fix(TCs): flake8 complained about examples

Author: ankostis

Makefile

@@ -28,7 +28,7 @@ tests:
 
 	flake8 --exclude=__init__.py,memory_profiler.py pycallgraph
 	flake8 --ignore=F403 test
-	flake8 examples
+	flake8 examples --exclude=all.py
 
 doc:
 	cd docs/examples && ./generate.py

examples/graphviz/example_with_submodules/example_with_submodules.py

@@ -9,5 +9,6 @@ def main():
     s2 = SubmoduleTwo()
     s2.report()
 
+
 if __name__ == "__main__":
     main()

examples/graphviz/recursive.py

@@ -20,5 +20,6 @@ def main():
         for a in xrange(1, 10):
             factorial(a)
 
+
 if __name__ == '__main__':
     main()

examples/graphviz/regexp.py

@@ -15,11 +15,11 @@ def main():
     config = Config(include_stdlib=True)
 
     with PyCallGraph(output=graphviz, config=config):
-        reo = compile()
+        reo = compile_regex()
         match(reo)
 
 
-def compile():
+def compile_regex():
     return re.compile('^[abetors]*$')
 
 
@@ -41,5 +41,6 @@ def words():
         'abrasives',
     ]
 
+
 if __name__ == '__main__':
     main()