LouisdeBruijn

import json
import logging
from logging import info

def timestamp_file(file_loc: str) -> str:
    """Adds a date timestamp to the filename.

    :param file_loc: location of file to write to
    :type file_loc: str, bool

LouisdeBruijn

import json

def is_json(string):
    """Check if string is valid JSON."""
    try:
        json_object = json.loads(string)
    except ValueError as e:
        return False

    return True

LouisdeBruijn

document.body.addEventListener( 'click', function (event) {
    if( event.target.className === 'unique_class_name' ) {
        const form = event.target.form;
        const data = new FormData(form);

        const request = new XMLHttpRequest();
        request.open(form.method, form.action, true);
        request.send(data);

        // logFormData(data);

LouisdeBruijn

// logging key-value pairs of FormData object
function logFormData(data) {
    for (const pair of data.entries()) {
        console.log(pair[0] + ": " + pair[1]);
    }
}


// fade out message alerts

LouisdeBruijn

{% block messages %}
        <ul class="messages" id="messages-list">
        {% if messages %}
            {% for message in messages %}
            <li>
                {% if message.tags %}
                     <div class="alert alert-{{ message.tags }} msg fade show" role="alert">{{ message }}</div>
                {% else %}
                    <div class="alert alert-info msg fade show" role="alert">{{ message }}</div>
                {% endif %}

LouisdeBruijn

from django.contrib import messages

@require_http_methods(["GET", "POST"])
@login_required(login_url='/login', redirect_field_name='')
def do_logout(request):
    assert isinstance(request, HttpRequest)

    messages.add_message(request, messages.INFO, '{0} logged out.'.format(request.user))
    logout(request)
    return redirect('home')

LouisdeBruijn

/* form errors and request messages and alerts */
.badge-light {
    margin-top: 2.5em;
}
.errorlist {
    list-style: none;
    padding-left: 0px;
    opacity: 0.8;
    color: #dc3545;

LouisdeBruijn

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',  # <--
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

LouisdeBruijn

s = "This string"
print(f"The length of |{s}| is {len(s)} characters and contains {len(s.split())} tokens.")
>>> "The length of |This string| is 11 characters and contains 2 tokens."

LouisdeBruijn

purpose = "string formatting"
percent_sign = "% operator"
dot_format_method = ".format() method"
string_literal = "f-string"
quantity, revenue = 100, 25
d = {"costs": 300}
list_operations = ['slicing and other things', 'indexing', 'key references']
limitations = ["be empty", "contain comments", "contain backslashes"]

print("Before w used the %s for %s." % (percent_sign, purpose))