diegoquintanav

>>> from hello import app
>>> from flask import current_app
>>> app_ctx = app.app_context()
>>> app_ctx.push()
>>> current_app.name
>>> app_ctx.pop()

diegoquintanav

The command $ ls -l, for example, can return a list of the type

total 24
drwxrwxr-x 2 diego diego 4096 feb  2 11:16 logs
drwxrwxr-x 2 diego diego 4096 feb  5 13:42 __pycache__
-rw-rw-r-- 1 diego diego  185 feb  5 13:40 app.py
drwxrwxr-x 2 diego diego 4096 feb  5 13:34 templates
drwxrwxr-x 6 diego diego 4096 feb  2 10:55 venv
-rw-rw-r-- 1 diego diego   64 feb  5 13:41 wsgi.py

diegoquintanav

List the container port address

$ docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_name_or_id

where container_name_or_id can be a map of other docker methods, such as

$ docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $(docker ps -q)

diegoquintanav

Define local model class from remote table

from flask import Flask
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:////tmp/database1.db'
app.config['SQLALCHEMY_BINDS'] = {'remote': 'sqlite:////tmp/database1.db'}

diegoquintanav

<div id="container" data-stuff="my variable">
    <!-- This element's contents will be replaced with your component. -->
</div>
<script>
  window.test = "my react test";
  window.dumbname = "martin"
  // notice that `stuff` is not passed directly, it is passed using `data-stuff="my variable"` through `container.dataset` 
</script>

diegoquintanav

About Ngrok

ngrok allows for rapid tunneling, exposing local servers behind NATs and firewalls to the public internet over secure tunnels. More information in https://ngrok.com/

Installing ngrok

ngrok 1.x is unmaintained and its usage is not encouraged. Instead, follow the instructions on https://ngrok.com/download

1. download the zip file. In my case is for ubuntu_64 16.04

diegoquintanav

Appending a timestamp

$ tail -n 10 -f outputfile | xargs -IL date +"%Y%m%d_%H%M%S:L"

Using ccze

$ (tail -n 10 -f outputfile | xargs -IL date +"%Y%m%d_%H%M%S:L") | ccze

diegoquintanav

set nocompatible              " required
filetype off                  " required

"allow for external clipboard buffers
set clipboard=unnamed

" set numbers on
set nu

      

diegoquintanav

Some examples of metaclasses definitions

Raw, implicit definition

class MetaClass(type): 

    def get_foo(self):
        return self._foo
    

diegoquintanav

from flask_sqlalchemy import make_url
from urllib.parse import quote_plus

def build_connection_string(**params):
    """
    Return the url for MSSQL Azure DB Instances
    """

    connection_string = quote_plus(
        ("DRIVER={driver};"