# foo.py
h = "foo"
print h

# 1) emacs select all
# 2) c-c | (python-mode: execute region)

Python 2.7.5 (default, Aug 25 2013, 00:04:04)
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named IPython.core.completerlib
>>> import os;os.chdir("/tmp/")
>>> exec(compile(open('/var/folders/0w/3cxrx6ds2txfqz5s447blww00000gn/T//python-65918FeD.py').read(), '/var/folders/0w/3cxrx6ds2txfqz5s447blww00000gn/T//python-65918FeD.py', 'exec')) # PYTHON-MODE
foo
>>>