400 bad request using Python 3 (mediatools or discisrc backend)

[JonnyJD]

Using Python 3.3.2 (32 bit) on Windows 7 submission fails:

found new ISRC for track 1: b'GB'b'BBN'b'79'b'02002'
...
ERROR: Couldn't send ISRCs: caused by: HTTP Error 400: Bad Request

I want to note that using Python 2.7 it works on Windows (7) and using Python 3.3.2 it works on Linux.

[JonnyJD]

The problem must be somewhere in the parsing of the output of mediatools.exe (which is in the windows binary package of isrcsubmit.py).
Removing mediatools.exe and/or using libdiscid directly (for ISRCs) is a workaround.

[JonnyJD]

This isn't actually dependent on the OS. I could reproduce this on Linux with Python 3.3.2 forcing "discisrc" as backend.

However, on Windows mediatools.exe is the default and available, but on Linux all tools normally used (cdrdao, libdiscid) don't work with parsing stdin.

[JonnyJD]

This basically means #54 was incomplete.
I made a mistake in 8afa77c.