#0  0x00007f611c2bce2d in pkgCache::FindPkg(std::string const&) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#1  0x00007f611c2e9918 in pkgCacheGenerator::NewPackage(pkgCache::PkgIterator&, std::string const&) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#2  0x00007f611c2ea77f in pkgCacheGenerator::MergeList(pkgCacheGenerator::ListParser&, pkgCache::VerIterator*) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#3  0x00007f611c31d069 in debStatusIndex::Merge(pkgCacheGenerator&, OpProgress&) const () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#4  0x00007f611c2ea094 in ?? () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#5  0x00007f611c2ed415 in pkgMakeStatusCache(pkgSourceList&, OpProgress&, MMap**, bool) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#6  0x00007f611c2e32f5 in pkgCacheFile::BuildCaches(OpProgress&, bool) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#7  0x00007f611c2e3440 in pkgCacheFile::Open(OpProgress&, bool) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#8  0x00007f611c557912 in TmpGetCache(_object*, _object*) ()
   from /usr/lib/python2.6/dist-packages/apt_pkg.so
No symbol table info available.
#9  0x00000000004a290d in PyEval_EvalFrameEx ()
No symbol table info available.
#10 0x00000000004a40e0 in PyEval_EvalCodeEx ()
No symbol table info available.
#11 0x00000000004a245f in PyEval_EvalFrameEx ()
No symbol table info available.
#12 0x00000000004a40e0 in PyEval_EvalCodeEx ()
No symbol table info available.
#13 0x00000000004a41b2 in PyEval_EvalCode ()
No symbol table info available.
#14 0x00000000004c3390 in PyRun_FileExFlags ()
No symbol table info available.
#15 0x00000000004c3554 in PyRun_SimpleFileExFlags ()
No symbol table info available.
#16 0x0000000000418ab7 in Py_Main ()
No symbol table info available.
#17 0x00007f611c789abd in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#18 0x0000000000417ca9 in _start ()
No symbol table info available.