Add utils.py file with category-related functions

src/utils.py

@@ -0,0 +1,27 @@
+import json
+
+with open('Category-tree.json') as f:
+    cat_data = json.load(f)
+    
+candidate_labels = ['BEVERAGES', 'SNACKS & BRANDED FOODS', 'NOT FOUND', 'EGGS, MEAT & FISH', 
+		    'FOODGRAINS, OIL & MASALA', 'PERSONAL CARE', 'CLEANING & HOUSEHOLD', 
+		    'FRUITS & VEGETABLES', 'BAKERY, CAKES & DAIRY', 'MAKEUP', 'BABY CARE', 
+		    'PET FOOD & ACCESSORIES', 'NON FMCG', 'TOBACCO', 'WELLNESS', 'ALCOHOLIC BEVERAGES']
+
+def get_childs(parent):
+    catagories = []
+    for category in cat_data:
+        if category['name'] == parent:
+            for child in category['children']:
+                catagories.append(child['name'])
+    return catagories
+
+def get_inner_child(to_find_parent,to_find_child):
+    catagories = []
+    for parent in cat_data:
+        if parent['name'] == to_find_parent:
+            for child in parent['children']:
+                if child['name'] == to_find_child:
+                    for inner_child in child['children']:
+                        catagories.append(inner_child['name'])
+    return catagories