ModelChainResult.__repr__

pvlib/modelchain.py

@@ -413,11 +413,7 @@ def __setattr__(self, key, value):
         super().__setattr__(key, value)
 
     def __repr__(self):
-        # once per MC
-        mc_attrs = ['weather', 'solar_position', 'airmass', 'tracking', 'aoi',
-                    'aoi_modifier', 'total_irrad', 'spectral_modifier',
-                    'effective_irradiance', 'cell_temperature', 'diode_params',
-                    'dc', 'dc_ohmic_losses', 'losses', 'ac']
+        mc_attrs = dir(self)
 
         def _head(obj):
             try:
@@ -433,12 +429,12 @@ def _head(obj):
         desc1 = ('=== ModelChainResult === \n')
         desc2 = (f'Number of Arrays: {num_arrays} \n')
         attr = 'times'
-        desc3 = ('Times (first 3)\n' +
+        desc3 = ('times (first 3)\n' +
                  f'{_head(_getmcattr(self, attr))}' +
                  '\n')
         lines = []
         for attr in mc_attrs:
-            if hasattr(self, attr):
+            if not (attr.startswith('_') or attr=='times'):
                 lines.append(f' {attr}: ' + _mcr_repr(getattr(self, attr)))
         desc4 = '\n'.join(lines)
         return (desc1 + desc2 + desc3 + desc4)

pvlib/tests/test_modelchain.py

@@ -2063,3 +2063,40 @@ def test__irrad_for_celltemp():
     assert len(poa) == 2
     assert_series_equal(poa[0], effect_irrad)
     assert_series_equal(poa[1], effect_irrad)
+
+
+@pytest.mark.parametrize('strategy, strategy_str', [
+    ('south_at_latitude_tilt', 'south_at_latitude_tilt'),
+    (None, 'None')])  # GitHub issue 352
+def test_ModelChain___repr__(sapm_dc_snl_ac_system, location, strategy,
+                             strategy_str):
+
+    mc = ModelChain(sapm_dc_snl_ac_system, location,
+                    name='my mc')
+
+    expected = '\n'.join([
+        'ModelChain: ',
+        '  name: my mc',
+        '  clearsky_model: ineichen',
+        '  transposition_model: haydavies',
+        '  solar_position_method: nrel_numpy',
+        '  airmass_model: kastenyoung1989',
+        '  dc_model: sapm',
+        '  ac_model: sandia_inverter',
+        '  aoi_model: sapm_aoi_loss',
+        '  spectral_model: sapm_spectral_loss',
+        '  temperature_model: sapm_temp',
+        '  losses_model: no_extra_losses'
+    ])
+
+    assert mc.__repr__() == expected
+
+
+def test_ModelChainResult___repr__(sapm_dc_snl_ac_system, location, weather):
+    mc = ModelChain(sapm_dc_snl_ac_system, location)
+    mc.run_model(weather)
+    mcres = mc.results.__repr__()
+    mc_attrs = dir(mc.results)
+    mc_attrs = [a for a in mc_attrs if not a.startswith('_')]
+    assert all([a in mcres for a in mc_attrs])
+