pep8

Author: luzfcb

test/test_pycallgraph.py

@@ -1,8 +1,9 @@
 from helpers import *
-from pycallgraph.output import GraphvizOutput
 from pycallgraph import pycall_profile
 
+
 def test_start_no_outputs(pycg):
+
     with pytest.raises(PyCallGraphException):
         pycg.start()
 
@@ -20,6 +21,7 @@ def test_get_tracer_class(pycg):
     pycg.config.threaded = False
     assert pycg.get_tracer_class() == SyncronousTracer
 
+
 @pycall_profile()
 def print_something():
     print "hello"