style fixes

neo/SmartContract/ApplicationEngine.py

@@ -17,6 +17,7 @@
 import pdb
 from neo.UInt160 import UInt160
 
+
 class ApplicationEngine(ExecutionEngine):
 
     ratio = 100000
@@ -177,7 +178,6 @@ def CheckDynamicInvoke(self):
             # read the current position of the stream
             start_pos = self.CurrentContext.OpReader.stream.tell()
 
-
             # normal app calls are stored in the op reader
             # we read ahead past the next instruction 1 the next 20 bytes
             script_hash = self.CurrentContext.OpReader.ReadBytes(21)[1:]
@@ -190,7 +190,6 @@ def CheckDynamicInvoke(self):
                 if b > 0:
                     return True
 
-
             # if this is a dynamic app call, we will arrive here
             # get the current executing script hash
             current = UInt160(data=self.CurrentContext.ScriptHash())
@@ -237,7 +236,6 @@ def Execute(self):
                 logger.error("Dynamic invoke without proper contract")
                 return False
 
-
             self.StepInto()
 
         return not self._VMState & VMState.FAULT > 0

neo/VM/ExecutionEngine.py

@@ -193,10 +193,10 @@ def ExecuteOp(self, opcode, context):
 
                 script_hash = context.OpReader.ReadBytes(20)
 
-                is_normal_call =False
+                is_normal_call = False
                 for b in script_hash:
                     if b > 0:
-                        is_normal_call=True
+                        is_normal_call = True
 
                 if not is_normal_call:
                     script_hash = self.EvaluationStack.Pop().GetByteArray()