[Bug 1778960] Re: SRU: Update python 2.7 to the final 2.7.15 release

[Steve Langasek]

There appears to be something mechanically wrong with the SRU that's
been uploaded:

-Breaks: python-urllib3 (<< 1.9.1-3), cython (<< 0.26-2.1), python-lxml (<< 3.8.0-2), python-numpy (<< 1:1.12.1-3.1), python-tk (<< 2.7.14~rc1-1~), python-scipy (<< 0.18.1-2.1), epigrass (<= 2.4.7-1), invesalius-bin (<= 3.1.1-1), macs (<= 2.1.1.20160309-1), printrun (<= 0~20150310-5), pycorrfit (<= 1.0.0+dfsg-1), pyscanfcs (<= 0.2.3-3), python-acora (<= 2.0-2+b1), python-adios (<= 1.12.0-3), python-astroml-addons (<= 0.2.2-4), python-astropy (<= 2.0.1-2), python-astroscrappy (<= 1.0.5-1+b1), python-bcolz (<= 1.1.0+ds1-4+b1), python-breezy (<= 3.0.0~bzr6772-1), python-bzrlib (<= 2.7.0+bzr6622-7), python-cartopy (<= 0.14.2+dfsg1-2+b1), python-cogent (<= 1.9-11), python-cutadapt (<= 1.13-1+b1), python-cypari2 (<= 1.0.0-3), python-dipy-lib (<= 0.12.0-1), python-djvu (<= 0.8-2), python-fabio (<= 0.4.0+dfsg-2+b1), python-falcon (<= 1.0.0-2+b1), python-fiona (<= 1.7.9-1), python-fpylll (<= 0.2.4+ds-3), python-grib (<= 2.0.2-2), python-gssapi (<= 1.2.0-1+b1), python-h5py (<= 2.7.0-1+b1), python-healpy (<= 1.10.3-2+b1), python-htseq (<= 0.6.1p1-4), python-imobiledevice (<= 1.2.0+dfsg-3.1), python-kivy (<= 1.9.1-1+b1), python-libdiscid (<= 1.0-1+b1), python-liblo (<= 0.10.0-3+b1), python-llfuse (<= 1.2+dfsg-1+b1), python-meliae (<= 0.4.0+bzr199-3), python-netcdf4 (<= 1.2.9-1+b1), python-nipy-lib (<= 0.4.1-1), python-pandas-lib (<= 0.20.3-1), python-petsc4py (<= 3.7.0-3+b1), python-pybloomfiltermmap (<= 0.3.15-0.1+b1), python-pyfai (<= 0.13.0+dfsg-1+b1), python-pygame-sdl2 (<= 6.99.12.4-1), python-pygpu (<= 0.6.9-2), python-pymca5 (<= 5.1.3+dfsg-1+b1), python-pymssql (<= 2.1.3+dfsg-1+b1), python-pyresample (<= 1.5.0-3+b1), python-pysam (<= 0.11.2.2+ds-3), python-pysph (<= 0~20160514.git91867dc-4), python-pywt (<= 0.5.1-1.1+b1), python-rasterio (<= 0.36.0-2+b2), python-renpy (<= 6.99.12.4+dfsg-1), python-sfepy (<= 2016.2-2), python-sfml (<= 2.2~git20150611.196c88+dfsg-4), python-shapely (<= 1.6.1-1), python-skimage-lib (<= 0.12.3-9+b1), python-sklearn-lib (<= 0.19.0-1), python-specutils (<= 0.2.2-1+b1), python-statsmodels-lib (<= 0.8.0-3), python-stemmer (<= 1.3.0+dfsg-1+b7), python-tables-lib (<= 3.3.0-5+b1), python-tinycss (<= 0.4-1+b1), python-wheezy.template (<= 0.1.167-1.1+b1), python-yt (<= 3.3.3-2+b1), sagemath (<= 8.0-5), xpra (<= 0.17.6+dfsg-1), 
+Breaks: python-urllib3 (<< 1.9.1-3), cython (<< 0.25.2-2build3), python-lxml (<< 3.8.0-2), python-numpy (<< 1:1.12.1-3.1ubuntu1), python-tk (<< 2.7.14~rc1-1~), python-scipy (<< 0.18.1-2ubuntu3), 

That's a HUGE number of Breaks: that have been dropped, and many of them
appear to be relevant to upgrades from xenial.  I'm rejecting this
upload; please fix the dropped Breaks:, or if there's a reason these are
acceptable to drop, please annotate that in the changelog and reupload.

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https://bugs.launchpad.net/bugs/1778960

Title:
  SRU: Update python 2.7 to the final 2.7.15 release

Status in python2.7 package in Ubuntu:
  New

Bug description:
  Ubuntu 18.04 LTS shipped with the python 2.7.15 release candidate.
  Please let's update to the final release.

  Upstream changes are:

  - bpo-33374: Tweak the definition of PyGC_Head, so compilers do not believe
    it is always 16-byte aligned on x86. This prevents crashes with more
    aggressive optimizations present in GCC 8.

  - Identify as 2.7.15 instead of 2.7.15rc1

  Acceptance criteria: The package builds, and the testsuite doesn't
  show regressions.

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