kenoss

from typing import Protocol

class Ring(Protocol):
    @staticmethod
    def zero() -> "Ring":
        ...

    @staticmethod
    def identity() -> "Ring":
        ...

kenoss

元々の話題: python 初学者にオススメできる例外についての知見あれば

• そもそも壊れてはいけない用途で python を使ってはいけない. なので適当でも許される. (暴論)
• linter を入れる.
  • 特に flake8 とかは B001 とかを警告してくれるので大事.
  • (脇道に逸れるが, linter はまずは linter/formatter orchestrator の pysen を入れておけばよい. 初学者なら poetry + pytest + pysen から始めるのがオススメ. 例: https://github.com/kenoss/pyproject-indirect-import-detector)
• Pythonic way を把握しておく.
  • document
• https://docs.python.org/ja/3/tutorial/errors.html

kenoss

$ bluetoothctl
# scan on
...
[NEW] Device <...> HHKB-Hybrid_1
...
# scan off
# pair <...>
# connect <...>
# exit

kenoss

import invoke
import invoke_dryable as dryable


@invoke.task
@dryable.default_dryrun
def build(c, clean=False):
    if clean:
        print("Cleaning!")

kenoss

お仕事募集中です.

Last update: 2019-04-30

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kenoss

c.f.

pypa/setuptools#885 (comment)

error

$ pip install google-cloud-storage
Collecting google-cloud-storage
  Downloading https://files.pythonhosted.org/packages/d7/62/a2e3111bf4d1eb54fe86dec694418644e024eb059bf1e66ebdcf9f98ad70/google_cloud_storage-1.13.0-py2.py3-none-any.whl (59kB)

kenoss

// client.rs

use std::env;
use std::io::Write;
use std::os::unix::net::UnixStream;
use std::path::Path;

use common::SOCKET_PATH;

mod common;

kenoss

function peco-find-file() {
    local command
    if git rev-parse 2> /dev/null; then
        command='git ls-files'
    else
        command='find . -type f'
    fi
    local selected_files=$(eval $command | peco --prompt "[find file]")

    LBUFFER="${LBUFFER% } $(echo ${selected_files} | tr '\n' ' ')"

kenoss

function peco-find-file() {
    local source_files
    if git rev-parse 2> /dev/null; then
        source_files=$(git ls-files)
    else
        source_files=$(find . -type f)
    fi
    local selected_files=$(echo $source_files | peco --prompt "[find file]")

    LBUFFER="${LBUFFER% } $(echo ${selected_files} | tr '\n' ' ')"

kenoss

;;; helm in org

(defclass keu-helm-source-multi-occur-org-headers (helm-source-multi-occur)
  ((search :initform '(keu-helm-occur-org-headers-search))
;   (search-strict :initform t)
   (matchplugin :initform nil)))

;; Mimic of helm-occur.  IT IS A MIMIC!
(defun keu-helm-occur-org-headers ()
  "helm-occur for org headers."