Resolve "Correct the entry point in the `losscalculator`"

Closes #82

\approve @shinde @laurens @ds

losscalculator/damage_calculator.py

@@ -24,9 +24,9 @@ import sys
 
 import numpy as np
 
-from .fragility_model import FragilityModel
-from .ground_motion import GMField
-from .losslib import get_full_gm_field
+from losscalculator.fragility_model import FragilityModel
+from losscalculator.ground_motion import GMField
+from losscalculator.losslib import get_full_gm_field
 from exposurelib.database import ExposureDatabase
 from exposurelib.utils import split_taxonomy
 
@@ -121,10 +121,7 @@ def damage_calculator(
     # Interpolate the ground-motion values for all the assets of the exposure model.
     # pylint: disable=E1101
     full_gm_field = get_full_gm_field(
-        gm_field.data,
-        entity_locations[:, 0],
-        entity_locations[:, 1],
-        interpolation_method,
+        gm_field.data, entity_locations[:, 0], entity_locations[:, 1], interpolation_method
     )
     for entity_idx, entity in enumerate(entity_locations):
         sql_statement = "INSERT INTO GMField "
@@ -160,8 +157,7 @@ def damage_calculator(
     ):
         reduced_taxonomy, _ = split_taxonomy(taxonomy)
         prob_of_exceed, prob_of_occurrence, im_value, im_type = fragility_model(
-            reduced_taxonomy,
-            full_gm_field[data_row],
+            reduced_taxonomy, full_gm_field[data_row]
         )
         probabilities_per_asset.append([i * num_buildings for i in prob_of_occurrence])
         asset_count += 1
@@ -271,11 +267,7 @@ def command_line_interface():
         + "intensity measure types that you have in your fragility functions",
     )
     parser.add_argument(
-        "-e",
-        "--exposure",
-        required=False,
-        type=str,
-        help="path to the exposure database file.",
+        "-e", "--exposure", required=False, type=str, help="path to the exposure database file."
     )
     parser.add_argument(
         "-s",