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### UPDATE: Use https://postgresapp.com that contains Universal build wih multiple Postgres engines

# 0. install a Postgres

  # we use HomeBrew for this
  brew install postgres
  # init file structure for all databases
  initdb /usr/local/var/postgres

# 1. create new user for a database

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What I need to do

I opened .py file to edit in SublimeText project. Inported library (from django import db) and wrote db. to show autocompletion. But nothing happens.

Step-by-step guide

SublimeText running without JEDI plugin installed

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#API domains

https://desktopapps.ryanair.com

https://api.ryanair.com

##Airports

https://api.ryanair.com/aggregate/3/common?embedded=airports,countries,cities,regions,nearbyAirports,defaultAirport&market=en-gb

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Linking directory in ReactJS project

I found that users of Create-React-App script have issues with building few projects that are based on the same "core" library. Let's imagine that you have a ui directory where you keep all UI React components. And you have two projects - blog and shop.

Now you wish to use the shared UI components in both these projects. But if you will create a symlink to a "raw" source code (where you use ES2015) - you will see that your code can't be imported, because it expects that they should be already compiled.

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"""
>>> 1024+512+256+128+64+32+16+8+4+2+1
2047
>>> bin(2047)
'0b11111111111'
"""

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# Edit file and add there next function:
nano ~/.zshrc
# - OR -
nano ~/.profile

# Paste this function in the file:

function fix_virtualenv {
  #
  # Usage: fix_virtualenv project_name

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# Task: Given a number of tree levels. Print a Christmas tree with the given levels, filled by star symbols (*).

# Example:
#
# print_a_tree(20)
#
#                    *
#                   ***
#                  *****
#                 *******