SublimeText2とSublimeLinter - Python3の構文チェック - ref: http://qiita.com/items/f1bbd2917025494d021f

file1.sh

cd ~/Library/Application Support/Sublime Text 2/Packages/Python
cp Python.tmLanguage Python3.tmLanguage

file2.txt

{
    "sublimelinter_executable_map": {
        "python3": "python3版flake8へのパス"
    }
}

file3.txt

NUM = STR = ELLIPSIS = ignore

python3.py

import re
from base_linter import BaseLinter, INPUT_METHOD_FILE


CONFIG = {
    'language': 'Python3',
    'executable': 'flake8',
    'test_existence_args': ['--version'],
    'lint_args': '{filename}',
    'input_method': INPUT_METHOD_FILE # 保存時のみ。リアルタイムチェックしたい場合はINPUT_METHOD_TEMP_FILEにする
}


class Linter(BaseLinter):
    def parse_errors(self, view, errors, lines, errorUnderlines, violationUnderlines, warningUnderlines, errorMessages, violationMessages, warningMessages):
        for line in errors.splitlines():
            match = re.match(r'^.+:(?P<line>\d+):(?P<offset>\d*):?\s+(?P<error>.+)', line)
            if match:
                error, line, offset = match.group('error'), match.group('line'), match.group('offset')
                if not error.startswith('E501'):
                    self.add_message(int(line), lines, '[{0}: {1}]'.format(offset, error), errorMessages)