AdrianDeAnda

__import__("random").randrange(1,99,2)

nrinaudo

Introduction

I was recently asked to explain why I felt disappointed by Haskell, as a language. And, well. Crucified for crucified, I might as well criticise Haskell publicly.

First though, I need to make it explicit that I claim no particular skill with the language - I will in fact vehemently (and convincingly!) argue that I'm a terrible Haskell programmer. And what I'm about to explain is not meant as The Truth, but my current understanding, potentially flawed, incomplete, or flat out incorrect. I welcome any attempt at proving me wrong, because when I dislike something that so many clever people worship, it's usually because I missed an important detail.

Another important point is that this is not meant to convey the idea that Haskell is a bad language. I do feel, however, that the vocal, and sometimes aggressive, reverence in which it's held might lead people to have unreasonable expectations. It certainly was my case, and the reason I'm writing this.

Type classes

I love the concept of type class

l4sh

def find_bad_cfds(cfds):
    invoice_types = ['Ingreso', 'Egreso']
    bad_cfds = []
    for cfd in cfds:
        comprobante = {}
        for invoice_type in invoice_types:
            comprobante = cfd.metadata.get('IR', {}).get(invoice_type, {}).get('Comprobante')
            if comprobante:
                break
        descuento = comprobante.get('Descuento', 0)

barrachri

from collections import namedtuple
from sys import getsizeof
from typing import NamedTuple


test_namedtuple = namedtuple("TEST", "a b c d f")
a = test_namedtuple(a=1,b=2,c=3,d=4,f=5)

class TestSlots():
    __slots__ = ["a","b","c","d","f"]

milmazz

The Imposter's Handbook

This a collection of interesting links found in The Imposter's Handbook by Rob Conery.

Content:

• Introduction
• A Little History
• The Tools
• Customizing The Terminal

syafiqfaiz

1. Change your database RDS instance security group to allow your machine to access it.
   • Add your ip to the security group to acces the instance via Postgres.
2. Make a copy of the database using pg_dump
   • $ pg_dump -h <public dns> -U <my username> -f <name of dump file .sql> <name of my database>
   • you will be asked for postgressql password.
   • a dump file(.sql) will be created
3. Restore that dump file to your local database.
   • but you might need to drop the database and create it first
   • $ psql -U <postgresql username> -d <database name> -f <dump file that you want to restore>

• the database is restored

blha303

#!/usr/bin/env python3
import requests
from flask import *
import random

from apscheduler.schedulers.background import BackgroundScheduler

app = Flask(__name__)
scheduler = BackgroundScheduler()
url = "https://reddit.com/r/gonewild/comments.json?limit=200"

ohanhi

Learning FP the hard way: Experiences on the Elm language

by Ossi Hanhinen, @ohanhi

with the support of Futurice 💚.

Licensed under CC BY 4.0.

Editorial note

andrewgodwin

Small bag / wearing

• Passport (+I-797B)
• Hoodie
• Bluetooth headphones
• Surface
• 3DS/Vita (+games for 3DS)
• Nexus 9
• Kindle

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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