To send and read messages in Discord using Python, you will need to use the Discord API and the python `discord` library.

Here is an example of how you can send a message to a Discord channel using the `discord` library:

import discord

client = discord.Client()

@client.event
async def on_ready():
    # Find the channel by its name
    channel = discord.utils.get(client.get_all_channels(), name='my-channel')

    # Send the message
    await channel.send('Hello, world!')

client.run('TOKEN')

To read messages from a Discord channel, you can use the `on_message` event of the `Client` object. This event is triggered every time a message is received in any channel that the bot has access to.

Here is an example of how you can use the `on_message` event to read and process messages in Discord:

import discord

client = discord.Client()

@client.event
async def on_message(message):
if message.author == client.user:
    return

if message.content == '!hello':
    await message.channel.send('Hello, human!')

client.run('TOKEN')

This will send a message saying “Hello, human!” in the same channel as the original message whenever the bot receives a message that says “!hello”.

You will need to replace `TOKEN` with your Discord bot‘s token in order to authenticate the bot and allow it to access your Discord server.

I hope this helps! Let me know if you have any questions.