nabu CLI: Fix single scalar user indice

nabu/resources/cli/reconstruct.py

@@ -5,6 +5,7 @@ from ...io.config import NabuConfigParser, validate_nabu_config
 from .utils import parse_params_values
 from ..utils import is_hdf5_extension
 from .cli_configs import ReconstructConfig
+from ..validators import convert_to_int
 
 
 def update_reconstruction_start_end(conf_dict, user_indices):
@@ -12,24 +13,30 @@ def update_reconstruction_start_end(conf_dict, user_indices):
         return
     rec_cfg = conf_dict["reconstruction"]
     err = None
-    if user_indices in ["first", "middle", "last"]:
+
+    val_int, conv_err = convert_to_int(user_indices)
+    if conv_err is None:
         start_z = user_indices
         end_z = user_indices
-    elif user_indices == "all":
-        start_z = 0
-        end_z = -1
-    elif "-" in user_indices:
-        try:
-            start_z, end_z = user_indices.split("-")
-            start_z = int(start_z)
-            end_z = int(end_z)
-        except Exception as exc:
-            err = "Could not interpret slice indices '%s': %s" % (user_indices, str(exc))
     else:
-        err = "Could not interpret slice indices: %s" % user_indices
-    if err is not None:
-        print(err)
-        exit(1)
+        if user_indices in ["first", "middle", "last"]:
+            start_z = user_indices
+            end_z = user_indices
+        elif user_indices == "all":
+            start_z = 0
+            end_z = -1
+        elif "-" in user_indices:
+            try:
+                start_z, end_z = user_indices.split("-")
+                start_z = int(start_z)
+                end_z = int(end_z)
+            except Exception as exc:
+                err = "Could not interpret slice indices '%s': %s" % (user_indices, str(exc))
+        else:
+            err = "Could not interpret slice indices: %s" % user_indices
+        if err is not None:
+            print(err)
+            exit(1)
     rec_cfg["start_z"] = start_z
     rec_cfg["end_z"] = end_z