Add grocery shopping

Author: rjLelis

grocery-shopping/README.md

@@ -0,0 +1,7 @@
+# Grocery shopping
+
+You enter with items to be store in a `.data` file
+
+### Worked concepts
+* File reading and writing
+* Pickle

grocery-shopping/grocery-list.data

@@ -0,0 +1,23 @@
+
+grocery_list = []
+
+
+def add(item):
+    grocery_list.append(item)
+
+
+def add(*items):
+    for i in items:
+        grocery_list.append(i)
+
+
+def exclude(item):
+    grocery_list.remove(item)
+
+
+def get_list():
+    return grocery_list
+
+
+def alter(item, new_item):
+    grocery_list[grocery_list.index(item)] = new_item

grocery-shopping/grocery_list.py

@@ -0,0 +1,20 @@
+import pickle
+
+file_name = "grocery-list.data"
+
+
+def persist(items):
+    with open(file_name, "wb") as f:
+        pickle.dump(items, f)
+
+
+def read():
+    items = []
+    with open(file_name, "rb") as f:
+        items = pickle.load(f)
+    return items
+
+
+def update(items):
+    with open(file_name, "r+b") as f:
+        pickle.dump(items, f)

grocery-shopping/grocery_list_repository.py

@@ -0,0 +1,35 @@
+import grocery_list
+import grocery_list_repository
+
+
+def main():
+    option = 0
+    while True:
+        print("1 - Add item to the list")
+        print("2 - Update item from the list")
+        print("3 - Delete item from the list")
+        print("4 - Get all items from the list")
+        print("5 - Save list")
+        print("0 - Exit")
+        option = int(input("> "))
+
+        if option == 1:
+            item = input("Enter the item: ")
+            grocery_list.add(item.title())
+        elif option == 2:
+            item = input("Enter the item you want to replace: ")
+            new_item = input("Enter the new item to store on the list: ")
+            grocery_list.alter(item, new_item)
+        elif option == 3:
+            item = input("Enter the item you want to remove: ")
+            grocery_list.exclude(item)
+        elif option == 4:
+            print("Items - ")
+            print(grocery_list_repository.read())
+        elif option == 5:
+            grocery_list_repository.persist(grocery_list.get_list())
+        elif option == 0:
+            break
+
+if __name__ == '__main__':
+    main()