diff --git a/IPython/core/async_helpers.py b/IPython/core/async_helpers.py
index 0e7db0b..4dfac54 100644
--- a/IPython/core/async_helpers.py
+++ b/IPython/core/async_helpers.py
@@ -10,7 +10,6 @@ explicitly to actually raise a SyntaxError and stay as close as possible to
 Python semantics.
 """
 
-
 import ast
 import asyncio
 import inspect
diff --git a/IPython/core/tests/test_autocall.py b/IPython/core/tests/test_autocall.py
index 925a1cc..f371a4b 100644
--- a/IPython/core/tests/test_autocall.py
+++ b/IPython/core/tests/test_autocall.py
@@ -5,6 +5,7 @@ directory, which we are removing.  For now putting this here ensures at least
 we do run the test, though ultimately this functionality should all be tested
 with better-isolated tests that don't rely on the global instance in iptest.
 """
+
 from IPython.core.splitinput import LineInfo
 from IPython.core.prefilter import AutocallChecker
 
diff --git a/IPython/extensions/tests/test_autoreload.py b/IPython/extensions/tests/test_autoreload.py
index 781885d..47f3e2d 100644
--- a/IPython/extensions/tests/test_autoreload.py
+++ b/IPython/extensions/tests/test_autoreload.py
@@ -1,5 +1,6 @@
 """Tests for autoreload extension.
 """
+
 # -----------------------------------------------------------------------------
 #  Copyright (c) 2012 IPython Development Team.
 #
diff --git a/IPython/terminal/pt_inputhooks/asyncio.py b/IPython/terminal/pt_inputhooks/asyncio.py
index d2499e1..8f6a7f4 100644
--- a/IPython/terminal/pt_inputhooks/asyncio.py
+++ b/IPython/terminal/pt_inputhooks/asyncio.py
@@ -27,6 +27,7 @@ prompt_toolkit`s `patch_stdout`)::
     In [4]: asyncio.ensure_future(f())
 
 """
+
 from prompt_toolkit import __version__ as ptk_version
 
 from IPython.core.async_helpers import get_asyncio_loop
diff --git a/IPython/utils/_process_emscripten.py b/IPython/utils/_process_emscripten.py
index 05dcdc3..bfc2518 100644
--- a/IPython/utils/_process_emscripten.py
+++ b/IPython/utils/_process_emscripten.py
@@ -3,7 +3,6 @@
 This file is only meant to be imported by process.py, not by end-users.
 """
 
-
 from ._process_common import arg_split