A small script to parse messages from a specific time range from the better discord plugin MessgeLoggerv2's json file. Made specifically for WA dojo.

messageLoggerParse.py

#!/usr/bin/env python3

import json
import datetime

CHANNELS = {
    506442111084920845: 'about',
    733402345316286464: 'members',
    497469150881513472: 'news',
    497471609553158164: 'worms-faq',
    762071368568143892: 'server-feedback',
    416225356706480130: 'general',
    733402229851291669: 'bug-reports',
    691342271861358592: 'community-workshop',
    450730221209911302: 'post-your-shot',
    749923208211333230: 'roper-league',
    750371635843956767: 'worms-1st-gen',
    735205896346402888: 'worms-2',
    750371889792286751: 'worms-asia',
    508118991445688355: 'offtopic',
    450733740314984451: 'memes',
    769624251341733921: 'politics-and-debate',
    541315292115107852: 'music-listening⚡'
}

CHANNEL_ID = 'offtopic'
CHANNEL_ID = [str(key) for key, value in CHANNELS.items() if value == CHANNEL_ID][0]
#BEFORE = datetime.datetime.fromisoformat('2020-10-03 21:53:49.269000+00:00')
#AFTER = datetime.datetime.fromisoformat('2020-10-03T21:07:10.844000+00:00')
AFTER  = datetime.datetime.fromisoformat('2020-11-01T20:49:18.027000+00:00')
BEFORE = datetime.datetime.fromisoformat('2020-11-01T23:29:48.640000+00:00')

# Box drawing characters from https://www.compart.com/en/unicode/block/U+2500
MSG_SEP = '━' * 40

# /home/cgar/.config/BetterDiscord/plugins/MessageLoggerV2Data.config.json
with open('2020-11-02_MessageLoggerV2Data.config.json', 'rt') as f:
    data = json.load(f)

formatted_messages = []
for deleted_msg_id in data['data']['deletedMessageRecord'][CHANNEL_ID]:
    message = data['data']['messageRecord'][deleted_msg_id]

    timestamp = message['message']['timestamp']
    if timestamp.lower().endswith('z'):
        timestamp = timestamp[:-1] + '+00:00'
    timestamp = datetime.datetime.fromisoformat(timestamp)

    if not BEFORE >= timestamp >= AFTER:
        continue
    username = message['message']['author']['username']
    content = message['message']['content']

    for mention in message['message']['mentions']:
        content = content.replace(f'<@!{mention["id"]}>', f'<@{mention["username"]}>')
    for attachment in message['message']['attachments']:
        content += f'\n<ATTACHMENT:{attachment["url"]}>'
    if '<#' in content:
        for key, value in CHANNELS.items():
            content = content.replace(f'<#{key}>', f'<#{value}>')

    formatted_messages.append({'timestamp': timestamp, 'username': username, 'content': content})

formatted_messages.sort(key=lambda t: t['timestamp'])

for idx, msg in enumerate(formatted_messages, start=1):
    print('[{t}] [{u}]:\n{c}'.format(
        t = msg['timestamp'],
        u = msg['username'],
        c = msg['content']
    ))
    if idx != len(formatted_messages):
        print('\n', MSG_SEP, '\n', sep='')