Comment 3 for bug 957561

The same problem exists in r911. I have some additional information:

The splitting problem seems to depend on what python shell is selected.

If I edit the following script file and press C-c C-c, all works as expected. The window splits in two, one half shows the script file, and the other half shows the python buffer:

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#!/usr/bin/python
print "Hi, Richard"

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If I add one character to this file, changing "python" in line 1 to "ipython", then press C-c C-c, the window now splits OK, but instead of one half showing the (i)python buffer, both halves of the window now display the original python script.