From e5ae739b401ed6dea09fa316854ebca0e41fb0b7 Mon Sep 17 00:00:00 2001
From: Steve Dower <steve.dower@microsoft.com>
Date: Tue, 6 Oct 2015 10:22:18 -0700
Subject: [PATCH] Fixes #810 Referencing several Python extension modules does
 not work Compares last modified time against the file referenced by the row,
 rather than the newly added extension.

---
 Python/Product/Analysis/Interpreter/PythonTypeDatabase.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Python/Product/Analysis/Interpreter/PythonTypeDatabase.cs b/Python/Product/Analysis/Interpreter/PythonTypeDatabase.cs
index 6b883b6a63..9dc247fd0d 100644
--- a/Python/Product/Analysis/Interpreter/PythonTypeDatabase.cs
+++ b/Python/Product/Analysis/Interpreter/PythonTypeDatabase.cs
@@ -298,12 +298,13 @@ private static string FindDbFile(IPythonInterpreterFactory interpreter, string e
                         DateTime lastModified;
                         if (!File.Exists(columns[extensionModuleFilenameIndex]) ||  // extension has been deleted
                             !DateTime.TryParseExact(columns[extensionTimeStamp], "O", null, System.Globalization.DateTimeStyles.RoundtripKind, out lastModified) ||
-                            lastModified != new FileInfo(extensionModuleFilename).LastWriteTime) { // extension has been modified
+                            lastModified != File.GetLastWriteTime(columns[extensionModuleFilenameIndex])) { // extension has been modified
 
                             // cleanup the stale DB files as we go...
                             try {
-                                File.Delete(columns[4]);
+                                File.Delete(columns[dbFileIndex]);
                             } catch (IOException) {
+                            } catch (UnauthorizedAccessException) {
                             }
                             continue;
                         }