eezis

This gist pertains to a Bad Request(400) error when trying to access an EC2 instance running django . . . 

I set up an EC2 server, installed django, started runserver and tested. The result was

Bad Request (400)

When using Django 1.5 and higher, if you specify DEBUG=False in the settings.py file, you must also specify ALLOWED_HOSTS 
or you will recieve a "Bad Request (400)" error message when attempting to retrieve a page.

On an Amazone EC2 instance, if you are ***testing*** with the public DNS, then you should include the public DNS as one of the allowed hosts.

eezis

# -*- coding: utf-8 -*-

import os
import sys
from pprint import pprint

import ccxt
import pandas as pd

PHEMEX_API_KEY = os.getenv('PHEMEX_API_KEY')

eezis

While upgrading EC2 servers behind an AWS Elastic Load Balancer (ELB) I noticed that the nginx error log was reporting that my health-check was getting molested. Here is the simple curl test showing the 200 result. The error message, then the solution follow.

$ curl -I localhost/ELB-health-check

HTTP/1.1 200 OK
Server: nginx
Date: Sun, 06 Nov 2022 16:59:46 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 105

eezis

If you are updating and older Django project and getting an error in this form:

TypeError: attribute name must be string, not 'bytes'

It's likely that you have existing migrations in your code base that have legacy byte strings. I found them in two places. In the related_name as shown below

('article', models.ForeignKey(related_name=b'author', to='core.Article', on_delete=models.CASCADE, null=True)),

eezis

Quick guide to getting inlineradio buttons when using boolean values with Crispy Forms.


1. create chocies
  BOOLEAN_YN = (
    (True, u'Yes'),
    (False, u'No'),  
  )

2. update model to point at the choices

eezis

import { firestorePlugin } from 'vuefire'
import { firebase } from '@firebase/app'
import 'firebase/firestore'
import 'firebase/auth'
import firebaseConfig from '../../firebaseConfig'

let firebaseApp = firebase.initializeApp(firebaseConfig)
let firebaseAuth = firebaseApp.auth()

const db = firebaseApp.firestore()

eezis

import sys
import subprocess
import multiprocessing


# use htop to see the utilization rates spread across cores
# use locust --help to see all the options

# the cmd launches 500 concurrent users on each core, hatch 5 per second, issue 10k requests then stops 
# logs to results.txt, prints the summary in the terminal

eezis

"""
see my comment below the gist
"""
import re
import os
from requests_html import HTMLSession

BASE_ETHERSCAN_URL = "https://etherscan.io/address/"

eezis

# inside an active poetry shell . . . 

$ which python
/home/eezis/.cache/pypoetry/virtualenvs/airflow-_F6chCj4-py3.8/bin/python

eezis

Keybase proof

I hereby claim:

• I am eezis on github.
• I am ernestezis (https://keybase.io/ernestezis) on keybase.
• I have a public key ASCKvfwAKTfOPX-0ro-E-kpjgG6zedSp2JUGk-4zSCRcuwo

To claim this, I am signing this object: