py_compile.py crashed with SIGSEGV in freechildren()

[Jeremiah Njoroge]

updating the system via apt-get update/dist-upgrade when the crash occurred.

Observed the following message in the terminal console

Errors were encountered while processing:
 python2.7
 python
 libpython2.7-dbg:amd64
 python2.7-dbg
 libpython-dbg:amd64
 python-dbg
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: libpython2.7-minimal 2.7.4-1ubuntu1
Uname: Linux 3.9.0-030900rc5-generic x86_64
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
Date: Mon Apr 8 09:11:56 2013
ExecutablePath: /usr/lib/python2.7/py_compile.py
InstallationDate: Installed on 2013-03-19 (19 days ago)
InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Alpha amd64 (20130319)
InterpreterPath: /usr/bin/python2.7
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x4d7ac8 <freechildren+152>: mov 0x18(%r12),%r11d
 PC (0x004d7ac8) ok
 source "0x18(%r12)" (0x22ca18b675) not located in a known VMA region (needed readable region)!
 destination "%r11d" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: python2.7
StacktraceTop:
 freechildren (n=0x22ca18b65d) at ../Parser/node.c:143
 freechildren (n=0x7f086b73b390) at ../Parser/node.c:144
 freechildren (n=0x2416690) at ../Parser/node.c:144
 freechildren (n=0x7f086b7352d8) at ../Parser/node.c:144
 freechildren (n=0x7f086b7521e8) at ../Parser/node.c:144
Title: py_compile.py crashed with SIGSEGV in freechildren()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Matthias Klose (doko)]

closing, only seen on Ubuntu 13.04 apparently