diff --git a/IPython/utils/_process_emscripten.py b/IPython/utils/_process_emscripten.py
index cbab32d..c029eb8 100644
--- a/IPython/utils/_process_emscripten.py
+++ b/IPython/utils/_process_emscripten.py
@@ -3,15 +3,19 @@
 This file is only meant to be imported by process.py, not by end-users.
 """
 
+
 def system(cmd):
     raise OSError("Not available")
 
+
 def getoutput(cmd):
     raise OSError("Not available")
 
+
 def check_pid(cmd):
     raise OSError("Not available")
 
+
 def arg_split(s, posix=False, strict=True):
     """This one could be made to work but it's not clear if it would be useful..."""
     raise OSError("Not available")