bkawan

Download Audio from YouTube

-i - ignore errors

-c - continue

-t - use video title as file name

--extract-audio - extract audio track

bkawan

  let unsortedDates =
      ['2018-01-26',
          '2018-01-30',
          '2018-02-13',
          '2018-02-20',
          '2018-02-27',
          '2018-03-01',
          '2018-03-17',
          '2018-03-21',
          '2018-03-06',

bkawan

https://micropyramid.com/blog/django-custom-template-tags-and-filters/

@register.filter(name='one_more')
def another_filter(value_1, value_2):
    return value_1.upper(), value_2.lower()
    
    
@register.filter()
def custom_filter(another_filter_value, value_3):
    value_1, value_2 = another_filter_value

bkawan

Python Environment Setup and Django for Ubuntu/Mac OSX/ Windows

You can install and setup environment for Windows/ Mac OSX also. If you find it difficult, leave me a message.

For Windows please follow this link

 https://www.codingforentrepreneurs.com/blog/install-python-django-on-windows/

 https://docs.djangoproject.com/en/2.0/howto/windows/

For Mac OSX please follow the link below

bkawan

#!/bin/bash

NAME="hello_app"                                  # Name of the application
DJANGODIR=/webapps/hello_django/hello             # Django project directory
SOCKFILE=/webapps/hello_django/run/gunicorn.sock  # we will communicte using this unix socket
USER=hello                                        # the user to run as
GROUP=webapps                                     # the group to run as
NUM_WORKERS=3                                     # how many worker processes should Gunicorn spawn
DJANGO_SETTINGS_MODULE=hello.settings             # which settings file should Django use
DJANGO_WSGI_MODULE=hello.wsgi                     # WSGI module name

bkawan

Toc

Keyboard shortcuts

The IPython Notebook has two different keyboard input modes. Edit mode allows you to type code/text into a cell and is indicated by a green cell border. Command mode binds the keyboard to notebook level actions and is indicated by a grey cell border.

MacOS modifier keys:

• ⌘ : Command

bkawan

Tabs and Windows

Function	Shortcut
Previous Tab	⌘+ Left Arrow
Next Tab	⌘+ Right Arrow
Go to Tab	⌘ + Number
Go to Window	⌘ + Option + Number
Go to Split Pane by Direction	⌘ + Option + Arrow
Go to Split Pane by Order of Use	⌘ + ] , ⌘ + [

bkawan

MySQL

Getting started:

• http://www.sqlteaching.com/
• https://www.codecademy.com/courses/learn-sql

Related tutorials:

• MySQL-CLI: https://www.youtube.com/playlist?list=PLfdtiltiRHWEw4-kRrh1ZZy_3OcQxTn7P
• Analyzing Business Metrics: https://www.codecademy.com/learn/sql-analyzing-business-metrics