#0  0x00007f2161e9dd5b in pkgCache::FindPkg(std::string const&) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#1  0x00007f2161ecb7c8 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  0x00007f2161ecbbbc in pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator, std::string const&, std::string const&, unsigned int, unsigned int) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#3  0x00007f2161ef3004 in debListParser::ParseDepends(pkgCache::VerIterator, char const*, unsigned int) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#4  0x00007f2161ef33d9 in debListParser::NewVersion(pkgCache::VerIterator) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#5  0x00007f2161eccd16 in pkgCacheGenerator::MergeList(pkgCacheGenerator::ListParser&, pkgCache::VerIterator*) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#6  0x00007f2161f01c09 in debStatusIndex::Merge(pkgCacheGenerator&, OpProgress&) const () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#7  0x00007f2161ecbf44 in ?? () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#8  0x00007f2161ecf505 in pkgMakeStatusCache(pkgSourceList&, OpProgress&, MMap**, bool) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#9  0x00007f2161ec5455 in pkgCacheFile::BuildCaches(OpProgress&, bool) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#10 0x00007f2161ec55a0 in pkgCacheFile::Open(OpProgress&, bool) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#11 0x00007f216213d9f2 in TmpGetCache(_object*, _object*) ()
   from /usr/lib/python2.6/dist-packages/apt_pkg.so
No symbol table info available.
#12 0x00000000004a46fd in PyEval_EvalFrameEx ()
No symbol table info available.
#13 0x00000000004a5ed0 in PyEval_EvalCodeEx ()
No symbol table info available.
#14 0x00000000004a424f in PyEval_EvalFrameEx ()
No symbol table info available.
#15 0x00000000004a5ed0 in PyEval_EvalCodeEx ()
No symbol table info available.
#16 0x00000000004a5fa2 in PyEval_EvalCode ()
No symbol table info available.
#17 0x00000000004c52b0 in PyRun_FileExFlags ()
No symbol table info available.
#18 0x00000000004c5474 in PyRun_SimpleFileExFlags ()
No symbol table info available.
#19 0x000000000041a769 in Py_Main ()
No symbol table info available.
#20 0x00007f216236fc4d in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#21 0x0000000000419a09 in _start ()
No symbol table info available.