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# Rakefile
# パターンにマッチするファイルのリストを生成
Src = FileList['src/*.js']

# dist.jsの生成にはSrcに含まれるファイルが必要と定義
# do〜endの中で具体的な生成方法を定義
file 'dist.js' => Src do |t|
  # t.sourcesがソースファイルのリストなので、それをスペースで連結したコマンドラインを生成
  sh "browserify -o dist.js #{t.sources.join(' ')}"
end

doloopwhile

# インターネットから直接データをダウンロードする

import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
import datetime as dt
import statsmodels.formula.api as sm
import itertools
import math

doloopwhile

import sys
import csv
import pandas as pd
from pprint import pprint
from sklearn import linear_model
from sklearn import svm
from sklearn.preprocessing import StandardScaler

def read_csv(filename):
    df = pd.read_csv(filename)

doloopwhile

What is PyExecJS and Python-CoffeeScript.

They are Python libraries that I developped on 2011.

• PyExecJS: Automatically picks the best runtime available to evaluate your JavaScript program.
• Python-CoffeeScript: A bridge to the JS CoffeeScript compiler.

They are ports of ruby gems with same name (execjs and ruby-coffee-script).

The aim of them were to compile CoffeeScript code on Windows XP.

doloopwhile

#!/bin/bash
set -euC
if [ "$#" -eq 0 ]; then
  echo 'git sed COMMAND [PATH [PATH[...]]]' >&2
  exit 1
fi

if which gsed > /dev/null; then
  SED=gsed # for macOS
else

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$ git ls-files | xargs -n 1 sed -i 's|find_by_admin|find_by(type: :admin)|g'

doloopwhile

class CsvFormController < ApplicationController
  # 「名前・年齢・メールアドレス」のCSVファイルをアップロードして、Userを作れる画面
  #
  #   太郎,32,[email protected]
  #   二郎,30,[email protected]
  #   三郎,27,[email protected]
  def upload
    rows = CSV.parse(params[:file].read)
    UserUploadJob.perform_later(rows: rows)
  end

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#!/bin/bash
# PS1の設定

C() {
  case $1 in
    black)    echo -e -n "\033[1;30m";;
    red)      echo -e -n "\033[1;31m";;
    green)    echo -e -n "\033[1;32m";;
    yellow)   echo -e -n "\033[1;33m";;
    blue)     echo -e -n "\033[1;34m";;

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'''
Variable width bytes representation of uint64_t.

Inspired by Ruby interpreter。
https://techlife.cookpad.com/entry/2019/09/26/143000

> 0x0000000000000000 - 0x000000000000007f: 1byte  | 1XXXXXXX |
> 0x0000000000000080 - 0x0000000000003fff: 2bytes | 01XXXXXX | XXXXXXXX |
> 0x0000000000004000 - 0x00000000001fffff: 3bytes | 001XXXXX | XXXXXXXX | XXXXXXXX |
> 0x0000000000020000 - 0x000000000fffffff: 4bytes | 0001XXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |

doloopwhile