diff --git a/src/tests/test_overall.py b/src/tests/test_overall.py
--- a/src/tests/test_overall.py
+++ b/src/tests/test_overall.py
@@ -13,31 +13,31 @@ from . import RedirectedOutput
 
 
 config.logger.removeHandler(config.handler)
-handler=FileHandler("/tmp/morevna.log")
+handler = FileHandler("/tmp/morevna.log")
 handler.setFormatter(config.formatter)
 config.logger.addHandler(handler)
 
-config.batchSize.hash=8
-config.batchSize.data=8
+config.batchSize.hash = 8
+config.batchSize.data = 8
 
-dataDir=os.path.join(config.directory,"src/tests/data")
-filename=os.path.join(dataDir,"test.img")
+dataDir = os.path.join(config.directory, "src/tests/data")
+filename = os.path.join(dataDir, "test.img")
 
 
-def compareFiles(f1,f2):
-	with open(f1,mode="rb") as f:
-		h2=hashlib.sha256(f.read()).hexdigest()
-	with open(f2,mode="rb") as f:
-		h=hashlib.sha256(f.read()).hexdigest()
-	return (h,h2)
+def compareFiles(f1, f2):
+	with open(f1, mode="rb") as f:
+		h2 = hashlib.sha256(f.read()).hexdigest()
+	with open(f2, mode="rb") as f:
+		h = hashlib.sha256(f.read()).hexdigest()
+	return (h, h2)
 
 
-class TestMorevna(RedirectedOutput,TestCase):
-	_stdout=None
+class TestMorevna(RedirectedOutput, TestCase):
+	_stdout = None
 
 	def setUp(self):
-		src=os.path.join(dataDir,"test1.img")
-		shutil.copyfile(src,filename)
+		src = os.path.join(dataDir, "test1.img")
+		shutil.copyfile(src, filename)
 
 	@classmethod
 	def tearDownClass(cls):
@@ -45,68 +45,68 @@ class TestMorevna(RedirectedOutput,TestC
 		os.remove(filename)
 
 	def test_build(self):
-		treeFile=os.path.join(dataDir,"test.bin")
-		refFile=os.path.join(dataDir,"test1.bin")
+		treeFile = os.path.join(dataDir, "test.bin")
+		refFile = os.path.join(dataDir, "test1.bin")
 
-		tree=HashTree.fromFile(os.path.join(dataDir,"test1.img"))
+		tree = HashTree.fromFile(os.path.join(dataDir, "test1.img"))
 		tree.save(treeFile)
 
-		self.assertEqual(*compareFiles(refFile,treeFile))
+		self.assertEqual(*compareFiles(refFile, treeFile))
 
 		os.remove(treeFile)
 
 	def test_push(self):
-		config.port+=1
-		ms=Miniserver(filename)
-		p=multiprocessing.Process(target=ms.serve)
+		config.port += 1
+		ms = Miniserver(filename)
+		p = multiprocessing.Process(target=ms.serve)
 		p.start()
 
-		for clientFile in ("test2.img","test3.img","test4.img"):
-			clientFile=os.path.join(dataDir,clientFile)
-			c=Client(clientFile)
-			with ClientConnection("127.0.0.1",config.port) as con:
+		for clientFile in ("test2.img", "test3.img", "test4.img"):
+			clientFile = os.path.join(dataDir, clientFile)
+			c = Client(clientFile)
+			with ClientConnection("127.0.0.1", config.port) as con:
 				c.setConnection(con)
 				c.init("push")
-				blocksToTransfer=c.negotiate()
+				blocksToTransfer = c.negotiate()
 				c.sendData(blocksToTransfer)
 
-			self.assertEqual(*compareFiles(clientFile,filename))
+			self.assertEqual(*compareFiles(clientFile, filename))
 
 		p.terminate()
 		p.join()
 
 	def test_pull(self):
-		config.port+=1
-		serverFile=os.path.join(dataDir,"test3.img")
-		ms=Miniserver(serverFile)
-		p=multiprocessing.Process(target=ms.serve)
+		config.port += 1
+		serverFile = os.path.join(dataDir, "test3.img")
+		ms = Miniserver(serverFile)
+		p = multiprocessing.Process(target=ms.serve)
 		p.start()
 
-		c=Client(filename)
-		with ClientConnection("127.0.0.1",config.port) as con:
+		c = Client(filename)
+		with ClientConnection("127.0.0.1", config.port) as con:
 			c.setConnection(con)
 			c.init("pull")
-			blocksToTransfer=c.negotiate()
+			blocksToTransfer = c.negotiate()
 			c.pullData(blocksToTransfer)
 
-		self.assertEqual(*compareFiles(serverFile,filename))
+		self.assertEqual(*compareFiles(serverFile, filename))
 
 		p.terminate()
 		p.join()
 
 	def test_deny(self):
-		config.port+=1
-		ms=Miniserver(filename)
-		p=multiprocessing.Process(target=ms.serve)
+		config.port += 1
+		ms = Miniserver(filename)
+		p = multiprocessing.Process(target=ms.serve)
 		p.start()
 
-		c1=Client(os.path.join(dataDir,"test2.img"))
-		with ClientConnection("127.0.0.1",config.port) as con1:
+		c1 = Client(os.path.join(dataDir, "test2.img"))
+		with ClientConnection("127.0.0.1", config.port) as con1:
 			c1.setConnection(con1)
 			c1.init("push")
 
-			c2=Client(os.path.join(dataDir,"test3.img"))
-			with ClientConnection("127.0.0.1",config.port) as con2:
+			c2 = Client(os.path.join(dataDir, "test3.img"))
+			with ClientConnection("127.0.0.1", config.port) as con2:
 				c2.setConnection(con2)
 				with self.assertRaises(DeniedConnection):
 					c2.init("push")