Update after review of field_statistics.py

Author: oddvarlia

src/subscript/field_statistics/field_statistics.py

@@ -270,14 +270,14 @@
 EXAMPLES = """Add a file named e.g. ``ert/bin/workflows/wf_field_statistics`` with the contents::
 
   DEFINE <FIELD_STAT_CONFIG_FILE>  ../input/config/field_param_stat.yml
-  DEFINE <RELATIVE_RESULT_PATH>    share/grid_statistics
   DEFINE <ENSEMBLE_PATH>           <SCRATCH>/<USER>/<CASE_DIR>
-  DEFINE <LOAD_RESULT_SCRIPT>      <SCRATCH>/<USER>/<CASE_DIR>/<RELATIVE_RESULT_PATH>/tmp_import_field_stat.py
-  FIELD_STATISTICS  -c <FIELD_STAT_CONFIG_FILE>
-                    -e <ENSEMBLE_PATH>
-                    -p <CONFIG_PATH>
-                    -r <RELATIVE_RESULT_PATH>
-                    -z <LOAD_RESULT_SCRIPT>
+  DEFINE <RESULT_FIELD_STAT_PATH>  <ENSEMBLE_PATH>/share/grid_statistics
+  DEFINE <LOAD_TO_RMS_SCRIPT>      <RESULT_FIELD_STAT_PATH>/tmp_import_field_stat_into_rms.py
+  MAKE_DIRECTORY                   <RESULT_FIELD_STAT_PATH>
+  FIELD_STATISTICS  -c  <FIELD_STAT_CONFIG_FILE>
+                    -p  <CONFIG_PATH>
+                    -e  <ENSEMBLE_PATH> 
+                    -z  <LOAD_TO_RMS_SCRIPT>
                     -g
 
 where the config file for FIELD_STATISTICS in this example is located under::
@@ -360,12 +360,7 @@ def field_stat(args):
         relative_result_path = Path(args.resultpath)
     result_path = ens_path / relative_result_path
     if not result_path.exists():
-        # Create the directory
-        logger.info(
-            "Create directory for results for field parameter statistics: "
-            f"{result_path}"
-        )
-        result_path.mkdir()
+        raise IOError(f"Result directory:  {result_path} does not exist.")
 
     rms_load_script = None
     if args.generate_rms_load_script:
@@ -1010,13 +1005,13 @@ def get_specifications(input_dict, ertbox_size, ert_config_path):
 
     if not ertbox_size:
         # ertbox size does not exist, read it from this scripts config file instead
-        print("ERTBOX size is not defined, need to get it from the config file")
+        logger.info("ERTBOX size is not defined, need to get it from the config file.")
         key = "ertbox_size"
         if key in input_dict["geogrid_fields"]:
             ertbox_size = input_dict["geogrid_fields"][key]
         else:
             raise KeyError(
-                "Missing keyword 'ertbox_size'."
+                f"Missing keyword '{key}'."
                 "Is required if the ERTBOX.EGRID is not found in the "
                 "configuration directory of the FMU project under: "
                 f" {ert_config_path / Path('../../rms/output/aps/ERTBOX.EGRID')}"
@@ -1034,10 +1029,9 @@ def get_specifications(input_dict, ertbox_size, ert_config_path):
     zone_code_names = None
     param_name_dict = None
     disc_param_name_dict = None
-    key = "geogrid_fields"
-    if key in input_dict:
+    if "geogrid_fields" in input_dict:
         use_geogrid_fields = True
-        geogrid_fields_dict = input_dict[key]
+        geogrid_fields_dict = input_dict["geogrid_fields"]
 
         key = "zone_code_names"
         if key in geogrid_fields_dict:
@@ -1078,10 +1072,9 @@ def get_specifications(input_dict, ertbox_size, ert_config_path):
     temporary_ertbox_field = None
     init_path = None
     param_list = None
-    key = "temporary_ertbox_fields"
-    if key in input_dict:
+    if "temporary_ertbox_fields" in input_dict:
         use_temporary_fields = True
-        temporary_ertbox_field = input_dict[key]
+        temporary_ertbox_field = input_dict["temporary_ertbox_fields"]
 
         key = "initial_relative_path"
         if key in temporary_ertbox_field:
@@ -1409,22 +1402,17 @@ def calc_stats(
                             sum_total_active = np.ma.sum(sum_active) / nreal
                             sum_total_code = np.ma.sum(number_of_cells) / nreal
                             fraction = sum_total_code / sum_total_active
-                            txt1 = (
+                            logger.info(
                                 f"  Average number of active cells: {sum_total_active}"
                             )
-                            logger.info(txt1)
-
-                            txt2 = (
+                            logger.info(
                                 f"  Average number of cells with facies "
                                 f"{facies_name} is {sum_total_code}"
                             )
-                            logger.info(txt2)
-
-                            txt3 = (
+                            logger.info(
                                 "  Average estimated facies probability for facies "
                                 f"{facies_name}: {fraction}"
                             )
-                            logger.info(txt3)
 
                             sum_fraction += fraction