Python3 misc bugfixes

[Andrew Bartlett]

On Tue, 2018-03-06 at 21:25 +0000, Noel Power wrote:
> 
> Just let me know if it is really what you want. (In anycase I probably
> should update the test to demonstrate the various guid formats too)

I want a DWIM approach, hand the function either bytes or a string and
have it do the right thing.  

The only concession I'll make to your point is that I'm OK for there to
be a restriction that the 16 byte form must come as bytes. 

This matters as an ldb value could be internally either a string or
bytes (depending on many things) but appears as bytes and needs to be
interpreted based on the length. 

Andrew Bartlett

-- 
Andrew Bartlett
https://samba.org/~abartlet/
Authentication Developer, Samba Team         https://samba.org
Samba Development and Support, Catalyst IT   
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