store cookies in xdg-data-dir, clean up typing, fix some tests

tests/test_amazon.py

@@ -9,9 +9,8 @@ def test_get_accounts():
     res = amazon.get_accounts(env)
 
     assert len(res) == 1
-    email, pwd = res[0]
-    assert email == 'test@example.com'
-    assert pwd == 'password123'
+    assert res[0].email == 'test@example.com'
+    assert res[0].password == 'password123'
 
 
 def test_get_accounts_numbered():
@@ -22,9 +21,8 @@ def test_get_accounts_numbered():
     res = amazon.get_accounts(env)
 
     assert len(res) == 1
-    email, pwd = res[0]
-    assert email == 'test@example.com'
-    assert pwd == 'password123'
+    assert res[0].email == 'test@example.com'
+    assert res[0].password == 'password123'
 
 
 def test_get_accounts_numbered_multi():
@@ -38,13 +36,11 @@ def test_get_accounts_numbered_multi():
 
     assert len(res) == 2
 
-    email1, pwd1 = res[0]
-    assert email1 == 'test@example.com'
-    assert pwd1 == 'password123'
+    assert res[0].email == 'test@example.com'
+    assert res[0].password == 'password123'
 
-    email2, pwd2 = res[1]
-    assert email2 == 'test2@example.com'
-    assert pwd2 == 'password456'
+    assert res[1].email == 'test2@example.com'
+    assert res[1].password == 'password456'
 
 
 def test_get_accounts_both():
@@ -57,10 +53,9 @@ def test_get_accounts_both():
     res = amazon.get_accounts(env)
 
     assert len(res) == 2
-    email1, pwd1 = res[0]
-    assert email1 == 'test@example.com'
-    assert pwd1 == 'password123'
 
-    email2, pwd2 = res[1]
-    assert email2 == 'test2@example.com'
-    assert pwd2 == 'password456'
+    assert res[0].email == 'test@example.com'
+    assert res[0].password == 'password123'
+
+    assert res[1].email == 'test2@example.com'
+    assert res[1].password == 'password456'