From ef5a828e57bcdc9ebe790a88cb756b82fd6a2988 2013-10-02 10:40:47
From: Abhinav Upadhyay <er.abhinav.upadhyay@gmail.com>
Date: 2013-10-02 10:40:47
Subject: [PATCH] Use the with statement to open a file.

---

diff --git a/IPython/core/magics/code.py b/IPython/core/magics/code.py
index 7f569a3..d37843b 100644
--- a/IPython/core/magics/code.py
+++ b/IPython/core/magics/code.py
@@ -402,9 +402,8 @@ class CodeMagics(Magics):
         self.shell.hooks.editor(filename)
 
         # and make a new macro object, to replace the old one
-        mfile = open(filename)
-        mvalue = mfile.read()
-        mfile.close()
+        with open(filename) as mfile:
+            mvalue = mfile.read()
         self.shell.user_ns[mname] = Macro(mvalue)
 
     @skip_doctest