--- a/hgdemandimport/tracing.py	Sat Oct 05 10:29:34 2019 -0400
+++ b/hgdemandimport/tracing.py	Sun Oct 06 09:45:02 2019 -0400
@@ -14,6 +14,7 @@
 _checked = False
 _session = 'none'
 
+
 def _isactive():
     global _pipe, _session, _checked
     if _pipe is None:
@@ -26,6 +27,7 @@
         _session = os.environ.get('HGCATAPULTSESSION', 'none')
     return True
 
+
 @contextlib.contextmanager
 def log(whencefmt, *whenceargs):
     if not _isactive():
@@ -48,6 +50,7 @@
         except IOError:
             pass
 
+
 def counter(label, amount, *labelargs):
     if not _isactive():
         return