Exception.__init__() causes segfault

[ping]

BPO	415879
Nosy	@gvanrossum
Files	ceval.patch: patch to call_method() in ceval.c

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GitHub fields:

assignee = 'https://github.com/gvanrossum'
closed_at = <Date 2001-04-13.15:43:00.000>
created_at = <Date 2001-04-13.13:11:55.000>
labels = ['interpreter-core']
title = 'Exception.__init__() causes segfault'
updated_at = <Date 2001-04-13.15:43:00.000>
user = 'https://bugs.python.org/ping'

bugs.python.org fields:

activity = <Date 2001-04-13.15:43:00.000>
actor = 'gvanrossum'
assignee = 'gvanrossum'
closed = True
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2001-04-13.13:11:55.000>
creator = 'ping'
dependencies = []
files = ['3263']
hgrepos = []
issue_num = 415879
keywords = ['patch']
message_count = 2.0
messages = ['36350', '36351']
nosy_count = 2.0
nosy_names = ['gvanrossum', 'ping']
pr_nums = []
priority = 'high'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue415879'
versions = []

[ping]

Calling an unbound method on a C extension class
without providing an instance can yield a segfault.
Try "Exception.__init__()" or "ValueError.__init__()".

This is a simple fix. The error-reporting bits in
call_method mistakenly treat the misleadingly-named
variable "func" as a function, when in fact it is a
method.
If we let get_func_name take care of the work, all is
fine.

[gvanrossum]

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