changed ImportError to ModuleNotFoundError for spa_calc

Author: PhilBrk8

pvlib/solarposition.py

@@ -190,9 +190,11 @@ def spa_c(time, latitude, longitude, pressure=101325., altitude=0.,
 
     try:
         from pvlib.spa_c_files.spa_py import spa_calc
-    except ImportError:
-        raise ImportError('Could not import built-in SPA calculator. ' +
-                          'You may need to recompile the SPA code.')
+    except ModuleNotFoundError as e:
+        raise ModuleNotFoundError(
+            "Could not import built-in SPA calculator. "
+            "You may need to recompile the SPA code."
+        ) from e
 
     time_utc = tools._pandas_to_utc(time)