Format all code with Ruff

pandas_market_calendars/calendar_utils.py

@@ -152,9 +152,9 @@ def _check_overlap(self, schedule):
 
             if end_times.gt(schedule.start.shift(-1)).any():
                 raise ValueError(
-                    f"The chosen frequency will lead to overlaps in the calculated index. "
-                    f"Either choose a higher frequency or avoid setting force_close to None "
-                    f"when setting closed to 'right', 'both' or None."
+                    "The chosen frequency will lead to overlaps in the calculated index. "
+                    "Either choose a higher frequency or avoid setting force_close to None "
+                    "when setting closed to 'right', 'both' or None."
                 )
 
     def _check_disappearing_session(self, schedule):

pyproject.toml

@@ -60,3 +60,6 @@ exclude_also = [
 ]
 
 ignore_errors = true
+
+[tool.ruff.lint]
+ignore = ["F403", "F405"]

tests/test_exchange_calendar_cme_globex_energy_and_metals.py

@@ -65,7 +65,7 @@ def _test_has_late_opens(late_opens, start, end):
     expected = cal.late_opens(schedule)
     assert len(expected) == len(late_opens)
     for ts in late_opens:
-        assert _test_verify_late_open_time(schedule, ts) == True
+        assert _test_verify_late_open_time(schedule, ts) is True
 
 
 def _test_verify_early_close_time(schedule, timestamp):
@@ -81,7 +81,7 @@ def _test_has_early_closes(early_closes, start, end):
     expected = cal.early_closes(schedule)
     assert len(expected) == len(early_closes)
     for ts in early_closes:
-        assert _test_verify_early_close_time(schedule, ts) == True
+        assert _test_verify_early_close_time(schedule, ts) is True
 
 
 #########################################################################

tests/test_nyse_calendar.py

@@ -15,7 +15,7 @@ def test_custom_open_close():
     assert sched.market_open.iat[0] == pd.Timestamp("2021-08-16 13:00:00+00:00")
     assert sched.market_close.iat[0] == pd.Timestamp("2021-08-16 14:00:00+00:00")
 
-    assert not NYSEExchangeCalendar.regular_market_times is cal.regular_market_times
+    assert NYSEExchangeCalendar.regular_market_times is not cal.regular_market_times
 
 
 @pytest.mark.parametrize(
@@ -129,16 +129,16 @@ def test_days_at_time_custom():
 def test_valid_days():
     cal = NYSEExchangeCalendar()
 
-    assert not cal.valid_days("1999-01-01", "2014-01-01") is None
+    assert cal.valid_days("1999-01-01", "2014-01-01") is not None
     # used to raise an error because tz= None
-    assert not cal.valid_days("1999-01-01", "2014-01-01", tz=None) is None
+    assert cal.valid_days("1999-01-01", "2014-01-01", tz=None) is not None
 
     assert (
-        not cal.special_dates("market_close", "1999-01-01", "2014-01-01", False) is None
+            cal.special_dates("market_close", "1999-01-01", "2014-01-01", False) is not None
     )
     # calls valid_days internally
     assert (
-        not cal.special_dates("market_close", "1999-01-01", "2014-01-01", True) is None
+            cal.special_dates("market_close", "1999-01-01", "2014-01-01", True) is not None
     )
 
     start, end = "2000-01-01", "2000-01-30"

tests/test_nyse_calendar_early_years.py

@@ -64,7 +64,7 @@ def _test_has_late_opens(late_opens, start, end):
     expected = nyse.late_opens(schedule)
     assert len(expected) == len(late_opens)
     for ts in late_opens:
-        assert _test_verify_late_open_time(schedule, ts) == True
+        assert _test_verify_late_open_time(schedule, ts) is True
 
 
 def _test_verify_early_close_time(schedule, timestamp):
@@ -80,7 +80,7 @@ def _test_has_early_closes(early_closes, start, end):
     expected = nyse.early_closes(schedule)
     assert len(expected) == len(early_closes)
     for ts in early_closes:
-        assert _test_verify_early_close_time(schedule, ts) == True
+        assert _test_verify_early_close_time(schedule, ts) is True
 
 
 #########################################################################
@@ -4014,6 +4014,6 @@ def test_2025():
         pd.Timestamp(
             "2025-11-28 1:00PM", tz="America/New_York"
         ),  # Day after Thanksgiving
-        pd.Timestamp("2025-12-24 1:00PM", tz="America/New_York"),  # Christmas eve
+        pd.Timestamp("2025-12-24 1:00PM", tz="America/New_York"),  # Christmas Eve
     ]
     _test_has_early_closes(early_closes, start, end)

tests/test_sifma_calendars.py

@@ -51,7 +51,7 @@ def _test_has_late_opens(cal, late_opens, start, end):
     expected = cal.late_opens(schedule)
     assert len(expected) == len(late_opens)
     for ts in late_opens:
-        assert _test_verify_late_open_time(schedule, ts) == True
+        assert _test_verify_late_open_time(schedule, ts) is True
 
 
 def _test_verify_early_close_time(schedule, timestamp):
@@ -67,7 +67,7 @@ def _test_has_early_closes(cal, early_closes, start, end):
     expected = cal.early_closes(schedule)
     assert len(expected) == len(early_closes)
     for ts in early_closes:
-        assert _test_verify_early_close_time(schedule, ts) == True
+        assert _test_verify_early_close_time(schedule, ts) is True
 
 
 #########################################################################