[Python-modules-team] Bug#681270: causes FTBFS of pymvpa2 on s390x: TypeError: Improper input parameters in leastsq call

[Yaroslav Halchenko]

Package: python-scipy
Version: 0.10.1+dfsg1-3
Severity: serious
Justification: fails to build from source (but built successfully in the past)

Please see attached a somewhat minimalistic code to reproduce the
problem.

it fails only on s390x -- fine on s390 and any other architecture/port where
pymvpa2 was just built.

Traceback (most recent call last):
  File "scipy-fx-failure2.py", line 65, in <module>
    1.47441522,  1.78073152,  2.08704783,  2.39336413,  2.69968044]))
  File "scipy-fx-failure2.py", line 52, in least_sq_fit
    return leastsq(efx, params)
  File "/usr/lib/python2.7/dist-packages/scipy/optimize/minpack.py", line 324, in leastsq
    raise errors[info][1](errors[info][0])
TypeError: Improper input parameters.


-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (900, 'testing'), (600, 'unstable'), (300, 'experimental'), (100, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages python-scipy depends on:
ii  libamd2.2.0                        1:3.4.0-2
ii  libatlas3-base [liblapack.so.3gf]  3.8.4-7
ii  libatlas3gf-base                   3.8.4-7
ii  libblas3 [libblas3gf]              1.2.20110419-5
ii  libblas3gf                         1.2.20110419-5
ii  libc6                              2.13-33
ii  libgcc1                            1:4.7.1-2
ii  libgfortran3                       4.7.1-2
ii  liblapack3 [liblapack3gf]          3.4.1-4
ii  liblapack3gf                       3.4.1-4
ii  libquadmath0                       4.7.1-2
ii  libstdc++6                         4.7.1-2
ii  libumfpack5.4.0                    1:3.4.0-2
ii  python                             2.7.3~rc2-1
ii  python-numpy [python-numpy-abi9]   1:1.6.2-1
ii  python2.6                          2.6.8-0.2
ii  python2.7                          2.7.3~rc2-2.1

Versions of packages python-scipy recommends:
ii  g++ [c++-compiler]      4:4.7.1-1
ii  g++-4.4 [c++-compiler]  4.4.7-1
iu  g++-4.6 [c++-compiler]  4.6.3-8
ii  g++-4.7 [c++-compiler]  4.7.1-2
ii  python-dev              2.7.3~rc2-1
ii  python-imaging          1.1.7-4

Versions of packages python-scipy suggests:
ii  python [python-profiler]  2.7.3~rc2-1

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