PyDev: Can't compile after accidentally naming file after Python io.py - python-2.7

Question

So I without thinking stupidly named a file io.py in my working directory. When I tried to compile I got a traceback error. Having realised what I'd done I renamed my file and updated references to it but I still get the following error:
Traceback (most recent call last):
File "C:\Users\Tom\workspace\Converter\get_file.py", line 9, in <module>
from scipy import complex_
File "C:\Python27\lib\site-packages\scipy\__init__.py", line 70, in <module>
from numpy import show_config as show_numpy_config
File "C:\Python27\lib\site-packages\numpy\__init__.py", line 185, in <module>
from . import add_newdocs
File "C:\Python27\lib\site-packages\numpy\add_newdocs.py", line 13, in <module>
from numpy.lib import add_newdoc
File "C:\Python27\lib\site-packages\numpy\lib\__init__.py", line 8, in <module>
from .type_check import *
File "C:\Python27\lib\site-packages\numpy\lib\type_check.py", line 11, in <module>
import numpy.core.numeric as _nx
File "C:\Python27\lib\site-packages\numpy\core\__init__.py", line 46, in <module>
from numpy.testing import Tester
File "C:\Python27\lib\site-packages\numpy\testing\__init__.py", line 13, in <module>
from .utils import *
File "C:\Python27\lib\site-packages\numpy\testing\utils.py", line 15, in <module>
from tempfile import mkdtemp
File "C:\Python27\lib\tempfile.py", line 32, in <module>
import io as _io
File "C:\Users\Tom\workspace\Converter\io.py", line 1, in <module>
"""The io module provides the Python interfaces to stream handling. The
File "C:\Users\Tom\workspace\Converter\get_file.py", line 9, in <module>
from scipy import complex_
ImportError: cannot import name complex_
I have restarted PyDev to no avail. I have refreshed the interpreter to no avail.
I have followed the instructions found in this Python issue but that command returns the correct result on my machine.
Is tempfile.py a temporary file I can remove to resolve this issue?

Answer 1

I have found the solution. Stupidly simple but maybe worth leaving here for other newbies who fall into the same trap.
PyDev compiles the code into *.pyc files. When you update the references and rename the files these aren't immediately recompiled. Deleting the io.pyc file I had allowed compilation too run properly.
I found some more info on common pitfalls too.