What is the procedure for adding to bug report #54728. <https://trac.macports.org/ticket/54728>

Here is a summary of what happened on my machine: <https://trac.macports.org/ticket/54728>

1. Installed python3.6.2 without specifying a variant.
2. This version is stable (that is, no crash) but interaction with readline is faulty.
3. Installed python3.6.2 +readline.
4. Installed py36-readline as suggested by the installation script for the previous step. 5. the new version of python, in interactive mode, crashes when I type carriage return, with message like

Python(21762,0x7fffb987c3c0) malloc: *** error for object 0x10d930640: pointer being freed was not allocated.

6. Interaction of readline with unix shell appears normal after call to python terminates (both variants).

I have some information (file attached bu1.txt). I also attach the crash report produced by Macos (bug2.txt). I haven't yet collected any evidence for Point 2 above, but the fault could perhaps be demonstrated using script.

What additional info would be helpful?

David Epstein
Script started on Tue Sep  5 22:58:29 2017
Macintosh-2:~%
port installed | egrep "\bpy.*36"
  py27-setuptools @36.2.7_0 (active)
  py36-cython @0.26_0 (active)
  py36-nose @1.3.7_0 (active)
  py36-numpy @1.13.1_0+gfortran (active)
  py36-readline @6.2.4.1_1 (active)
  py36-setuptools @36.2.7_0 (active)
  python36 @3.6.2_0
  python36 @3.6.2_0+readline (active)
  vim @8.0.0891_0+huge+python36 (active)
Macintosh-2:~% ls /opt/local/bin/python3*6*
/opt/local/bin/python3.6@               /opt/local/bin/python3.6m@
/opt/local/bin/python3.6-config@        /opt/local/bin/python3.6m-config@
Macintosh-2:~% ls -l python3
ls: python3: No such file or directory
Macintosh-2:~% ls -l python3
lrwxr-xr-x  1 root  wheel  24  5 Sep 20:50 /opt/local/bin/python3@ -> 
/opt/local/bin/python3.6
Macintosh-2:~% python3
Python 3.6.2 (default, Sep  5 2017, 20:47:49) 
[GCC 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.42)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 
Python(21762,0x7fffb987c3c0) malloc: *** error for object 0x10d930640: pointer 
being freed was not allocated
*** set a breakpoint in malloc_error_break to debug
Abort
Macintosh-2:~% exit


Process:               Python [21824]
Path:                  
/opt/local/Library/Frameworks/Python.framework/Versions/3.6/Resources/Python.app/Contents/MacOS/Python
Identifier:            Python
Version:               3.6.2 (3.6.2)
Code Type:             X86-64 (Native)
Parent Process:        tcsh [21632]
Responsible:           Python [21824]
User ID:               502

Date/Time:             2017-09-06 00:10:55.716 +0100
OS Version:            Mac OS X 10.12.6 (16G29)
Report Version:        12
Anonymous UUID:        6725F168-5BEC-B1B1-5C9F-DF78A4ED392F

Sleep/Wake UUID:       94F81595-798C-4DC6-9AE9-4E0D88E9F346

Time Awake Since Boot: 160000 seconds
Time Since Wake:       4800 seconds

System Integrity Protection: enabled

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

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
abort() called
*** error for object 0x10082c640: pointer being freed was not allocated
 

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib              0x00007fffb0a96d42 __pthread_kill + 10
1   libsystem_pthread.dylib             0x00007fffb0b84457 pthread_kill + 90
2   libsystem_c.dylib                   0x00007fffb09fc420 abort + 129
3   libsystem_malloc.dylib              0x00007fffb0aebfe7 free + 530
4   org.python.python                   0x00000001003cc152 PyOS_Readline + 285
5   org.python.python                   0x00000001003ce4e8 tok_nextc + 95
6   org.python.python                   0x00000001003cd349 tok_get + 166
7   org.python.python                   0x00000001003cd287 PyTokenizer_Get + 14
8   org.python.python                   0x00000001003cc3fb parsetok + 95
9   org.python.python                   0x000000010048d45a 
PyParser_ASTFromFileObject + 101
10  org.python.python                   0x000000010048d29c 
PyRun_InteractiveOneObject + 426
11  org.python.python                   0x000000010048cbe4 
PyRun_InteractiveLoopFlags + 105
12  org.python.python                   0x000000010048cb48 PyRun_AnyFileExFlags 
+ 60
13  org.python.python                   0x00000001004a0ce7 Py_Main + 3655
14  org.python.python                   0x00000001003c4e1d 0x1003c3000 + 7709
15  libdyld.dylib                       0x00007fffb0968235 start + 1

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x0000000000000006  rcx: 0x00007fff5f83bed8  
rdx: 0x0000000000000000
  rdi: 0x0000000000000307  rsi: 0x0000000000000006  rbp: 0x00007fff5f83bf00  
rsp: 0x00007fff5f83bed8
   r8: 0x0000000000000000   r9: 0x0000000000000000  r10: 0x0000000008000000  
r11: 0x0000000000000206
  r12: 0x00007fe3a0019a00  r13: 0x0000000000000001  r14: 0x00007fffb987c3c0  
r15: 0x0000000000000000
  rip: 0x00007fffb0a96d42  rfl: 0x0000000000000206  cr2: 0x00007fffb985e128
  
Logical CPU:     0
Error Code:      0x02000148
Trap Number:     133


Binary Images:
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<6FF0B3CF-0B96-3470-BCEF-A670EFF683D7> 
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2001-2017 Python Software Foundation. - 3.6.2) 
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External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 85287
    thread_create: 0
    thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=132.6M resident=0K(0%) 
swapped_out_or_unallocated=132.6M(100%)
Writable regions: Total=55.7M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) 
unallocated=55.7M(100%)
 
                                VIRTUAL   REGION 
REGION TYPE                        SIZE    COUNT (non-coalesced) 
===========                     =======  ======= 
Kernel Alloc Once                    8K        2 
MALLOC                            36.3M       10 
MALLOC guard page                   16K        4 
MALLOC_LARGE (reserved)            512K        3         reserved VM address 
space (unallocated)
STACK GUARD                          4K        2 
Stack                             16.0M        2 
VM_ALLOCATE                       2564K        7 
__DATA                            3512K       55 
__LINKEDIT                       115.1M       10 
__TEXT                            17.5M       51 
__UNICODE                          556K        2 
shared memory                        8K        3 
===========                     =======  ======= 
TOTAL                            192.0M      139 
TOTAL, minus reserved VM space   191.5M      139 

Model: MacBookPro11,2, BootROM MBP112.0138.B40, 4 processors, Intel Core i7, 2 
GHz, 16 GB, SMC 2.18f15
Graphics: Intel Iris Pro, Intel Iris Pro, Built-In
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 
0x484D54343147533641465238412D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 
0x484D54343147533641465238412D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x134), Broadcom 
BCM43xx 1.0 (7.21.171.130.1a1)
Bluetooth: Version 5.0.5f1, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM0512F, 500.28 GB
USB Device: USB 3.0 Bus
USB Device: Apple Internal Keyboard / Trackpad
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus: MacBook Pro, Apple Inc., 17.1

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