Thanks for the script. The crash is still reproducible as of now with at least python 2.7.14 . I need to check on the latest 2.7 branch yet.

On python 3 it produces an error as below : 

Traceback (most recent call last):
  File "../backups/bpo24828.py", line 6, in <module>
    code = compile(m, '', mode='exec')
ValueError: expression must have Load context but has Store instead

Crash report on Mac OS

MacOS/Python
Identifier:            Python
Version:               2.7.14 (2.7.14)
Code Type:             X86-64 (Native)
Parent Process:        zsh [13087]
Responsible:           iTerm2 [230]
User ID:               501

Date/Time:             2018-09-21 18:13:27.072 +0530
OS Version:            Mac OS X 10.10.4 (14E46)
Report Version:        11
Anonymous UUID:        BCB9DD4C-B310-CA87-7308-42F6715FDA83

Sleep/Wake UUID:       FA788657-D625-40D6-8701-16E042836F5F

Time Awake Since Boot: 24000 seconds
Time Since Wake:       14000 seconds

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000000

VM Regions Near 0:
--> 
    __TEXT                 00000001075be000-00000001075c0000 [    8K] r-x/rwx SM=COW  /usr/local/Cellar/python@2/2.7.14_3/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   org.python.python             	0x00000001075fc8bb dict_set_item_by_hash_or_entry + 14
1   org.python.python             	0x000000010764fa63 PyEval_EvalFrameEx + 14664
2   org.python.python             	0x000000010764bf29 PyEval_EvalCodeEx + 1583
3   org.python.python             	0x000000010764b8f4 PyEval_EvalCode + 54
4   org.python.python             	0x0000000107647fdc builtin_eval + 570
5   org.python.python             	0x00000001076527c8 PyEval_EvalFrameEx + 26285
6   org.python.python             	0x000000010764bf29 PyEval_EvalCodeEx + 1583
7   org.python.python             	0x000000010764b8f4 PyEval_EvalCode + 54
8   org.python.python             	0x000000010766f05d run_mod + 53
9   org.python.python             	0x000000010766f100 PyRun_FileExFlags + 133
10  org.python.python             	0x000000010766ec4f PyRun_SimpleFileExFlags + 698
11  org.python.python             	0x00000001076805f9 Py_Main + 3137
12  libdyld.dylib                 	0x00007fff9354a5c9 start + 1

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0xc6079cb3d3de86bb  rbx: 0x00000001077d3168  rcx: 0x0000000000000000  rdx: 0xc6079cb3d3de86bb
  rdi: 0x00000001077d3168  rsi: 0x00000001078f4a08  rbp: 0x00007fff586410d0  rsp: 0x00007fff586410c0
   r8: 0x0000000000000000   r9: 0x0000000000000000  r10: 0x0000000000000001  r11: 0x000000000024e797
  r12: 0x0000000107871a00  r13: 0x0000000107871b70  r14: 0x0000000000000008  r15: 0x00000001078f4a08
  rip: 0x00000001075fc8bb  rfl: 0x0000000000010206  cr2: 0x0000000000000000


Thanks