Files
simplex-chat/packages/simplex-chat-python
Evgeny @ SimpleX ChatandEvgeny Poberezkin 7810fc4752 core, ui: terminal chat layout for LLM and service bot chats (#7811)
* plan: UI improvements to improve LLM usage via SimpleX

* core, ui: types for chat layout

* core, ui: settings for alternative terminal-like chat layout for managing LLMs or other service bots

* plan: message priority

* fixes

* query plan

* update plans

* remove silent messages plan

* rename migrations

* implement layout

* amend

* fix

* fix

* fix

* improve

* time on the right, sender name in blue

* no avatar in direct chats

* better previews

* update, fixes

* update

* time gap

* changes

* ui: terminal layout line heights, gaps and time placement

* ui: simplify terminal meta layout, correct its docs and tests

* ui: right-to-left emoji edge in terminal rows, time placement tests

* android, desktop: raise Kotlin compiler memory to 4 GB

* ui: terminal captions as follow-up text, classic event separators

* ui: terminal media edge and overlay time, plan decisions

* ui: simplify terminal row separation, correct doc line references

* ui: keep the media time inside terminal rows, restore caption conditions

* ui: terminal heading capitals at large font scales, idle live message time

* ui: rename the classic voice-with-text flag, correct the meta copy docs

* ui: smaller terminal layout diff, sender gap and meta names

* ui: terminal row as tall as the media time

* docs: remove the chat layout section from the bots readme

* docs: shorten the terminal layout section of the chat view

* core: address settings API as on master, /auto_accept reads the stored layout

* ui: smaller terminal headings

* ui: classic sender rows and avatar rule as on master

* ui: classic reply quote text colour as on master

* ios: keep the chat layout setting with other UI settings

* ui: go-to button at the end of terminal rows, no gutter in direct chats

* ui: forwarded arrow on the header line of terminal rows, above the time

* ui: forwarded arrow centred above the time line of terminal rows

---------

Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>
2026-10-25 18:03:11 +00:00
..

SimpleX Chat Python library

Python 3.11+ client for SimpleX Chat bots. Equivalent to the Node.js library.

Install

pip install simplex-chat

The native libsimplex is downloaded lazily on first use. To pre-fetch:

python -m simplex_chat install                     # sqlite (default)
python -m simplex_chat install --backend postgres  # linux-x86_64 only

Quick start

import re
from simplex_chat import Bot, BotProfile, Message, SqliteDb, TextMessage

bot = Bot(
    profile=BotProfile(display_name="Squaring bot"),
    db=SqliteDb(file_prefix="./squaring_bot"),
    welcome="Send me a number, I'll square it.",
)

@bot.on_message(content_type="text", text=re.compile(r"^-?\d+(\.\d+)?$"))
async def square(msg: TextMessage) -> None:
    n = float(msg.text or "0")
    await msg.reply(f"{n} * {n} = {n * n}")

@bot.on_message(content_type="text")
async def fallback(msg: Message) -> None:
    await msg.reply("Send me a number, like 7 or 3.14.")

if __name__ == "__main__":
    bot.run()

bot.run() blocks. The connection address is logged on startup — paste it into a SimpleX client to talk to the bot. Ctrl+C to stop.

Three decorators: @bot.on_message(...), @bot.on_command(name), @bot.on_event(tag). Message handlers are first-match-wins in registration order, so register specific filters first and catch-alls last.

See examples/squaring_bot.py for the full example.

Development

uv venv && source .venv/bin/activate
uv pip install -e '.[dev]'
ruff check && pyright && pytest tests/

Wire types under src/simplex_chat/types/_*.py are generated. Regenerate with cabal test simplex-chat-test --test-options='--match Python'.

License

AGPL-3.0