my.bluemaestro: minor cleanup

my/bluemaestro.py

@@ -4,13 +4,26 @@
 """
 
 # todo most of it belongs to DAL... but considering so few people use it I didn't bother for now
+from dataclasses import dataclass
 from datetime import datetime, timedelta
 from pathlib import Path
 import re
 import sqlite3
 from typing import Iterable, Sequence, Set, Optional
 
-from my.core import get_files, make_logger, dataclass, Res
+import pytz
+
+from my.core import (
+    get_files,
+    make_logger,
+    Res,
+    stat,
+    Stats,
+    influxdb,
+)
+from my.core.common import mcachew
+from my.core.error import unwrap
+from my.core.pandas import DataFrameT, as_dataframe
 from my.core.sqlite import sqlite_connect_immutable
 
 from my.config import bluemaestro as config
@@ -27,6 +40,7 @@ Celsius = float
 Percent = float
 mBar = float
 
+
 @dataclass
 class Measurement:
     dt: datetime  # todo aware/naive
@@ -38,7 +52,6 @@ class Measurement:
 
 # fixme: later, rely on the timezone provider
 # NOTE: the timezone should be set with respect to the export date!!!
-import pytz
 tz = pytz.timezone('Europe/London')
 # TODO when I change tz, check the diff
 
@@ -49,9 +62,7 @@ def is_bad_table(name: str) -> bool:
     return False if delegate is None else delegate(name)
 
 
-from my.core.cachew import cache_dir
-from my.core.common import mcachew
-@mcachew(depends_on=inputs, cache_path=cache_dir('bluemaestro'))
+@mcachew(depends_on=inputs)
 def measurements() -> Iterable[Res[Measurement]]:
     # todo ideally this would be via arguments... but needs to be lazy
     dbs = inputs()
@@ -68,7 +79,9 @@ def measurements() -> Iterable[Res[Measurement]]:
         with sqlite_connect_immutable(f) as db:
             db_dt: Optional[datetime] = None
             try:
-                datas = db.execute(f'SELECT "{f.name}" as name, Time, Temperature, Humidity, Pressure, Dewpoint FROM data ORDER BY log_index')
+                datas = db.execute(
+                    f'SELECT "{f.name}" as name, Time, Temperature, Humidity, Pressure, Dewpoint FROM data ORDER BY log_index'
+                )
                 oldfmt = True
                 db_dts = list(db.execute('SELECT last_download FROM info'))[0][0]
                 if db_dts == 'N/A':
@@ -178,12 +191,11 @@ def measurements() -> Iterable[Res[Measurement]]:
     # for k, v in merged.items():
     #     yield Point(dt=k, temp=v) # meh?
 
-from my.core import stat, Stats
+
 def stats() -> Stats:
     return stat(measurements)
 
 
-from my.core.pandas import DataFrameT, as_dataframe
 def dataframe() -> DataFrameT:
     """
     %matplotlib gtk
@@ -197,7 +209,6 @@ def dataframe() -> DataFrameT:
 
 
 def fill_influxdb() -> None:
-    from my.core import influxdb
     influxdb.fill(measurements(), measurement=__name__)
 
 
@@ -205,7 +216,6 @@ def check() -> None:
     temps = list(measurements())
     latest = temps[:-2]
 
-    from my.core.error import unwrap
     prev = unwrap(latest[-2]).dt
     last = unwrap(latest[-1]).dt