--- a/contrib/benchmarks/perf.py	Sat Oct 05 10:29:34 2019 -0400
+++ b/contrib/benchmarks/perf.py	Sun Oct 06 09:45:02 2019 -0400
@@ -9,18 +9,22 @@
 
 from . import perfbench
 
+
 @perfbench()
 def track_tags(perf):
     return perf("perftags")
 
+
 @perfbench()
 def track_status(perf):
     return perf("perfstatus", unknown=False)
 
+
 @perfbench(params=[('rev', ['1000', '10000', 'tip'])])
 def track_manifest(perf, rev):
     return perf("perfmanifest", rev)
 
+
 @perfbench()
 def track_heads(perf):
     return perf("perfheads")