refactor: deprecate dead code

Author: JoLo90

docs/sphinx/source/whatsnew/v0.15.2.rst

@@ -10,6 +10,15 @@ Breaking Changes
 
 Deprecations
 ~~~~~~~~~~~~
+* The function :py:func:`pvlib.clearsky._is_leap_year` is deprecated and will be
+  removed in v0.17.0. Use :py:func:`pandas.Timestamp.is_leap_year` instead.
+  (:issue: `2764`, :pull:`XXXX`)
+* The function :py:func:`pvlib.irradiance._liujordan` is deprecated and will be
+  removed in v0.17.0. (:issue: `2764`, :pull:`XXXX`)
+* The function :py:func:`pvlib.modelchain.get_orientation` is deprecated and will
+  be removed in v0.17.0. (:issue: `2764`, :pull:`XXXX`)
+* The method :py:meth:`pvlib.modelchain.ModelChain._prep_inputs_tracking` is
+  deprecated and will be removed in v0.17.0. (:issue: `2764`, :pull:`XXXX`)
 
 
 Bug fixes

pvlib/clearsky.py

@@ -14,6 +14,7 @@
 
 from pvlib import atmosphere, tools
 from pvlib.tools import _degrees_to_index
+from pvlib._deprecation import deprecated
 
 
 def ineichen(apparent_zenith, airmass_absolute, linke_turbidity,
@@ -220,6 +221,13 @@ def lookup_linke_turbidity(time, latitude, longitude, filepath=None,
     return linke_turbidity
 
 
+@deprecated(
+    since="0.15.2",
+    removal="0.17.0",
+    name="_is_leap_year",
+    alternative=None,
+    addendum=None,
+)
 def _is_leap_year(year):
     """Determine if a year is leap year.
 

pvlib/iotools/bsrn.py

@@ -465,5 +465,5 @@ def read_bsrn(filename, logical_records=('0100',)):
     return content
 
 
-parse_bsrn = deprecated(since="0.13.0", name="parse_bsrn",
+parse_bsrn = deprecated(since="0.13.0",  removal="0.17.0", name="parse_bsrn",
                         alternative="read_bsrn")(read_bsrn)

pvlib/iotools/epw.py

@@ -311,5 +311,5 @@ def _parse_epw(csvdata, coerce_year=None):
     return data, meta
 
 
-parse_epw = deprecated(since="0.13.0", name="parse_epw",
+parse_epw = deprecated(since="0.13.0", removal="0.17.0", name="parse_epw",
                        alternative="read_epw")(read_epw)

pvlib/iotools/sodapro.py

@@ -359,5 +359,5 @@ def read_cams(filename, integrated=False, label=None, map_variables=True):
     return data, metadata
 
 
-parse_cams = deprecated(since="0.13.0", name="parse_cams",
+parse_cams = deprecated(since="0.13.0", removal="0.17.0", name="parse_cams",
                         alternative="read_cams")(read_cams)

pvlib/irradiance.py

@@ -18,6 +18,7 @@
 
 from pvlib._deprecation import pvlibDeprecationWarning
 import warnings
+from pvlib._deprecation import deprecated
 
 
 # Deprecation warning based on https://peps.python.org/pep-0562/
@@ -3086,8 +3087,13 @@ def campbell_norman(zenith, transmittance, pressure=101325.0,
 
     return irrads
 
-
-def _liujordan(zenith, transmittance, airmass, dni_extra=1367.0):
+@deprecated(
+    since="0.15.2",
+    removal="0.17.0",
+    name="_liujordan",
+    addendum=None,
+)
+def _liujordan(zenith: pd.Series, transmittance: float, airmass: float, dni_extra=1367.0) -> pd.DataFrame:
     '''
     Determine DNI, DHI, GHI from extraterrestrial flux, transmittance,
     and optical air mass number.
@@ -3106,11 +3112,11 @@ def _liujordan(zenith, transmittance, airmass, dni_extra=1367.0):
     transmittance: float
         Atmospheric transmittance between 0 and 1.
 
-    pressure: float, default 101325.0
-        Air pressure
+    airmass: float
+        Absolute airmass.
 
     dni_extra: float, default 1367.0
-        Direct irradiance incident at the top of the atmosphere.
+        Direct irradiance incident at the top of the atmosphere. [W/m²]
 
     Returns
     -------
@@ -3126,6 +3132,10 @@ def _liujordan(zenith, transmittance, airmass, dni_extra=1367.0):
     .. [2] Liu, B. Y., R. C. Jordan, (1960). "The interrelationship and
        characteristic distribution of direct, diffuse, and total solar
        radiation".  Solar Energy 4:1-19
+
+    .. deprecated:: 0.15.2
+        The ``_liujordan`` function is deprecated and will be removed in 0.17.0.
+        Use the ``liujordan`` function instead.
     '''
 
     tau = transmittance

pvlib/modelchain.py

@@ -63,7 +63,7 @@
 
 @deprecated(
     since="0.13.1",
-    removal="",
+    removal="0.17.0",
     name="pvlib.modelchain.get_orientation",
     alternative=None,
     addendum=None,
@@ -84,6 +84,9 @@ def get_orientation(strategy, **kwargs):
     Returns
     -------
     surface_tilt, surface_azimuth
+
+    .. deprecated:: 0.15.2
+        The ``get_orientation`` function is deprecated and will be removed in 0.17.0.
     """
     if strategy == 'south_at_latitude_tilt':
         surface_azimuth = 180
@@ -1248,6 +1251,13 @@ def _prep_inputs_airmass(self):
             model=self.airmass_model)
         return self
 
+    @deprecated(
+        since="0.15.2",
+        removal="0.17.0",
+        name="Modelchain._prep_inputs_tracking",
+        alternative=None,
+        addendum=None,
+    )
     def _prep_inputs_tracking(self):
         """
         Calculate tracker position and AOI

pvlib/tracking.py

@@ -1,7 +1,7 @@
 import numpy as np
 import pandas as pd
 
-from pvlib.tools import cosd, sind, tand, acosd, asind
+from pvlib.tools import cosd, sind, tand, acosd
 from pvlib import irradiance
 from pvlib import shading
 from pvlib._deprecation import renamed_kwarg_warning

tests/test_clearsky.py

@@ -8,13 +8,14 @@
 
 import pytest
 from numpy.testing import assert_allclose
-from .conftest import assert_frame_equal, assert_series_equal
+from .conftest import assert_frame_equal, assert_series_equal, fail_on_pvlib_version
 
 from pvlib.location import Location
 from pvlib import clearsky
 from pvlib import solarposition
 from pvlib import atmosphere
 from pvlib import irradiance
+from pvlib._deprecation import pvlibDeprecationWarning
 
 from .conftest import TESTS_DATA_DIR
 
@@ -894,3 +895,10 @@ def test_bird():
         [Eb3, Ebh3, Gh3, Dh3],
         testdata2[['Direct Beam', 'Direct Hz', 'Global Hz', 'Dif Hz']].iloc[11],
         rtol=1e-3)
+
+
+@fail_on_pvlib_version('0.17.0')
+def test_is_leap_year_deprecation():
+    with pytest.warns(pvlibDeprecationWarning, match='will be removed in 0.17.0.'):
+        clearsky._is_leap_year(2020)
+

tests/test_irradiance.py

@@ -14,6 +14,7 @@
 from .conftest import (
     assert_frame_equal,
     assert_series_equal,
+    fail_on_pvlib_version,
     requires_ephem,
     requires_numba,
 )
@@ -1454,3 +1455,9 @@ def test_diffuse_par_spitters():
         0.99591, 0.99576, 0.99472, 0.99270, 0.99283, 0.99406, 0.99581, 0.99591,
     ])  # fmt: skip
     assert_allclose(result, expected, atol=1e-5)
+
+@fail_on_pvlib_version('0.17.0')
+def test_liujordan_deprecation():
+    zenith = pd.Series([45.0, 50.0, 55.0])
+    with pytest.warns(pvlibDeprecationWarning, match='will be removed in 0.17.0.'):
+        irradiance._liujordan(zenith, transmittance=0.7, airmass=1.5)