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A debugging and testing cog for rewrite

Project description

jishaku is a debugging and experimenting cog for Discord bots using

It is locked to Python 3.6 and requirements will shift as new and Python versions release. This repo primarily exists for the purpose of example and usage in other bot projects.


This cog does not work without

Not having it installed properly will make the cog fail to install

Use the following to install on the latest version:

python3 -m pip install -U git+[voice]

This cog can be installed through the following command:

python3 -m pip install -U jishaku

Or the development version:

python3 -m pip install -U git+

It can be used in bots directly using



Extension loading/unloading

Jishaku contains 3 commands for loading and unloading extensions:

  • [jishaku|jsk] load [exts...]
  • [jishaku|jsk] unload [exts...]
  • [jishaku|jsk] reload [exts...]

These commands do as described, with reload unloading and loading cogs again for quick reloads. [exts...] are a set of extension names separated by spaces, such as cogs.two cogs.three.

Python REPL

Jishaku can evaluate Python code with [jishaku|jsk] [python|py] <codeline|codeblock>.

By default eval-mode is used, allowing you to type statements like 3+4 or to return their result. Eval-mode supports async syntax, so you can do evaluations like await coro() or [m async for m in _ctx.history()].

Exec-mode will be used whenever eval-mode fails. In this mode, you can use control flow and return manually.

Variables available in both eval and exec modes are:

  • _bot: Represents the current commands.Bot instance.
  • _ctx: Represents the current commands.Context.
  • _message: Shorthand for _ctx.message
  • _msg: Shorthand for _ctx.message
  • _guild: Shorthand for _ctx.guild
  • _channel: Shorthand for
  • _author: Shorthand for

_bot is globally available, but all other REPL variables are local (that is, editing or overwriting them won’t affect other current repl sessions)

Shell Interaction

Jishaku can interact with CLI programs with [jishaku|jsk] sh <codeline|codeblock>.

This opens a bash subprocess, meaning you can run standard shell commands or bash syntax.

Usually most distributions have bash installed in some capacity, but inside bot containers running minimalist distros such as Alpine, it may not be available. In this case you will need to install bash in order to use the sh command:

apk add --no-cache bash

Project details

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