python3 py_compile does not ignore UTF-8 BOM characters

[ned-deily]

BPO	8168
Nosy	@benjaminp, @ned-deily, @koobs

^{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 2010-03-18.22:39:30.817>
created_at = <Date 2010-03-18.10:43:00.068>
labels = ['library']
title = 'python3 py_compile does not ignore UTF-8 BOM characters'
updated_at = <Date 2014-02-21.13:44:14.081>
user = 'https://github.com/ned-deily'

bugs.python.org fields:

activity = <Date 2014-02-21.13:44:14.081>
actor = 'koobs'
assignee = 'none'
closed = True
closed_date = <Date 2010-03-18.22:39:30.817>
closer = 'benjamin.peterson'
components = ['Library (Lib)']
creation = <Date 2010-03-18.10:43:00.068>
creator = 'ned.deily'
dependencies = []
files = []
hgrepos = []
issue_num = 8168
keywords = []
message_count = 3.0
messages = ['101257', '101288', '211859']
nosy_count = 3.0
nosy_names = ['benjamin.peterson', 'ned.deily', 'koobs']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue8168'
versions = ['Python 3.1', 'Python 3.2']

[ned-deily]

$ cat bom3.py
# coding: utf-8
print("BOM BOOM!")
$ file bom3.py 
bom3.py: UTF-8 Unicode (with BOM) text
$ python3.1
Python 3.1.1+ (r311:74480, Jan 20 2010, 00:37:31) 
[GCC 4.4.3 20100108 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import bom3
BOM BOOM!
>>> import py_compile
>>> py_compile.compile("bom3.py")
  File "bom3.py", line 1
    # coding: utf-8
      ^
SyntaxError: invalid character in identifier

The same test does not fail with python2.6.4.
(Same results on OS X.)

[benjaminp]

Fixed in r79068.

[koobs]

Breadcrumb: this was reported against 3.2 and 3.1, but never backported to the latter.