diff --git a/PyInstaller/lib/modulegraph/util.py b/PyInstaller/lib/modulegraph/util.py
index fe087777f62..7c742da7b4d 100644
--- a/PyInstaller/lib/modulegraph/util.py
+++ b/PyInstaller/lib/modulegraph/util.py
@@ -136,10 +136,7 @@ def iterate_instructions(code_object):
     Yields `dis.Instruction`. After each code-block (`co_code`), `None` is
     yielded to mark the end of the block and to interrupt the steam.
     """
-    # TODO: Implement "yield from" for python 3
-
-    for instruction in get_instructions(code_object):
-        yield instruction
+    yield from get_instructions(code_object)
 
     yield None
 
@@ -147,5 +144,4 @@ def iterate_instructions(code_object):
     # parse this constant in the same manner.
     for constant in code_object.co_consts:
         if inspect.iscode(constant):
-            for instruction in iterate_instructions(constant):
-                yield instruction
+            yield from iterate_instructions(constant)