rtu-dataframe

from django.db import models, connection

"""
Haversine formula in Django using Postgres SQL
Queries a model for all rows that are within a certain radius (given in meters) of a central point.

The 'location_model' placeholder should be raplaced with the name of the table (full name) that includes a latitude and longitude column.

The latitude and longitude columns should be decimal fields.

rtu-dataframe

# An R script to estimate MQ gas sensors correlation curve and compute Ro, min and max Rs/Ro
#
# Copyright (c) Davide Gironi, 2016
#
# Released under GPLv3.
# Please refer to LICENSE file for licensing information.

# How to use this script:
# 1) set limits as datasheet curve ("xlim" and "ylim")
#    ex.

rtu-dataframe

#!/usr/bin/env bash
#
# Usage: dev_signed_cert.sh HOSTNAME
#
# Creates a CA cert and then generates an SSL certificate signed by that CA for the
# given hostname.
#
# After running this, add the generated dev_cert_ca.cert.pem to the trusted root
# authorities in your browser / client system.
#

rtu-dataframe

def retry(times, exceptions):
    """
    Retry Decorator

    Retries the wrapped function/method `times` times if the exceptions listed
    in ``exceptions`` are thrown

    :param times: The number of times to repeat the wrapped function/method
    :type times: Int
    :param Exceptions: Lists of exceptions that trigger a retry attempt