From 8ab47537c758fddb8d8eb8eff481a092e52cd793 Mon Sep 17 00:00:00 2001
From: Todd Gamblin <tgamblin@llnl.gov>
Date: Mon, 29 Aug 2016 22:34:47 -0700
Subject: [PATCH] Fix exception constructors. (#1663)

---
 lib/spack/spack/provider_index.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/spack/spack/provider_index.py b/lib/spack/spack/provider_index.py
index 3f9cd285e7..2be48b43c1 100644
--- a/lib/spack/spack/provider_index.py
+++ b/lib/spack/spack/provider_index.py
@@ -32,6 +32,7 @@
 from yaml.error import MarkedYAMLError
 
 import spack
+import spack.error
 
 
 class ProviderIndex(object):
@@ -201,11 +202,10 @@ def from_yaml(stream):
                 "error parsing YAML ProviderIndex cache:", str(e))
 
         if not isinstance(yfile, dict):
-            raise spack.spec.SpackYAMLError(
-                "YAML ProviderIndex was not a dict.")
+            raise ProviderIndexError("YAML ProviderIndex was not a dict.")
 
         if 'provider_index' not in yfile:
-            raise spack.spec.SpackYAMLError(
+            raise ProviderIndexError(
                 "YAML ProviderIndex does not start with 'provider_index'")
 
         index = ProviderIndex()
@@ -291,3 +291,7 @@ def mapiter(mappings):
         (name, out_mapping_type([
             transform_fun(vpkg, pset) for vpkg, pset in mapiter(mappings)]))
         for name, mappings in providers.items())
+
+
+class ProviderIndexError(spack.error.SpackError):
+    """Raised when there is a problem with a ProviderIndex."""
-- 
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