blame_flake8.py

import subprocess
import sys


flake8 = ['flake8'] + sys.argv[1:]
proc = subprocess.Popen(flake8, stdout=subprocess.PIPE)

for line in proc.stdout:
    filename, row, col, extra = [
        x.strip().decode('utf8')
        for x in line.split(b':', 3)]

    msgcolor = '2'
    if extra[0] == 'E':
        msgcolor = '1'
    elif extra[0] == 'F':
        msgcolor = '5'
    elif extra[0] == 'W':
        msgcolor = '3'

    print("\x1b[1m{}\x1b[0;32m:{}\x1b[0;33m:{}\x1b[0m \x1b[3{}m{}\x1b[0m"
          .format(filename, row, col, msgcolor, extra))

    blame = subprocess.check_output(
        ['git', 'blame', filename, '-L', '{0},{0}'.format(row)]
        ).strip().decode('utf8')
    print('    {}'.format(blame))

    print('')