[Samba] Python 2.6 errors with Samba 4.9

[Andrew Bartlett]

Samba's declared minimum python version in 2.6, and we have in the past
made great efforts to continue to support Python 2.6.

However, Python 2.6 is very old, and neither developers nor our CI
infrastructure (Ubuntu 14.04) runs it, so things like this happen
without us noticing the consequences.

Sadly this isn't the first major release we had made that contained
such an incompatibility.

So, while this is likely to be fixed in a patch version, the next major
version of Samba will likely formally require Python 2.7, or if I can
get consensus, 3.6.  (As the whole Python2 suite is going unsupported
in less than two years).  

Andrew Bartlett

On Sun, 2018-09-16 at 11:28 -0400, Bill Baird via samba wrote:
> Python is 2.6, but why wouldn't it throw an error during
> configure/make?
> 
> I'm using Amazon Linux.
> 
> On Sun, Sep 16, 2018 at 11:22 AM Rowland Penny via samba <
> samba at lists.samba.org> wrote:
> 
> > 
> > On Sun, 16 Sep 2018 10:51:25 -0400
> > Bill Baird via samba <samba at lists.samba.org> wrote:
> > 
> > > 
> > > I ran the same thing with 4.8.5 and it work without any issues:
> > > 
> > > Adding groups
> > > Importing groups
> > > Committing 'add groups' transaction to disk
> > > Adding users
> > > Importing users
> > > Committing 'add users' transaction to disk
> > > Adding users to groups
> > > Committing 'add users to groups' transaction to disk
> > > 
> > > 
> > > On Sun, Sep 16, 2018 at 10:29 AM Bill Baird <Bill.Baird at phoenixmi
> > > .com>
> > > wrote:
> > > 
> > > > 
> > > > Hi All,
> > > > 
> > > > Attempting to do a classicupgrade and getting this error:
> > > > 
> > > > *Adding groups*
> > > > *Importing groups*
> > > > *Committing 'add groups' transaction to disk*
> > > > *Adding users*
> > > > *Importing users*
> > > > *Adding users to groups*
> > > > *Committing 'add users to groups' transaction to disk*
> > > > *ERROR(<type 'exceptions.ValueError'>): uncaught exception -
> > > > zero
> > > > length field name in format*
> > > > *  File
> > > > 
> > "/usr/local/samba/lib64/python2.6/site-
> > packages/samba/netcmd/__init__.py",
> > > 
> > > > 
> > > > line 177, in _run*
> > > > *    return self.run(*args, **kwargs)*
> > > > *  File
> > > > 
> > "/usr/local/samba/lib64/python2.6/site-
> > packages/samba/netcmd/domain.py",
> > > 
> > > > 
> > > > line 1681, in run*
> > > > *    useeadb=eadb, dns_backend=dns_backend,
> > > > use_ntvfs=use_ntvfs)*
> > > > *  File
> > > > "/usr/local/samba/lib64/python2.6/site-
> > > > packages/samba/upgrade.py",
> > > > line 845, in upgrade_from_samba3*
> > > > *    result.names.domaindn, result.lp, use_ntvfs)*
> > > > *  File
> > > > 
> > "/usr/local/samba/lib64/python2.6/site-
> > packages/samba/provision/__init__.py",
> > > 
> > > > 
> > > > line 1693, in setsysvolacl*
> > > > *    userdn = '<SID={}-{}>'.format(domainsid,
> > > > security.DOMAIN_RID_ADMINISTRATOR)*
> > > > 
> > The answer is staring you in the face ;-)
> > 
> > python2.6 isn't new enough for:
> > 
> > '<SID={}-{}>'.format(domainsid,security.DOMAIN_RID_ADMINISTRATOR)
> > 
> > It would have to be:
> > 
> > '<SID={0}-{1}>'.format(domainsid,security.DOMAIN_RID_ADMINISTRATOR)
> > 
> > Or:
> > 
> > '<SID=%s-%s>' % (domainsid,security.DOMAIN_RID_ADMINISTRATOR)
> > 
> > What is your OS ?
> > 
> > Rowland
> > 
> > --
> > To unsubscribe from this list go to the following URL and read the
> > instructions:  https://lists.samba.org/mailman/options/samba
> > 
> 
> -- 
> *Bill Baird*
> Chief Technology Officer
> Office: 845-876-8228 x311
> Mobile: 203-545-0437
> www.phoenixmi.com
> *To create an IT ticket, please email itsupport at phoenixmi.com
> <itsupport at phoenixmi.com> or call 845-943-4222.*
> 
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-- 
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba