On Wed, Oct 04, 2017 at 05:23:58PM +0200, Andreas Tille wrote:
> Package: ftp.debian.org
> Severity: normal
> 
> Hi ftpmasters,
> 
> as discussed in detail on Debian Science list[1] please remove pandas
> for the said architectures to enable lowering severity of bug #877419
> and let the package migrate to testing at least for the working
> architectures.
> 
> Thanks a lot for your ftpmaster work
> 
>      Andreas.
> 
> [1] https://lists.debian.org/debian-science/2017/10/msg00009.html

The dak command used in this email is misleading.

  -A, --no-arch-all-rdeps    Do not report breaking arch:all packages
                             or Build-Depends-Indep

Without -A you get:
# Broken Depends:
pandas: python-pandas
        python3-pandas

And pandas is not a leaf package.

The removal you are requesting would make pandas no longer available on 
these architectures.

Due to that that you would also remove all binary-any reverse 
(build) dependencies.

As an example, testing migration of statsmodels is currently blocked by 
missing builds due to non-installable pandas on the architectures where 
you want to remove pandas.


What causes these FTBFS to appear is likely related to:

pandas (0.20.3-1) unstable; urgency=medium
...
    - enabled back all the tests for now
...
 -- Yaroslav Halchenko <deb...@onerussian.com>  Mon, 10 Jul 2017 20:00:59 -0400


This sounds as if pandas previously needed some fiddling with the tests,
and doing that again is likely a better option.[1]


cu
Adrian

[1] ideally each test failure should be debugged properly,
    but as short-term hack disabling some tests would be an option

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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