%%file no_blank.txt
line 1
line 2

!cat no_blank.txt

%%file with_blank.txt
line 1

line 2

!cat with_blank.txt

%%file py_with_blank.py
print 'spam'

print 'ham'

!cat py_with_blank.py

import IPython
import os
install_dir = os.path.split(IPython.__file__)[0]
cwd = %pwd
%cd -q $install_dir
!git branch
%cd -q $cwd