Invalid line number in Exception traceback with header # -*- coding: xxx -*-

[vstinner]

BPO	3973
Nosy	@pitrou, @vstinner
Superseder	bpo-2384: [Py3k] line number is wrong after encoding declaration

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2008-09-26.11:52:29.107>
created_at = <Date 2008-09-26.10:52:11.236>
labels = []
title = 'Invalid line number in Exception traceback with header # -*- coding: xxx -*-'
updated_at = <Date 2008-09-26.11:52:29.099>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2008-09-26.11:52:29.099>
actor = 'pitrou'
assignee = 'none'
closed = True
closed_date = <Date 2008-09-26.11:52:29.107>
closer = 'pitrou'
components = []
creation = <Date 2008-09-26.10:52:11.236>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 3973
keywords = []
message_count = 2.0
messages = ['73841', '73842']
nosy_count = 2.0
nosy_names = ['pitrou', 'vstinner']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = None
status = 'closed'
superseder = '2384'
type = None
url = 'https://bugs.python.org/issue3973'
versions = ['Python 3.0']

[vstinner]

Short example:
---
# -- coding: ASCII --
raise Exception("line 2")
---

Result:
----

Traceback (most recent call last):
  File "plop.py", line 3, in <module>

Exception: line 2
----

The problem is around newtracebackobject() which calls
PyCode_Addr2Line(). It maybe a bug is frame->co_lnotab generation.

This bus is specified to python3 (trunk).

[pitrou]

Looks like a duplicate of bpo-2384. Do you confirm?