PyQGIS script to save/load/wipe XYZ sources in Browser Panel in QGIS3

load_xyz_sources.py

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

"""
/***************************************************************************
Name                 : XYZ manager
Description          : Script to save/load/wipe WYZ sources in QGIS 3.0
Date                 : February 27, 2017
copyright            : (C) 2017 by Thomas Gratier
email                : thomas.gratier@webgeodatavore.com

 ***************************************************************************/
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
"""

import csv
from PyQt5.QtCore import QSettings

s = QSettings()

xyz = 'qgis/connections-xyz'
keys = ["url", "zmin", "zmax", "authcfg", "username", "password", "referer"]


def getGroupXYZ():
    s.beginGroup(xyz)
    groupsXYZ = s.childGroups()
    s.endGroup()
    return groupsXYZ


def connexionsXYZSettings(groups):
    connections_xyz = []
    for group in groups:
        s.beginGroup(xyz + "/" + group)
        conn = {}
        conn["name"] = group
        for key in keys:
            if s.value(key):
                conn[key] = s.value(key)
            else:
                conn[key] = ''
        s.endGroup()
        connections_xyz.append(conn)
    return connections_xyz


def writeConnexionsXYZToCSV(dictionnary, filepath):
    with open(filepath, 'w', encoding='utf-8') as f:  # save to csv
        output = csv.writer(f)  # create a csv.write
        header = dictionnary[0].keys()
        output.writerow(header)  # header row
        for row in dictionnary:
            output.writerow(row.values())  # values row


def readConnexionsXYZFromCSV(filepath):
    data = []
    with open(filepath, encoding='utf-8') as f:  # load csv file
        for row in csv.DictReader(f):
            data.append(row)
    return data


def setConnexionXYZ(filepath='/tmp/xyzsources.csv'):
    for record in readConnexionsXYZFromCSV(filepath):
        s.beginGroup(xyz)
        group = record["name"]
        for key in keys:
            if record[key]:
                s.setValue(group + "/" + key, record[key])
        s.endGroup()


def removeAllConnexionsXYZ():
    for group in getGroupXYZ():
        s.beginGroup(xyz)
        s.remove("")
        s.endGroup()

# If you want to save your current configuration, uncomment and change path
# writeConnexionsXYZToCSV(connexionsXYZSettings(getGroupXYZ()), '/tmp/xyzsources.csv')

# If you want to wipe XYZ configuration, uncomment
# removeAllConnexionsXYZ()

# Adapt path from where your csv is located
# We provide a file to load Mapbox datasources (just replace 'your key' with your own Mapbox account key)
setConnexionXYZ('/tmp/xyzsources.csv')

# You must reload the connection to update Browser Panel content
# otherwise you will not see changes
iface.reloadConnections()

xyzsources.csv

xyzsources_mapbox.csv