From dfbc91f22e39a592360e4a0026022813a9041891 Mon Sep 17 00:00:00 2001
From: lilydjwg <lilydjwg@gmail.com>
Date: Wed, 30 Aug 2017 14:26:25 +0800
Subject: [PATCH] ignore when version records file does not exist

---
 nvchecker/core.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/nvchecker/core.py b/nvchecker/core.py
index 97827c9..abf424f 100644
--- a/nvchecker/core.py
+++ b/nvchecker/core.py
@@ -49,10 +49,13 @@ def safe_overwrite(fname, data, *, method='write', mode='w', encoding=None):
 
 def read_verfile(file):
   v = {}
-  with open(file) as f:
-    for l in f:
-      name, ver = l.rstrip().split(None, 1)
-      v[name] = ver
+  try:
+    with open(file) as f:
+      for l in f:
+        name, ver = l.rstrip().split(None, 1)
+        v[name] = ver
+  except FileNotFoundError:
+    pass
   return v
 
 def write_verfile(file, versions):