diff --git a/Library/Homebrew/sandbox.rb b/Library/Homebrew/sandbox.rb
index 501a43e4db..4823baf7f8 100644
--- a/Library/Homebrew/sandbox.rb
+++ b/Library/Homebrew/sandbox.rb
@@ -95,6 +95,10 @@ class Sandbox
       -k Sender sandboxd
     ]
     logs = Utils.popen_read("syslog", *syslog_args)
+
+    # These messages are confusing and non-fatal, so don't report them.
+    logs = logs.lines.reject{ |l| l.match(/^.*Python\(\d+\) deny file-write.*pyc$/) }.join
+
     unless logs.empty?
       if @logfile
         log = open(@logfile, "w")