Cleanup, remove future, autofix ruff problems

Makefile

@@ -13,6 +13,7 @@ lint:
 	python -m ruff format --check ffn setup.py docs/source/conf.py
 
 fix:
+	python -m ruff check --fix ffn setup.py docs/source/conf.py
 	python -m ruff format ffn setup.py docs/source/conf.py
 
 clean:

ffn/__init__.py

@@ -1,10 +1,6 @@
-from . import core
-from . import data
-
-from .data import get
-
-# from .core import year_frac, PerformanceStats, GroupStats, merge
+from . import core, data
 from .core import *
+from .data import get
 
 core.extend_pandas()
 

ffn/core.py

@@ -1,5 +1,3 @@
-from __future__ import print_function
-
 import random
 
 import matplotlib

ffn/data.py

@@ -6,7 +6,6 @@
 
 import ffn
 
-# import ffn.utils as utils
 from . import utils
 
 

ffn/utils.py

@@ -1,15 +1,11 @@
+import pickle
 import re
+from typing import List, Sequence, Tuple, Union
 
 import decorator
 import numpy as np
 import pandas as pd
 from packaging.version import Version
-from typing import List, Sequence, Tuple, Union
-
-try:
-    import cPickle as pickle
-except ImportError:
-    import pickle
 
 
 def _memoize(func, *args, **kw):