sys.excepthook does not work with -m command line switch

[tebeka]

BPO	1650899
Nosy	@tebeka

^{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 2007-02-02.19:42:14.000>
created_at = <Date 2007-02-02.19:27:30.000>
labels = ['interpreter-core', 'invalid']
title = 'sys.excepthook does not work with -m command line switch'
updated_at = <Date 2007-02-02.19:42:14.000>
user = 'https://github.com/tebeka'

bugs.python.org fields:

activity = <Date 2007-02-02.19:42:14.000>
actor = 'tebeka'
assignee = 'none'
closed = True
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2007-02-02.19:27:30.000>
creator = 'tebeka'
dependencies = []
files = []
hgrepos = []
issue_num = 1650899
keywords = []
message_count = 2.0
messages = ['31163', '31164']
nosy_count = 1.0
nosy_names = ['tebeka']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue1650899'
versions = ['Python 2.5']

[tebeka]

crashlog.py is the following:
import sys

  def excepthook(type, value, traceback):
      print "BUMMER"

  sys.excepthook = excepthook

When crash.py is like:
import crashlog
raise ValueError("so sad")

The it works as expected:
[mtebeka@lakshmi - 11:22] ~ $python crash.py
BUMMER
[mtebeka@lakshmi - 11:23] ~ $

However when I try to load crashlog using -m and leave crash.py like:
raise ValueError("so sad")

The nothing (not even original excepthook is called):
[mtebeka@lakshmi - 11:23] ~ $python -m crashlog crash.py
[mtebeka@lakshmi - 11:25] ~ $

[tebeka]

Didn't understand how -m works, my bad