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Originally posted on June 04, Bots are a useful way to interact with chat services such as Slack. If you have never built a bot before, this post provides an easy starter tutorial for combining the Slack API with Python to create your first bot.
We will walk through setting up your development environment, obtaining a Slack API bot token and coding our simple bot in Python.
To run our Python code we need: All the code for this tutorial is available open source under the MIT license in the slack-starterbot public repository.
Go to the terminal or Command Prompt on Windows and change into the directory where you want to store this project. Within that directory, create a new virtualenv to isolate our application dependencies from other Python projects.
The official slackclient API helper library built by Slack can send and receive messages from a Slack channel.
Install the slackclient library with the pip command: Use "Starter Bot" as your App name. If you are signed into more than one workspace, pick a Development Workspace from the dropdown. After submitting the form, keep the app configuration page open. In a Slack App, this is called a bot userwhich we set up by choosing "Bot Users" under the "Features" section.
After clicking "Add a Bot User", you should choose a display name, choose a default username, and save your choices by clicking "Add Bot User".
Conveniently, the bot user we created earlier can be used to authenticate for both APIs. Click on the "Install App" under the "Settings" section. The button on this page will install the App into our Development Workspace. Once the App is installed, it displays a bot user oauth access token for authentication as the bot user.
A common practice for Python developers is to export secret tokens as environment variables. Create a new file named starterbot. A few constants are also declared, and each of them will be explained as they are used in the code that follows.
Exception traceback printed above. Each bot user has a user ID for each workspace the Slack App is installed within. Storing this user ID will help the program understand if someone has mentioned the bot in a message.
Next, add three new functions above the previous snippet to complete handling commands: If a bot command is found, this function returns a tuple of command and channel. If its not found, then this function returns None, None.
There are many event types that our bot will encounter, but to find commands we only want to consider message events. The function filters out uninteresting events by checking these properties. Now we know the event represents a message with some text, but we want to find out if Starter Bot is being mentioned in the text.
If they are the same, then we know this is a bot command, and return the command text with the channel ID. It returns the user ID and the remaining message and None, None if no mention was found. For now, it has just one example command: If the command starts with a known command, it will have an appropriate response.
If not, a default response is used. The response is sent back to Slack by calling the chat. In Slack, create a new channel and invite Starter Bot or invite it to an existing channel. Now start giving Starter Bot commands in your channel.How to Build Your First Slack Bot with Python.
Post updated by Matt Makai on December 13, Originally posted on June 04, Bots are a useful way to interact with chat services such as Slack. If you have never built a bot before, this post provides an easy starter tutorial for combining the Slack API with Python to create your first bot.
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Preparing the Bot. Before we get to start writing all the cool and fun things for our bot to do, first we have to prepare the bot itself. 10 responses to “Create an IRC Bot with Python 3” Sathya says: September 29, at am Hello and thank you for such an awesome tutorial on how to create an IRC bot in python 3!
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