[New-bugs-announce] [issue34989] python-gdb.py fails with TypeError("'FakeRepr' object is not subscriptable") is gdb fails to read debug symbols

[STINNER Victor]

New submission from STINNER Victor <vstinner at redhat.com>:

On Fedora 28, gdb fails to read (some?) debug symbols:
"Dwarf Error: could not find partial DIE containing offset 0x316 [in module /usr/lib/debug/usr/bin/python3.6-3.6.6-1.fc28.x86_64.debug]"
https://bugzilla.redhat.com/show_bug.cgi?id=1613614

In this case, the "py-bt" command of python-gdb.py fails with a TypeError:

(gdb) py-bt
Traceback (most recent call first):
  <unknown at remote 0x7ffff7e5f7e0>
Python Exception <class 'TypeError'> 'FakeRepr' object is not subscriptable: 
Error occurred in Python command: 'FakeRepr' object is not subscriptable


python-gdb.py shouldn't fail on such case, but handle the error.

Attached PR fix this issue.

----------
components: Demos and Tools
messages: 327742
nosy: vstinner
priority: normal
severity: normal
status: open
title: python-gdb.py fails with TypeError("'FakeRepr' object is not subscriptable") is gdb fails to read debug symbols
versions: Python 2.7, Python 3.6, Python 3.7, Python 3.8

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34989>
_______________________________________