[Python-modules-team] Bug#815326: FTBFS with newer cython due to untracked changes to the source

[Yaroslav Halchenko]

Source: python-aiohttp
Version: 0.20.2-1
Severity: important

I have uploaded fresh cython few days back 0.23.4+git4-g7eed8d8-1 and while
testing reverse dependencies, saw that this package would now FTBFS due
to

...
'build/scripts-3.4' does not exist -- can't clean it
I: pybuild base:184: python3.5-dbg setup.py clean 
running clean
removing '/build/python-aiohttp-0.20.2/.pybuild/pythonX.Y-dbg_3.5/build' (and everything under it)
setup.py:65: ResourceWarning: unclosed file <_io.TextIOWrapper name='README.rst' mode='r' encoding='ANSI_X3.4-1968'>
  return open(os.path.join(os.path.dirname(__file__), f)).read().strip()
setup.py:65: ResourceWarning: unclosed file <_io.TextIOWrapper name='CHANGES.txt' mode='r' encoding='ANSI_X3.4-1968'>
  return open(os.path.join(os.path.dirname(__file__), f)).read().strip()
'build/bdist.linux-x86_64' does not exist -- can't clean it
'build/scripts-3.5' does not exist -- can't clean it
make[1]: Leaving directory '/build/python-aiohttp-0.20.2'
   dh_clean -O--buildsystem=pybuild
 dpkg-source -b python-aiohttp-0.20.2
dpkg-source: info: using source format '3.0 (quilt)'
dpkg-source: info: building python-aiohttp using existing ./python-aiohttp_0.20.2.orig.tar.gz
dpkg-source: info: local changes detected, the modified files are:
 python-aiohttp-0.20.2/aiohttp/_websocket.c
dpkg-source: error: aborting due to unexpected upstream changes, see /tmp/python-aiohttp_0.20.2-1.diff.gmETvd
dpkg-source: info: you can integrate the local changes with dpkg-source --commit
dpkg-buildpackage: error: dpkg-source -b python-aiohttp-0.20.2 gave error exit status 2
I: copying local configuration
E: Failed autobuilding of package

cheers

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (900, 'testing'), (600, 'unstable'), (300, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.4.0-rc1+ (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)