153"
-gunicorn = "20.1.0"
+python = "~3.11"
+flask = "3.0.0"
+aiohttp = "3.9.1"
+boto3 = "1.34.2"
+gunicorn = "21.2.0"
 json-api-doc = "0.15.0"
 pytz = "2023.3"
-MarkupSafe = "2.1.3"
 schedule = "1.2.1"
 
 
 [tool.poetry.dev-dependencies]
-pip = ">=23.0"
-black = "21.12b0"
+pip = ">=23.1"
+black = "^23.12.0"
 pylint = "2.13.5"
 flake8 = "6.1.0"
 
 
+[tool.black]
+line-length = 120
+target-version = ['py311']
+
+
 [build-system]
 requires = ["poetry-core>=1.6.0"]
 build-backend = "poetry.core.masonry.api"

server/application.py

@@ -34,12 +34,8 @@ def static_files(filename):
 @application.route("/trains/<route_ids_string>")
 def trains(route_ids_string):
     route_ids = route_ids_string.split(",")
-    vehicle_data = asyncio.run(
-        mbta_api.vehicle_data_for_routes(route_ids)
-    )
-    return flask.Response(json.dumps(vehicle_data), mimetype="application/json", headers={
-        "Cache-Control": "no-cache"
-    })
+    vehicle_data = asyncio.run(mbta_api.vehicle_data_for_routes(route_ids))
+    return flask.Response(json.dumps(vehicle_data), mimetype="application/json", headers={"Cache-Control": "no-cache"})
 
 
 # takes a single route id
@@ -70,9 +66,7 @@ def root():
     shell = flask.request.args.get("shell")
     if shell:
         return static_files("index.html")
-    payload = asyncio.run(
-        initial_data.initial_request_data(DEFAULT_ROUTE_IDS)
-    )
+    payload = asyncio.run(initial_data.initial_request_data(DEFAULT_ROUTE_IDS))
     payload["static_data"] = get_static_data()
 
     response = flask.make_response(flask.render_template("index.html", initial_data=payload))
@@ -81,7 +75,7 @@ def root():
 
 
 def get_static_data():
-    with open('./static/static_data.json') as f:
+    with open("./static/static_data.json") as f:
         static_data = json.load(f)
     return static_data
 

server/background.py

@@ -5,6 +5,7 @@
 
 # Copied from https://schedule.readthedocs.io/en/stable/background-execution.html
 
+
 def run_continuously(interval_s=1) -> threading.Event:
     """Continuously run, while executing pending jobs at each
     elapsed time interval.

server/fleet.py

@@ -28,7 +28,7 @@ def get_is_new_dict(route_ids, test_fn):
     "Orange": orange_is_new,
     **get_is_new_dict(GREEN_ROUTE_IDS, green_is_new),
     **get_is_new_dict(SILVER_ROUTE_IDS, silver_is_new),
-    "Blue": blue_is_new
+    "Blue": blue_is_new,
 }
 
 

server/healthcheck.py

@@ -14,7 +14,7 @@ def file_age_s(pathname):
 def run():
     checks = [
         lambda: len(secrets.MBTA_V3_API_KEY) > 0,
-        lambda: file_age_s(LAST_SEEN_JSON_PATH) < 1800  # allow up to 30 minutes of outdated last_seen.json
+        lambda: file_age_s(LAST_SEEN_JSON_PATH) < 1800,  # allow up to 30 minutes of outdated last_seen.json
     ]
 
     for i in range(0, len(checks)):
@@ -24,11 +24,15 @@ def run():
             checks[i] = False
 
     if all(checks):
-        return Response(json.dumps({
-            "status": "pass"
-        }), mimetype="application/json", status=200)
+        return Response(json.dumps({"status": "pass"}), mimetype="application/json", status=200)
 
-    return Response(json.dumps({
-        "status": "fail",
-        "check_failed": checks.index(False),
-    }), mimetype="application/json", status=500)
+    return Response(
+        json.dumps(
+            {
+                "status": "fail",
+                "check_failed": checks.index(False),
+            }
+        ),
+        mimetype="application/json",
+        status=500,
+    )

server/initial_data.py

@@ -35,8 +35,8 @@ def calc_stats(vehicle_array):
         "Blue": {
             "totalActive": len(totalBlue),
             "totalNew": len(filter_new(totalBlue)),
-            "totalOld": len(filter_old(totalBlue))
-        }
+            "totalOld": len(filter_old(totalBlue)),
+        },
     }
 
     return vehicle_stats

server/last_seen.py

@@ -48,7 +48,7 @@ async def update_recent_sightings():
             LAST_SEEN_TIMES[line] = {
                 "car": vehicle["label"],
                 # Python isoformat() doesn't include TZ, but we know this is UTC because we used utcnow() above
-                "time": now.isoformat()[:-3] + "Z"
+                "time": now.isoformat()[:-3] + "Z",
             }
 
         with open(JSON_PATH, "w", encoding="utf-8") as file:

server/mbta_api.py

@@ -42,9 +42,7 @@ async def inner(some_session):
             eastern = pytz.timezone("US/Eastern")
             now_eastern = datetime.datetime.now(eastern)
             if response.status >= 400:
-                print(
-                    f"[{now_eastern}] API returned {response.status} for {url} -- it says {response_json}"
-                )
+                print(f"[{now_eastern}] API returned {response.status} for {url} -- it says {response_json}")
             try:
                 return json_api_doc.parse(response_json)
             except Exception as e:
@@ -158,9 +156,7 @@ async def stops_for_route(route_id):
                     "route": stop["route"],
                 },
                 filter(
-                    lambda stop: stop_belongs_to_custom_route(
-                        stop["id"], route_id, normalized_route_name
-                    ),
+                    lambda stop: stop_belongs_to_custom_route(stop["id"], route_id, normalized_route_name),
                     stops,
                 ),
             )

server/secrets.py

@@ -1,7 +1,7 @@
 MBTA_V3_API_KEY = ''
 # False by default, because debug Flask spawns two processes, and two last seen updaters will trample each other!
 LAST_SEEN_UPDATE = False
-'''
+"""
 If you put your api key here, you may want to run
 `git update-index --assume-unchanged server/secrets.py`
 so that it doesn't pollute your `git status`
@@ -14,4 +14,4 @@
   hidden = !git ls-files -v | grep "^[[:lower:]]"
 
 Then run `git hide server/secrets.py`
-'''
+"""