rc naming convention

[Augie Fackler]

> On Feb 6, 2019, at 04:47, Mathias De Maré <mathias.demare at gmail.com> wrote:
> 
> Hello all,
>  
> The CentOS RPMs think 4.9rc0 is more recent than 4.9 (which is somewhat annoying).
> I noticed there is some code in contrib/packaging/packagelib.sh to handle this, but it stopped working when the naming convention was changed from “-rc” to “rc”, in the 4.6rc0 timeframe.
>  
> Is there a reason for this change?

Because 4.9rcN is a valid version string for pip, but 4.9-rc is not.

> Additionally, what’s the preferred action? Should I modify contrib/packaging/packagelib.sh to support “rc”, or would it be better to go back to the “-rc” naming convention?

We won't be going back, because we need pip to do the right thing.

>  
> Greetings,
> Mathias
> 
> (sending again from my Gmail address, as my mail from @nokia.com doesn't appear to arrive)
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