A debugging and testing cog for discord.py rewrite
Project description
jishaku is a debugging and experimenting cog for Discord bots using discord.py@rewrite.
It is locked to Python 3.6 and requirements will shift as new discord.py and Python versions release. This repo primarily exists for the purpose of example and usage in other bot projects.
Installing
This cog does not work without discord.py@rewrite Not having it installed properly will make the cog fail to install Use the following to install discord.py@rewrite on the latest version:
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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+https://github.com/Gorialis/jishaku@master#egg=jishaku
It can be used in bots directly using
bot.load_extension("jishaku")
Functionality
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.one cogs.two cogs.three.
Jishaku can reload itself using [jishaku|jsk] selfreload.
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 _ctx.author.name 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 _ctx.channel
_author: Shorthand for _ctx.message.author
_bot is globally available, but all other REPL variables are local (that is, editing or overwriting them won’t affect other current repl sessions)
Yielding inside of an eval codeblock allows you to return intermediate data as your code runs. Any objects yielded will be treated as if they were returned, without terminating execution.
(Note that as yielding creates an asynchronous generator, you can no longer return and must yield for all results you feed back.)
An alternate command is available, [jishaku|jsk] [python_what|pyw] <codeline|codeblock>.
This command performs identically as the standard eval, but inspects yielded results instead of just formatting them.
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
For bots maintained using the git version control system, a shortcut command [jishaku|jsk] git <codeline> is available.
This simply invokes the sh command, but prefixes with git to make running git commands easier, such as jsk git pull.
Project details
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