genomics-geek

Guide to Virtual Environments

A Virtual Environment is a tool to keep the dependencies required by different projects in separate places, by creating virtual Python environments for them. It solves the “Project X depends on version 1.x but, Project Y needs 4.x” dilemma, and keeps your global site-packages directory clean and manageable.

For example, you can work on a project which requires Django 1.3 while also maintaining a project which requires Django 1.0.

I highly recommend using virtualenvwrapper, it makes your life so much easier!

Set up

1. Install pip

genomics-geek

Guide to set up Mac OSX from a fresh reinstall of the OS

Note:

For new versions of Mac OSX (10.12+), you will most likely run into some errors. To avoid that, install XCode found here

Install Git

https://sourceforge.net/projects/git-osx-installer/files/

git config --global user.name "[Full Name]"

genomics-geek

Installing PostgreSQL on Mac OSX

The easiest way I have found to install PostgreSQL on Mac OSX is by using Postgres.app.

Download Postgres.app

Postgres.app Download

Install

1. Move the downloaded file to ~/Applications
2. Double click

genomics-geek

Guide on how to have your Django web application deployed on Heroku

Just use these two guides from Heroku:

• Deploying Python and Django Apps on Heroku
• Migrating an Existing Django Project
• Using Multiple Buildpacks

If you are migrating an existing Django app, I found these steps to be very helpful!

1. Create the Procfile

genomics-geek

SECRET_KEY=13dfdasfaw3rarfdafjpj*(*&YO&D&FAFAHUH
DEBUG=true
ALLOWED_HOSTS=localhost 0.0.0.0 127.0.0.1
DATABASE_URL=postgres://user:password@localhost:5432/database

genomics-geek

export PIP_REQUIRE_VIRTUALENV=true

gpip(){
    PIP_REQUIRE_VIRTUALENV="" pip "$@"
}
test -f /usr/local/bin/virtualenvwrapper.sh && source /usr/local/bin/virtualenvwrapper.sh
if which pyenv > /dev/null ; then eval "$(pyenv init -)"; fi

genomics-geek

root = true

# Unix-style newlines with a newline ending every file
[*]
charset = utf-8
end_of_line = lf
insert_final_newline = true
trim_trailing_whitespace = true

# Python settings

genomics-geek

# virtual environments
venv

# Python files
*.pyc
__pycache__

# Python Notebook dot files
.ipynb*

genomics-geek

var testsContext = require.context(".", true, /_test$/);
testsContext.keys().forEach(testsContext);

genomics-geek

import expect from 'expect';

describe('Something abstract', () => {
  it('works', () => {
      expect(1).toEqual(1);
  });
});