python-scientific: Crashes when deleting NetCDFFile instance

Binary package hint: python-scientific

Subject: python-scientific: Crashes when deleting NetCDFFile instance
Package: python-scientific
Version: 2.4.11-1build1
Severity: normal

*** Please type your report below this line ***

The ``NetCDF`` module of Scientific crashes when deleting a file
instance, be it open or closed. The following code shows this::

    from Scientific.IO import NetCDF

    ff = NetCDF.NetCDFFile('empty.nc','w')
    ff.close()
    del ff

    print 'SUCCESS'

The crash happens when calling ``del``, the last print isn't run. This
is the resulting output::

    *** glibc detected *** python: free(): invalid pointer: 0xb7cfddb8 ***
    ======= Backtrace: =========
    /lib/tls/i686/cmov/libc.so.6[0xb7dd17cd]
    /lib/tls/i686/cmov/libc.so.6(cfree+0x90)[0xb7dd4e30]
    /usr/lib/python2.5/site-packages/Scientific/linux2/Scientific_netcdf.so[0xb7ce3efe]
    python(PyDict_DelItem+0xd9)[0x8086a69]
    python(PyObject_DelItem+0x47)[0x80616b7]
    python(PyEval_EvalFrameEx+0x367a)[0x80c63ea]
    python(PyEval_EvalCodeEx+0x775)[0x80c9ca5]
    python(PyEval_EvalCode+0x57)[0x80c9d17]
    python(PyRun_FileExFlags+0xf8)[0x80e9118]
    python(PyRun_SimpleFileExFlags+0x187)[0x80e93a7]
    python(Py_Main+0x9c0)[0x8059330]
    python(main+0x22)[0x8058862]
    /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb7d7febc]
    python[0x80587b1]
    ======= Memory map: ========
    08048000-0813f000 r-xp 00000000 03:07 525211 /usr/bin/python2.5
    0813f000-08164000 rw-p 000f6000 03:07 525211 /usr/bin/python2.5
    08164000-081dc000 rw-p 08164000 00:00 0 [heap]
    b7b00000-b7b21000 rw-p b7b00000 00:00 0
    b7b21000-b7c00000 ---p b7b21000 00:00 0
    b7c84000-b7c8f000 r-xp 00000000 03:07 962946 /lib/libgcc_s.so.1
    b7c8f000-b7c90000 rw-p 0000a000 03:07 962946 /lib/libgcc_s.so.1
    b7ca6000-b7cdc000 r-xp 00000000 03:07 522855 /usr/lib/libnetcdf.so.3.6.1
    b7cdc000-b7cdd000 rw-p 00035000 03:07 522855 /usr/lib/libnetcdf.so.3.6.1
    b7cdd000-b7cde000 rw-p b7cdd000 00:00 0
    b7cde000-b7ce6000 r-xp 00000000 03:07 707931 /usr/lib/python2.5/site-packages/Scientific/linux2/Scientific_netcdf.so
    b7ce6000-b7ce7000 rw-p 00007000 03:07 707931 /usr/lib/python2.5/site-packages/Scientific/linux2/Scientific_netcdf.so
    b7ce7000-b7d6a000 rw-p b7ce7000 00:00 0
    b7d6a000-b7ea5000 r-xp 00000000 03:07 963541 /lib/tls/i686/cmov/libc-2.5.so
    b7ea5000-b7ea6000 r--p 0013b000 03:07 963541 /lib/tls/i686/cmov/libc-2.5.so
    b7ea6000-b7ea8000 rw-p 0013c000 03:07 963541 /lib/tls/i686/cmov/libc-2.5.so
    b7ea8000-b7eab000 rw-p b7ea8000 00:00 0
    b7eab000-b7ed0000 r-xp 00000000 03:07 636823 /lib/tls/i686/cmov/libm-2.5.so
    b7ed0000-b7ed2000 rw-p 00024000 03:07 636823 /lib/tls/i686/cmov/libm-2.5.so
    b7ed2000-b7ed4000 r-xp 00000000 03:07 704833 /lib/tls/i686/cmov/libutil-2.5.so
    b7ed4000-b7ed6000 rw-p 00001000 03:07 704833 /lib/tls/i686/cmov/libutil-2.5.so
    b7ed6000-b7ed7000 rw-p b7ed6000 00:00 0
    b7ed7000-b7ed9000 r-xp 00000000 03:07 636816 /lib/tls/i686/cmov/libdl-2.5.so
    b7ed9000-b7edb000 rw-p 00001000 03:07 636816 /lib/tls/i686/cmov/libdl-2.5.so
    b7edb000-b7eee000 r-xp 00000000 03:07 638926 /lib/tls/i686/cmov/libpthread-2.5.so
    b7eee000-b7ef0000 rw-p 00013000 03:07 638926 /lib/tls/i686/cmov/libpthread-2.5.so
    b7ef0000-b7ef2000 rw-p b7ef0000 00:00 0
    b7ef2000-b7f06000 r-xp 00000000 03:07 608297 /usr/lib/python2.5/site-packages/Numeric/_numpy.so
    b7f06000-b7f08000 rw-p 00013000 03:07 608297 /usr/lib/python2.5/site-packages/Numeric/_numpy.so
    b7f08000-b7f0a000 rw-p b7f08000 00:00 0
    b7f0a000-b7f23000 r-xp 00000000 03:07 964149 /lib/ld-2.5.so
    b7f23000-b7f25000 rw-p 00019000 03:07 964149 /lib/ld-2.5.so
    bfc42000-bfc58000 rw-p bfc42000 00:00 0 [stack]
    ffffe000-fffff000 r-xp 00000000 00:00 0 [vdso]

-- System Information:
Debian Release: 4.0
  APT prefers feisty-updates
  APT policy: (500, 'feisty-updates'), (500, 'feisty-security'), (500, 'feisty-backports'), (500, 'feisty')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/dash
Kernel: Linux 2.6.20-16-generic
Locale: LANG=ca_ES.UTF-8, LC_CTYPE=ca_ES.UTF-8 (charmap=UTF-8)

Versions of packages python-scientific depends on:
ii python 2.5.1-0ubuntu3 An interactive high-level object-o
ii python-central 0.5.12ubuntu4 register and build utility for Pyt
ii python-netcdf 2.4.11-1build1 A netCDF interface for Python
ii python-numeric-ext 24.2-7ubuntu1 Extension modules for Numeric Pyth
ii python2.5 2.5.1-0ubuntu1 An interactive high-level object-o

Versions of packages python-scientific recommends:
ii python-tk 2.5.1-0ubuntu1 Tkinter - Writing Tk applications

-- no debconf information