Compatibility issues on Windows

[fwosar]

On Windows, any attempt to use the library will ultimately end up with a permission error. I tracked it down to the way you handle the certificate checks in case no bundles can be found (which you will not find on Windows, period). If you can't find a bundle, you ultimately end up writing out the root cert yourself using NamedTemporaryFile. However, NamedTemporaryFile does not work on Windows:

https://bugs.python.org/issue14243

My advice would be to simply bundle the cert as part of the Python package and read it from the class folder or alternatively disable automatic delete when using NamedTemporaryFile, make sure the file gets closed before being passed into wrap_socket, so that wrap_socket can actually open it, and then delete it yourself later when it is no longer needed. But IMHO the cleanest way is to simply get rid of any of that code and simply go with a bundled file.

[adrianog]

I got past the certificates problem on windows, but something else fails down the line. see #37