cleaner spacing at top of module

pypiper/manager.py

@@ -42,6 +42,7 @@
 
 LOCK_PREFIX = "lock."
 
+
 class Unbuffered(object):
     def __init__(self, stream):
         self.stream = stream
@@ -57,6 +58,7 @@ def writelines(self, datas):
     def __getattr__(self, attr):
         return getattr(self.stream, attr)
 
+
 class PipelineManager(object):
     """
     Base class for instantiating a PipelineManager object,
@@ -199,7 +201,6 @@ def __init__(
         self.cores1of8 = int(self.cores) / 8
         self.cores7of8 = int(self.cores) - int(self.cores1of8)
 
-
         self.pl_version = version
         # Set relative output_parent directory to absolute
         # not necessary after all. . .
@@ -245,8 +246,6 @@ def __init__(
         # In-memory holder for report_result
         self.stats_dict = {}
 
-
-
         # Checkpoint-related parameters
         self.overwrite_checkpoints = overwrite_checkpoints
         self.halt_on_next = False
@@ -256,7 +255,6 @@ def __init__(
         # Pypiper can keep track of intermediate files to clean up at the end
         self.cleanup_list = []
         self.cleanup_list_conditional = []
-
 
         # Register handler functions to deal with interrupt and termination signals;
         # If received, we would then clean up properly (set pipeline status to FAIL, etc).