Traceback (most recent call last):
  File "./shuffle.py", line 42, in ?
    sequence.save (args[1], amc.format)
  File "/home/evan/Projects/motion/py/Dance/Sequence.py", line 68, in save
    amc.format = format
SystemError: error return without exception set
*** glibc detected *** free(): invalid pointer: 0x0000000000564e70 ***

Program received signal SIGABRT, Aborted.
[Switching to Thread 46912509747968 (LWP 29748)]
0x00002aaaab5b0839 in raise () from /lib/tls/libc.so.6
(gdb) bt
#0  0x00002aaaab5b0839 in raise () from /lib/tls/libc.so.6
#1  0x00002aaaab5b1cde in abort () from /lib/tls/libc.so.6
#2  0x00002aaaab5e4b10 in __fsetlocking () from /lib/tls/libc.so.6
#3  0x00002aaaab5e9d10 in malloc_usable_size () from /lib/tls/libc.so.6
#4  0x00002aaaab5ea796 in free () from /lib/tls/libc.so.6
#5  0x00002aaaab7acb6e in AMC_dealloc (motion=0x2aaaac0b0690) at motion.c:123
#6  0x00002aaaaac0adbf in _PyFloat_Unpack8 () from /usr/lib/libpython2.4.so.1.0
#7  0x00002aaaaac6f839 in PySys_WriteStderr () from /usr/lib/libpython2.4.so.1.0
#8  0x00002aaaaac6f823 in PySys_WriteStderr () from /usr/lib/libpython2.4.so.1.0
#9  0x00002aaaaac1882a in PyDict_New () from /usr/lib/libpython2.4.so.1.0
#10 0x00002aaaaac18aba in PyDict_SetItem () from /usr/lib/libpython2.4.so.1.0
#11 0x00002aaaaac1ac59 in PyDict_SetItemString () from /usr/lib/libpython2.4.so.1.0
#12 0x00002aaaaac6274b in PyImport_Cleanup () from /usr/lib/libpython2.4.so.1.0
#13 0x00002aaaaac6cc50 in Py_Finalize () from /usr/lib/libpython2.4.so.1.0
#14 0x00002aaaaac7212f in Py_Main () from /usr/lib/libpython2.4.so.1.0
#15 0x00002aaaab59e674 in __libc_start_main () from /lib/tls/libc.so.6
#16 0x000000000040079a in _start ()