general: migrate modules to use 3.9 features

my/rescuetime.py

@@ -5,16 +5,15 @@ REQUIRES = [
     'git+https://github.com/karlicoss/rescuexport',
 ]
 
-from pathlib import Path
+from collections.abc import Iterable, Sequence
 from datetime import timedelta
-from typing import Sequence, Iterable
+from pathlib import Path
 
-from my.core import get_files, make_logger, stat, Stats
+from my.core import Stats, get_files, make_logger, stat
 from my.core.cachew import mcachew
 from my.core.error import Res, split_errors
 
-from my.config import rescuetime as config
-
+from my.config import rescuetime as config  # isort: skip
 
 logger = make_logger(__name__)
 
@@ -24,6 +23,7 @@ def inputs() -> Sequence[Path]:
 
 
 import rescuexport.dal as dal
+
 DAL = dal.DAL
 Entry = dal.Entry
 
@@ -43,6 +43,8 @@ def groups(gap: timedelta=timedelta(hours=3)) -> Iterable[Res[Sequence[Entry]]]:
 
 # todo automatic dataframe interface?
 from .core.pandas import DataFrameT, as_dataframe
+
+
 def dataframe() -> DataFrameT:
     return as_dataframe(entries())
 
@@ -56,16 +58,19 @@ def stats() -> Stats:
 
 # basically, hack config and populate it with fake data? fake data generated by DAL, but the rest is handled by this?
 
+from collections.abc import Iterator
 from contextlib import contextmanager
-from typing import Iterator
+
+
 # todo take seed, or what?
 @contextmanager
 def fake_data(rows: int=1000) -> Iterator:
     # todo also disable cachew automatically for such things?
-    from my.core.cfg import tmp_config
-    from my.core.cachew import disabled_cachew
-    from tempfile import TemporaryDirectory
     import json
+    from tempfile import TemporaryDirectory
+
+    from my.core.cachew import disabled_cachew
+    from my.core.cfg import tmp_config
     with disabled_cachew(), TemporaryDirectory() as td:
         tdir = Path(td)
         f = tdir / 'rescuetime.json'