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piker/piker/clearing
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Gud Boi e1f3d7c3f8 Handle `tractor.TransportClosed` as "stream-closed" 
In both the ems and sampler since on new `tractor` this is the
"wrapping" exception raised when the transport layer terminates early
but in a psuedo-"graceful" way, expected when a peer actors disconnect.
Previously we were crashing in this case since old `tractor` just raised
the underlying `trio`-source-exceptions verbatim.

Also,
- use `Aid.reprol()` in log msgs vs old `.chan.uid` refs

(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
 		2026-02-22 20:08:20 -05:00
..
README.rst Further root readme bump, factor `.clearing` content 2025-02-12 15:01:51 -05:00
__init__.py Bleh, move `.data.types` back up to top level pkg 2023-08-05 15:57:10 -04:00
_client.py Adjust to `trio`'s strict eg nurseries throughout! 2026-01-06 22:27:58 -05:00
_ems.py Handle `tractor.TransportClosed` as "stream-closed" 2026-02-22 20:08:20 -05:00
_messages.py Add an option `BrokerdPosition.bs_mktid` field 2026-01-07 13:41:06 -05:00
_paper_engine.py Cast to `float` as needed from order-mode and ems 2026-01-06 21:43:59 -05:00
_util.py Various `.clearing` todos/notes on potential issues with loglevel settings.. 2025-02-21 16:25:22 -05:00

README.rst

piker.clearing

trade execution-n-control subsys for both live and paper trading as well as algo-trading manual override/interaction across any backend broker and data provider.

avail UIs

order ctl

the piker.clearing subsys is exposed mainly though the piker chart GUI as a "chart trader" style UX and is automatically enabled whenever a chart is opened.

the "manual" order control features are exposed via the piker.ui.order_mode API and can pretty much always be used (at least) in simulated-trading mode, aka "paper"-mode, and the micro-manual is as follows:

order_mode (

edge triggered activation by any of the following keys, mouse-click on y-level to submit at that price ):

  • f/ ctl-f to stage buy
  • d/ ctl-d to stage sell
  • a to stage alert
search_mode (

ctl-l or ctl-space to open, ctl-c or ctl-space to close ) :

  • begin typing to have symbol search automatically lookup symbols from all loaded backend (broker) providers
  • arrow keys and mouse click to navigate selection
  • vi-like ctl-[hjkl] for navigation

position (pp) mgmt

you can also configure your position allocation limits from the sidepane.