From d1ebf45ac6acc62dd56d6863ccf9678b78e787f8 2013-09-25 22:25:24
From: MinRK <benjaminrk@gmail.com>
Date: 2013-09-25 22:25:24
Subject: [PATCH] update bundled profiles to use extend
---

diff --git a/IPython/config/profile/cluster/ipython_config.py b/IPython/config/profile/cluster/ipython_config.py
index 07df14f..eb4b3fc 100644
--- a/IPython/config/profile/cluster/ipython_config.py
+++ b/IPython/config/profile/cluster/ipython_config.py
@@ -9,11 +9,5 @@ lines = """
 from IPython.parallel import *
 """
 
-# You have to make sure that attributes that are containers already
-# exist before using them.  Simple assigning a new list will override
-# all previous values.
-if hasattr(app, 'exec_lines'):
-    app.exec_lines.append(lines)
-else:
-    app.exec_lines = [lines]
+app.exec_lines.append(lines)
 
diff --git a/IPython/config/profile/math/ipython_config.py b/IPython/config/profile/math/ipython_config.py
index 2b2fe2d..39c5ca7 100644
--- a/IPython/config/profile/math/ipython_config.py
+++ b/IPython/config/profile/math/ipython_config.py
@@ -10,12 +10,4 @@ import cmath
 from math import *
 """
 
-# You have to make sure that attributes that are containers already
-# exist before using them.  Simple assigning a new list will override
-# all previous values.
-
-if hasattr(app, 'exec_lines'):
-    app.exec_lines.append(lines)
-else:
-    app.exec_lines = [lines]
-
+app.exec_lines.append(lines)
diff --git a/IPython/config/profile/pysh/ipython_config.py b/IPython/config/profile/pysh/ipython_config.py
index 69d262c..0f3bf6e 100644
--- a/IPython/config/profile/pysh/ipython_config.py
+++ b/IPython/config/profile/pysh/ipython_config.py
@@ -21,10 +21,4 @@ lines = """
 %rehashx
 """
 
-# You have to make sure that attributes that are containers already
-# exist before using them.  Simple assigning a new list will override
-# all previous values.
-if hasattr(app, 'exec_lines'):
-    app.exec_lines.append(lines)
-else:
-    app.exec_lines = [lines]
+app.exec_lines.append(lines)
diff --git a/IPython/config/profile/sympy/ipython_config.py b/IPython/config/profile/sympy/ipython_config.py
index b31dae2..6004cf1 100644
--- a/IPython/config/profile/sympy/ipython_config.py
+++ b/IPython/config/profile/sympy/ipython_config.py
@@ -13,18 +13,8 @@ k, m, n = symbols('k m n', integer=True)
 f, g, h = symbols('f g h', cls=Function)
 """
 
-# You have to make sure that attributes that are containers already
-# exist before using them.  Simple assigning a new list will override
-# all previous values.
-
-if hasattr(app, 'exec_lines'):
-    app.exec_lines.append(lines)
-else:
-    app.exec_lines = [lines]
+app.exec_lines.append(lines)
 
 # Load the sympy_printing extension to enable nice printing of sympy expr's.
-if hasattr(app, 'extensions'):
-    app.extensions.append('sympyprinting')
-else:
-    app.extensions = ['sympyprinting']
+app.extensions.append('sympy.interactive.ipythonprinting')