Python interpreter command crashes with SIGSEGV

[mbudde]

$ ledger python
Python 2.7.6 (default, Mar 22 2014, 23:03:41) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 2+2
Segmentation fault (core dumped)

Backtrace:

#0  0x00007ffff1bd5c15 in call_readline (sys_stdin=<optimized out>, sys_stdout=<optimized out>, prompt=<optimized out>)
    at /build/buildd/python2.7-2.7.6/Modules/readline.c:1117
#1  0x00007ffff5759500 in PyOS_Readline (sys_stdin=0x7ffff6b3b640 <_IO_2_1_stdin_>, sys_stdout=0x7ffff6b3b400 <_IO_2_1_stdout_>, 
    prompt=0x7ffff1de6144 ">>> ") at ../Parser/myreadline.c:207
#2  0x00007ffff57595c6 in tok_nextc.4536 (tok=tok@entry=0x76b690) at ../Parser/tokenizer.c:866
#3  0x00007ffff57488e8 in tok_get (p_end=0x7fffffffcb10, p_end@entry=0x100, p_start=0x7fffffffcb00, p_start@entry=0x8cc0, tok=0x76b690, tok@entry=0x0)
    at ../Parser/tokenizer.c:1212
#4  PyTokenizer_Get (tok=tok@entry=0x76b690, p_start=p_start@entry=0x7fffffffcb00, p_end=p_end@entry=0x7fffffffcb10) at ../Parser/tokenizer.c:1652
#5  0x00007ffff574968c in parsetok.2832 (tok=0x76b690, g=<optimized out>, start=start@entry=256, err_ret=err_ret@entry=0x7fffffffcb90, 
    flags=flags@entry=0x7fffffffcb70) at ../Parser/parsetok.c:159
#6  0x00007ffff5749a44 in PyParser_ParseFileFlagsEx (fp=<optimized out>, filename=filename@entry=0x7ffff5847114 "<stdin>", g=<optimized out>, 
    start=start@entry=256, ps1=ps1@entry=0x7ffff1de6144 ">>> ", ps2=ps2@entry=0x7ffff1de62c4 "... ", err_ret=err_ret@entry=0x7fffffffcb90, 
    flags=flags@entry=0x7fffffffcb70) at ../Parser/parsetok.c:106
#7  0x00007ffff5749af1 in PyParser_ASTFromFile (fp=fp@entry=0x7ffff6b3b640 <_IO_2_1_stdin_>, filename=filename@entry=0x7ffff5847114 "<stdin>", 
    start=start@entry=256, ps1=ps1@entry=0x7ffff1de6144 ">>> ", ps2=ps2@entry=0x7ffff1de62c4 "... ", flags=flags@entry=0x7fffffffcd00, 
    errcode=errcode@entry=0x7fffffffcc10, arena=arena@entry=0x76a610) at ../Python/pythonrun.c:1493
#8  0x00007ffff573a552 in PyRun_InteractiveOneFlags (fp=fp@entry=0x7ffff6b3b640 <_IO_2_1_stdin_>, filename=filename@entry=0x7ffff5847114 "<stdin>", 
    flags=flags@entry=0x7fffffffcd00) at ../Python/pythonrun.c:837
#9  0x00007ffff573a7de in PyRun_InteractiveLoopFlags (fp=fp@entry=0x7ffff6b3b640 <_IO_2_1_stdin_>, filename=filename@entry=0x7ffff5847114 "<stdin>", 
    flags=flags@entry=0x7fffffffcd00) at ../Python/pythonrun.c:777
#10 0x00007ffff57b4b6e in PyRun_AnyFileExFlags (fp=fp@entry=0x7ffff6b3b640 <_IO_2_1_stdin_>, filename=filename@entry=0x7ffff5847114 "<stdin>", 
    closeit=closeit@entry=0, flags=flags@entry=0x7fffffffcd00) at ../Python/pythonrun.c:746
#11 0x00007ffff57b59ef in Py_Main (argc=<optimized out>, argv=<optimized out>) at ../Modules/main.c:640
#12 0x00007ffff7ac2dc5 in ledger::python_interpreter_t::python_command (this=<optimized out>, args=...) at /tmp/buildd/ledger-3.1/src/pyinterp.cc:344
#13 0x00007ffff7ac5543 in operator() (a1=..., p=<optimized out>, this=<optimized out>) at /usr/include/boost/bind/mem_fn_template.hpp:165
#14 operator()<ledger::value_t, boost::_mfi::mf1<ledger::value_t, ledger::python_interpreter_t, ledger::call_scope_t&>, boost::_bi::list1<ledger::call_scope_t&> > (a=<synthetic pointer>, f=..., this=<optimized out>) at /usr/include/boost/bind/bind.hpp:303
#15 operator()<ledger::call_scope_t> (a1=..., this=<optimized out>) at /usr/include/boost/bind/bind_template.hpp:32
#16 boost::detail::function::function_obj_invoker1<boost::_bi::bind_t<ledger::value_t, boost::_mfi::mf1<ledger::value_t, ledger::python_interpreter_t, ledger::call_scope_t&>, boost::_bi::list2<boost::_bi::value<ledger::python_interpreter_t*>, boost::arg<1> > >, ledger::value_t, ledger::call_scope_t&>::invoke (function_obj_ptr=..., a0=...) at /usr/include/boost/function/function_template.hpp:132
#17 0x0000000000433206 in operator() (a0=..., this=0x7fffffffcf50) at /usr/include/boost/function/function_template.hpp:767
#18 ledger::global_scope_t::execute_command (this=this@entry=0x685fb0, args=..., at_repl=at_repl@entry=false)
    at /tmp/buildd/ledger-3.1/src/global.cc:260
#19 0x00000000004346c0 in ledger::global_scope_t::execute_command_wrapper (this=this@entry=0x685fb0, args=..., at_repl=at_repl@entry=false)
    at /tmp/buildd/ledger-3.1/src/global.cc:270
#20 0x00000000004290ee in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at /tmp/buildd/ledger-3.1/src/main.cc:121

ledger python file.py does not seem to be affected and neither does importing the ledger module in a normal Python interpreter session.