From 14c141a410e7fb2312ec5d4157d2497bba35aa01 Mon Sep 17 00:00:00 2001
From: Todd Gamblin <tgamblin@llnl.gov>
Date: Tue, 26 Sep 2017 00:29:31 -0700
Subject: add spack flake8 exception for long checksums

---
 lib/spack/spack/cmd/flake8.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/spack/spack/cmd/flake8.py b/lib/spack/spack/cmd/flake8.py
index 9691ed138b..c3a5d70e58 100644
--- a/lib/spack/spack/cmd/flake8.py
+++ b/lib/spack/spack/cmd/flake8.py
@@ -79,9 +79,9 @@ exemptions = {
 
     # exemptions applied to all files.
     r'.py$': {
-        # Exempt lines with URLs from overlong line errors.
         'E501': [
-            r'(https?|ftp|file)\:',
+            r'(https?|ftp|file)\:',        # URLs
+            r'([\'"])[0-9a-fA-F]{32,}\1',  # long hex checksums
         ]
     },
 }
-- 
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