Python uses the new source when reporting an old exception

[ubershmekel]

BPO	14008
Superseder	bpo-8087: Unupdated source file in traceback

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

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2012-02-14.13:17:51.398>
created_at = <Date 2012-02-14.11:38:58.578>
labels = ['interpreter-core', 'type-bug']
title = 'Python uses the new source when reporting an old exception'
updated_at = <Date 2012-02-14.13:17:51.397>
user = 'https://bugs.python.org/ubershmekel'

bugs.python.org fields:

activity = <Date 2012-02-14.13:17:51.397>
actor = 'flox'
assignee = 'none'
closed = True
closed_date = <Date 2012-02-14.13:17:51.398>
closer = 'flox'
components = ['Interpreter Core']
creation = <Date 2012-02-14.11:38:58.578>
creator = 'ubershmekel'
dependencies = []
files = []
hgrepos = []
issue_num = 14008
keywords = []
message_count = 1.0
messages = ['153337']
nosy_count = 1.0
nosy_names = ['ubershmekel']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = None
status = 'closed'
superseder = '8087'
type = 'behavior'
url = 'https://bugs.python.org/issue14008'
versions = ['Python 3.3']

[ubershmekel]

I ran the following code:

    import time
    time.sleep(10)
    print 1 / 0

And then modified the source before it hit the exception, python prints out the wrong lines from the new source file.

    e:\Dropbox\dev\python\metricbot>c:\python32\python test.py
    Traceback (most recent call last):
      File "test.py", line 3, in <module>
        alkdf;alsdkf;l
    ZeroDivisionError: division by zero

What should have been printed out:

    e:\Dropbox\dev\python\metricbot>test.py
    Traceback (most recent call last):
      File "E:\Dropbox\dev\python\metricbot\test.py", line 3, in <module>
        print 1 / 0
    ZeroDivisionError: integer division or modulo by zero

Although this is a toy example, I did run in to the problem when working on a long running script that I was upgrading.

Tested it and got the same results on python 2.7 and 3.2.