From 1db492203398824ca237d8793c741ae69bf8a5b6 Mon Sep 17 00:00:00 2001
From: Mike Auty <mike.auty@gmail.com>
Date: Fri, 24 Mar 2017 01:01:52 +0000
Subject: [PATCH] Ensure we mimic python's errors as closely as possible.

---
 volatility/framework/symbols/intermed.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/volatility/framework/symbols/intermed.py b/volatility/framework/symbols/intermed.py
index 21d52bc61..898a37c69 100644
--- a/volatility/framework/symbols/intermed.py
+++ b/volatility/framework/symbols/intermed.py
@@ -102,7 +102,8 @@ class IntermediateSymbolTable(interfaces.symbols.SymbolTableInterface):
             if isf_url:
                 break
         else:
-            raise ValueError("ISF file {} could not be found in standard search paths".format(relative_isf))
+            raise FileNotFoundError(
+                "ISF path fragment {} could not be found in standard search paths".format(relative_isf))
         return cls(context, config_path, name, isf_url, native_types)
 
     def _closest_version(self, version, versions):