From b8152e2d2396e82df9809fe252ff27dcfa490d4a Mon Sep 17 00:00:00 2001
From: Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it>
Date: Fri, 18 Aug 2017 07:39:49 +0200
Subject: [PATCH] mypy, read explicitly as binary

---
 relational/maintenance.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/relational/maintenance.py b/relational/maintenance.py
index 3a4e501..01a2374 100644
--- a/relational/maintenance.py
+++ b/relational/maintenance.py
@@ -113,7 +113,7 @@ class UserInterface:
         as string.
         '''
         if filename:
-            with open(filename, 'w') as f:
+            with open(filename, 'wb') as f:
                 pickle.dump(self.relations, f)
                 return None
         return base64.b64encode(pickle.dumps(self.relations)).decode()
@@ -130,7 +130,7 @@ class UserInterface:
             except:
                 pass
         elif filename:
-            with open(filename) as f:
+            with open(filename, 'rb') as f:
                 self.relations = pickle.load(f)
 
     def session_reset(self) -> None: