davidbauer

#!/usr/bin/env python

# assuming a csv file with a name in column 0 and the image url in column 1

import urllib

filename = "images"

# open file to read
with open("{0}.csv".format(filename), 'r') as csvfile:

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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stonehippo

Install a new Ruby with rbenv on Mac OS (and make yourself a superhero)

If you're doing stuff with Ruby on a Mac, e.g. installling Jekyll or something, by default you'll end up having to use the sudo command to do stuff, since the permission to modify the default config is not available to your user account.

This sucks and should be avoided. Here's how to fix that.

Installing a new Ruby

To make this better, we are going install a new, custom Ruby. This used to be a big, scary thing, but thanks to the awesome tools Homebrew and rbenv, it's a snap.*

A word of warning: you will have to use Terminal to install this stuff. If you are uncomfortable with text, words, and doing stuff with your computer beyond pointing and hoping, this may not work well for you. But if that's the case, I'm not sure why you were trying to use Ruby in the first place.

tnguyen14

When you modify a file in your repository, the change is initially unstaged. In order to commit it, you must stage it—that is, add it to the index—using git add. When you make a commit, the changes that are committed are those that have been added to the index.

git reset changes, at minimum, where your current branch is pointing. The difference between --mixed and --soft is whether or not your index is also modified. So, if we're on branch master with this series of commits:

- A - B - C (master)

HEADpoints to C and the index matches C.

--soft

wrburgess

RBENV

• rbenv install -l
• rbenv install 2.6.5
• rbenv local 2.6.5
• gem install bundler
• bundle install

RVM

non

What is the appeal of dynamically-typed languages?

Kris Nuttycombe asks:

I genuinely wish I understood the appeal of unityped languages better. Can someone who really knows both well-typed and unityped explain?

I think the terms well-typed and unityped are a bit of question-begging here (you might as well say good-typed versus bad-typed), so instead I will say statically-typed and dynamically-typed.

I'm going to approach this article using Scala to stand-in for static typing and Python for dynamic typing. I feel like I am credibly proficient both languages: I don't currently write a lot of Python, but I still have affection for the language, and have probably written hundreds of thousands of lines of Python code over the years.

mpj

var animals = [
  { name: 'Fluffykins', species: 'rabbit' },
  { name: 'Caro',       species: 'dog' },
  { name: 'Hamilton',   species: 'dog' },
  { name: 'Harold',     species: 'fish' },
  { name: 'Ursula',     species: 'cat' },
  { name: 'Jimmy',      species: 'fish' }
]

tomdalling

#!/user/bin/env ruby

require 'bundler/inline'
gemfile(true) do
  source 'https://rubygems.org'
  gem 'sinatra', '~> 1.4'
  gem 'bcrypt', '~> 3.1'
end

require 'sinatra/base'

slavakurilyak

Download images stored as URLs from a CSV file

Dealing with a image dataset? Dealing with CSVs intead of JPGs? Use this script to download images from a CSV file, which were originally stored as URLs.

Usage

To download full resolution images, type:

$ python download-images-from-csv.py 

kirs

# Cleans up branches like:
# if Shopify.rails_next?
#   # Rails 5 login
# else 
#   # Rails 4 login
# end
module RuboCop
  module Cop
    module ShopifyRails
      class RailsNextUnless < Cop