[MacPorts] #53409: python36 crashes with malloc error

[MacPorts]

#53409: python36 crashes with malloc error
---------------------+----------------------
 Reporter:  jsalort  |      Owner:
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.4.0
 Keywords:           |       Port:  python36
---------------------+----------------------
 I am running python36 on Sierra with MacPorts 2.4.0.

 {{{
 % port installed python36
 The following ports are currently installed:
   python36 @3.6.0_0 (active)
 % port version
 Version: 2.4.0
 }}}

 It crashes when I start the REPL:

 {{{
 % python3.6
 Python 3.6.0 (default, Dec 23 2016, 12:50:55)
 [GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.38)] on darwin
 Type "help", "copyright", "credits" or "license" for more information.
 >>> a=2
 Python(26362,0x7fffab1043c0) malloc: *** error for object 0x108253640:
 pointer being freed was not allocated
 *** set a breakpoint in malloc_error_break to debug
 Abort trap: 6
 }}}

 The same code snippet works without the REPL:

 {{{
 % python3.6 -c "a=2; print(a)"
 2
 }}}

 No python36 package is installed apart py36-readline.

 The other installed python versions are perfectly working.

 {{{
 % port installed "python*"
 The following ports are currently installed:
   python-mode.el @1.0_0 (active)
   python2_select @0.0_2 (active)
   python3_select @0.0_1 (active)
   python27 @2.7.12_2
   python27 @2.7.13_0 (active)
   python34 @3.4.5_1
   python34 @3.4.5_2
   python34 @3.4.6_0 (active)
   python35 @3.5.2_1
   python35 @3.5.2_2
   python35 @3.5.3_0 (active)
   python36 @3.6.0_0 (active)
   python_select @0.3_7 (active)
 }}}

--
Ticket URL: <https://trac.macports.org/ticket/53409>
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