Dead code

[JoLo90]

The following internal functions or methods aren't used in the pvlib codebase

pvlib-python/pvlib/clearsky.py

Line 223 in 5f70c5a

def _is_leap_year(year):

pvlib-python/pvlib/modelchain.py

Line 1251 in 5f70c5a

def _prep_inputs_tracking(self):

Should we remove them in a future version ?

[cwhanse]

I concur with these removals.

def _prep_inputs_tracking(self):

This private function was added before the author (me) of the run_model PR realized that tracking computations are expected to be done prior to instantiating the PVSystem that ModelChain operates on.

ModelChain is clumsy for tracking PV systems. Different issue to improve it.