move lastfm into public my. package

my/lastfm/__init__.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+from functools import lru_cache
+from typing import Dict, List, NamedTuple
+from datetime import datetime
+from pathlib import Path
+import os
+import json
+
+import pytz
+
+_PATH = Path("/L/backups/lastfm")
+
+class Scrobble(NamedTuple):
+    dt: datetime
+    track: str
+
+
+# TODO memoise...?
+
+# TODO watch out, if we keep the app running it might expire
+def _iter_scrobbles():
+    last = max(_PATH.glob('*.json'))
+    # TODO mm, no timezone? wonder if it's UTC...
+    j = json.loads(last.read_text())
+
+    for d in j:
+        ts = int(d['date'])
+        dt = datetime.fromtimestamp(ts, tz=pytz.utc)
+        track = f"{d['artist']} — {d['name']}"
+        yield Scrobble(dt, track)
+
+
+@lru_cache(1)
+def get_scrobbles():
+    return list(_iter_scrobbles())
+
+
+def test():
+    assert len(get_scrobbles()) > 1000