calc step fixes formats

preprocessor/preprocessor/steps/calc.py

@@ -44,12 +44,12 @@ def calc_formula(source_dir: os.PathLike, inputs: List[dict], target_filename: o
         "--type", data_type,
     ]
 
-    for name, locator in inputs:
+    for name in inputs:
         # select first
-        filename = glob(join(source_dir, locator['glob']))[0]
+        filename = glob(join(source_dir, inputs[name]['glob']))[0]
         cmd.extend([
             "-%s" % name, filename,
-            "--%s_band=%d" % locator.get('band', 1),
+            "--%s_band=%d" % (name, inputs[name].get('band', 1)),
         ])
 
     if nodata_value is not None: