lsloan

Mathematical Summations in Python

Problem

I saw a video that claimed the following mathematical summation…

$$\sum_{\substack{i=0 \\ i\neq 4}}^{n} i$$

lsloan

<?php

/**
 * Class BetterEnum
 *
 * A pure-PHP alternative to SplEnum, although only a 99% compatible replacement for it.
 *
 * See: http://php.net/manual/en/class.splenum.php
 *
 * To declare an enum class, subclass BetterEnum and define the names and values as constants.

lsloan

Copy Bitbucket repo to GitHub

Whenever possible, use GH's "Import repository" feature.

The import feature doesn't always work, though. In my experience, I tried to import a repo and it failed with a generic message. I had to contact GH support to ask for help. They told me my repo had a large file (>100MB), which couldn't be added to GH directly. I had to either remove the file or store it in GH LFS. In this case, one of the CLI methods below are needed:

CLI: Copy the master branch only (OK)

lsloan

lsloan

def time_format(seconds: int) -> str:
    """
    From: https://stackoverflow.com/a/68321739/543738
    """

    if seconds is not None:
        seconds = int(seconds)
        d = seconds // (3600 * 24)
        h = seconds // 3600 % 24
        m = seconds % 3600 // 60

lsloan

<?php
require_once 'vendor/autoload.php';

use IMSGlobal\Caliper\actions\Action;
use IMSGlobal\Caliper\Client;
use IMSGlobal\Caliper\context\Context;
use IMSGlobal\Caliper\entities\agent\Person;
use IMSGlobal\Caliper\entities\agent\SoftwareApplication;
use IMSGlobal\Caliper\entities\media\MediaLocation;
use IMSGlobal\Caliper\entities\media\VideoObject;

lsloan

I wanted to know: How can I get the current timestamp for UTC in ISO 8601 format to appear in the body data of a Postman request?

After reading some of the Postman documentation and online comments, this is the solution (using Postman v5.0.1 for Chrome 58.0.3029.110 on macOS 10.12.5) I used:

1. In the Builder, while editing a request, click the "Pre-request Script" heading below the URL field.

2. In the editor field that appears, enter this single line of JavaScript:

   postman.setGlobalVariable('timestampUtcIso8601', (new Date()).toISOString());

lsloan

# https://stackoverflow.com/questions/39928401/recover-db-password-stored-in-my-dbeaver-connection

import sys
import base64

print(sys.argv[1])

PASSWORD_ENCRYPTION_KEY = b"sdf@!#$verf^wv%6Fwe%$$#FFGwfsdefwfe135s$^H)dg"

lsloan

# https://stackoverflow.com/questions/39928401/recover-db-password-stored-in-my-dbeaver-connection

# requires pycryptodome lib (pip install pycryptodome)

import sys
import base64
import os
import json
from Crypto.Cipher import AES

lsloan