Problem importing python file from current directory

I have tried the solution suggested on #48 , but it is not working. I am using Julia 0.6.2 on Windows with Python 2.7 and the program is

```
using PyCall
unshift!(PyVector(pyimport("sys")["path"]),"")
@pyimport Leitura_Sistema_REDS as ls
```

and I get the error message

```
ERROR: LoadError: PyError (ccall(@pysym(:PyImport_ImportModule), PyPtr, (Cstring,), name)

The Python package Leitura_Sistema_REDS could not be found by pyimport. Usually this means
that you did not install Leitura_Sistema_REDS in the Python version being used by PyCall.
```

Start by reproducing the shown PyCall code with Julia 0.6.2 on Windows and Python 2.7, then inspect which Python environment and import path PyCall is using. Compare that behavior with the guidance in issue #48. Done means the local Leitura_Sistema_REDS module imports successfully, or the issue clearly documents the environment-specific limitation and correct setup.

索引モデルが issue の本文から書いたものです。