add password read and write functionality

src/app/commands.py

@@ -1,3 +1,4 @@
+from . import datahandler
 from . import metadata
 
 def quit_appplication():
@@ -12,13 +13,18 @@ def print_help_message():
 
 def write_password():
     website = input("Enter a website: ")
-    pasword = input("Enter a password: ")
-    print(website + " -> " + pasword)
+    password = input("Enter a password: ")
+    datahandler.save_data(website, password)
     print("operation successfull!!!")
     print()
 
 def read_password():
-    pass
+    data_list = datahandler.load_data()
+    try:
+        for data_item in data_list:
+            print(f"{data_item[0]} - {data_item[1]}")
+    except IndexError as _:
+        raise Exception("data is corrupted!!")
 
 def read_info():
     path = metadata.RESOURCEDIR_PATH + "info.txt"

src/app/datahandler.py

@@ -0,0 +1,16 @@
+from . import metadata
+
+DATA_FILE = metadata.DATADIR_PATH + "data.txt"
+
+def save_data(website, password):
+    data = metadata.DATA_SEPARATOR.join([website, password])
+    with open(DATA_FILE, "a") as f:
+        f.write(data + '\n')
+
+def load_data():
+    data_list = []
+    with open(DATA_FILE) as f:
+        data = f.read()
+        for dataitem in data.split("\n"):
+            data_list.append(dataitem.split(metadata.DATA_SEPARATOR))
+    return data_list[:-1]

src/app/metadata.py

@@ -15,3 +15,6 @@
 # FilePath (Do Not Change this session, instead change above "Paths" session)
 DATADIR_PATH = os.path.join(__file__, os.path.sep.join(__DATADIR)) + os.path.sep
 RESOURCEDIR_PATH = os.path.join(__file__, os.path.sep.join(__RESOURCEDIR)) + os.path.sep
+
+# App Configuration
+DATA_SEPARATOR = " -> "