Update odd_even_transposition_parallel.py (#1458)

* Update odd_even_transposition_parallel.py

* arr = OddEvenTransposition(arr)

sorts/odd_even_transposition_parallel.py

@@ -10,7 +10,7 @@ comparisons.
 They are synchronized with locks and message passing but other forms of
 synchronization could be used.
 """
-from multiprocessing import Process, Pipe, Lock
+from multiprocessing import Lock, Pipe, Process
 
 # lock used to ensure that two processes do not access a pipe at the same time
 processLock = Lock()
@@ -73,15 +73,11 @@ arr = the list to be sorted
 
 
 def OddEvenTransposition(arr):
-
     processArray = []
-
     resultPipe = []
-
     # initialize the list of pipes where the values will be retrieved
     for _ in arr:
         resultPipe.append(Pipe())
-
     # creates the processes
     # the first and last process only have one neighbor so they are made outside
     # of the loop
@@ -131,21 +127,15 @@ def OddEvenTransposition(arr):
     for p in range(0, len(resultPipe)):
         arr[p] = resultPipe[p][0].recv()
         processArray[p].join()
-
     return arr
 
 
 # creates a reverse sorted list and sorts it
 def main():
-    arr = []
-
-    for i in range(10, 0, -1):
-        arr.append(i)
+    arr = list(range(10, 0, -1))
     print("Initial List")
     print(*arr)
-
-    list = OddEvenTransposition(arr)
-
+    arr = OddEvenTransposition(arr)
     print("Sorted List\n")
     print(*arr)