Fixed reorganized gererator list.

run_all_exercises.py

@@ -6,11 +6,11 @@ import threading
 nWorker = 0
 
 for dataset in testSets:
-    for (name, f) in generators:
+    for name in generators.keys():
         nWorker += 1
         if 0 == os.fork():
             print(f"#{nWorker}: start: {name}({dataset})")
-            runExercise(dataset, None, name, f)
+            runExercise(dataset, None, name, generators[name])
             print(f"#{nWorker}: end.")
             exit()
         else: