Move function outside the routes module.

app/labels_system/getter.py

@@ -192,6 +192,23 @@ def get_ids(objects: List[Dict[int, str]]) -> str :
     #remove last extra comma
     return objects_ids[0:-1]
 
+def get_user_selection(number_of_mandatory_labels: int, optional1: str, optional2: str) -> tuple :
+    '''
+    Return the right values of id_mandatory_labels and id_forbiden_labels when optional2 is missing.
+    It is necessary because optional1 could be id_mandatory_labels or id_forbiden_labels.
+    :param number_of_mandatory_labels: int
+    :param optional1: str
+    :param optional2: str
+    :return:
+    '''
+    if int(number_of_mandatory_labels):
+        id_mandatory_labels = optional1
+        id_forbiden_labels = optional2
+    else:
+        id_mandatory_labels = optional2
+        id_forbiden_labels = optional1
+    return id_mandatory_labels, id_forbiden_labels
+
 def send_query_to_db(query: str) -> List[Dict[int, str]] :
     '''
     Return the result of the query send to the database

app/labels_system/routes.py

 from typing import Dict, List
 import json
-from app.labels_system.getter import get_selected_elements, get_discriminating_labels, get_high_discriminating_labels
+from app.labels_system.getter import get_selected_elements, get_discriminating_labels, get_high_discriminating_labels, get_user_selection
 from app.labels_system import bp
 
 
@@ -23,19 +23,3 @@ def search(number_of_mandatory_labels: int, optional1: str, optional2: str) -> L
     result = [selected_elements, high_discriminating_labels]
     return json.dumps(result)
 
-def get_user_selection(number_of_mandatory_labels: int, optional1: str, optional2: str) -> tuple :
-    '''
-    Return the right values of id_mandatory_labels and id_forbiden_labels when optional2 is missing.
-    It is necessary because optional1 could be id_mandatory_labels or id_forbiden_labels.
-    :param number_of_mandatory_labels: int
-    :param optional1: str
-    :param optional2: str
-    :return:
-    '''
-    if int(number_of_mandatory_labels):
-        id_mandatory_labels = optional1
-        id_forbiden_labels = optional2
-    else:
-        id_mandatory_labels = optional2
-        id_forbiden_labels = optional1
-    return id_mandatory_labels, id_forbiden_labels
\ No newline at end of file