<commit_before>from itertools import dropwhile, islice, takewhile
import subprocess

from thefuck.utils import get_closest, replace_argument, for_app, which, cache


def get_golang_commands():
    proc = subprocess.Popen('go', stderr=subprocess.PIPE)
    lines = [line.decode('utf-8').strip() for line in proc.stderr.readlines()]
    lines = dropwhile(lambda line: line != 'The commands are:', lines)
    lines = islice(lines, 2, None)
    lines = takewhile(lambda line: line, lines)
    return [line.split(' ')[0] for line in lines]


if which('go'):
    get_docker_commands = cache(which('go'))(get_golang_commands)


@for_app('go')
def match(command):
    return 'unknown command' in command.output


def get_new_command(command):
    closest_subcommand = get_closest(command.script_parts[1], get_golang_commands())
    return replace_argument(command.script, command.script_parts[1],
                            closest_subcommand)<commit_msg>#933: Correctly redefine the function with a cache<commit_after>from itertools import dropwhile, islice, takewhile
import subprocess

from thefuck.utils import get_closest, replace_argument, for_app, which, cache


def get_golang_commands():
    proc = subprocess.Popen('go', stderr=subprocess.PIPE)
    lines = [line.decode('utf-8').strip() for line in proc.stderr.readlines()]
    lines = dropwhile(lambda line: line != 'The commands are:', lines)
    lines = islice(lines, 2, None)
    lines = takewhile(lambda line: line, lines)
    return [line.split(' ')[0] for line in lines]


if which('go'):
    get_golang_commands = cache(which('go'))(get_golang_commands)


@for_app('go')
def match(command):
    return 'unknown command' in command.output


def get_new_command(command):
    closest_subcommand = get_closest(command.script_parts[1], get_golang_commands())
    return replace_argument(command.script, command.script_parts[1],
                            closest_subcommand)
{'fraction_non_alphanumeric': 0.1170378042465044, 'fraction_numerical': 0.006732263076126359, 'mean_word_length': 4.583815028901734, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2959528', 'n_tokens_mistral': 616, 'n_tokens_neox': 595, 'n_words': 150}