reapy
is a nice pythonic wrapper around the quite unpythonic ReaScript Python API for REAPER.
This fork started as local copy for working on the repository as contributor. But since I've added a lot of functionality, that is still waits for approval (probably for an infinity), I made this fork to establish my own API.
So, I'll try to keep the fork as consistent as possible with the original repository, but while @RomeoDespres adds some own API which conflicts with API of the fork — they are going aside.
So, the baseline and base principle of the fork is to be «boosted»: review PRs as fast as possible, and, if they makes what they declare — just put them into the project. It may produce not very consistent codebase and not so clean architecture, but it will produce a stable API that can be used in the projects of contributors.
If you feel you need more explanation than the straightforward instructions below, head to the detailed installation guide.
reapy is available via pip
:
$ pip install reapy-boost
One additional step is required to let REAPER know reapy is available. First, open REAPER. Then in a terminal, run:
$ python -c "import reapy_boost; reapy.configure_reaper()"
Restart REAPER, and you're all set! You can now import reapy
from inside or outside REAPER as any standard Python module.
Instead of creating a new ReaScript containing:
from reaper_python import *
RPR_ShowConsoleMsg("Hello world!")
you can open your usual Python shell and type:
>>> import reapy_boost
>>> reapy.print("Hello world!")
All ReaScript API functions are available in reapy_boost
in the sub-module reapy_boost.reascript_api
. Note that in ReaScript Python API, all function names start with "RPR_"
. That unnecessary pseudo-namespace has been removed in reapy_boost
. Thus, you shall call reapy_boost.reascript_api.GetCursorPosition
in order to trigger reaper_python.RPR_GetCursorPosition
. See example below.
>>> from reapy_boost import reascript_api as RPR
>>> RPR.GetCursorPosition()
0.0
>>> RPR.SetEditCurPos(1, True, True)
>>> RPR.GetCursorPosition()
1.0
Note that if you have the SWS extension installed, the additional ReaScript functions it provides will be available in reapy_boost.reascript_api
and usable inside and outside REAPER as well.
The purpose of reapy_boost
is to provide a more pythonic API as a substitute for ReaScript API. Below is the reapy_boost
way of executing the example above.
>>> import reapy_boost
>>> project = reapy_boost.Project() # Current project
>>> project.cursor_position
0.0
>>> project.cursor_position = 1
>>> project.cursor_position
1.0
The translation table matches ReaScript functions with their reapy_boost
counterparts.
When used from inside REAPER, reapy_boost
has almost identical performance than native ReaScript API. Yet when it is used from the outside, the performance is quite worse. More precisely, since external API calls are processed in a defer
loop inside REAPER, there can only be around 30 to 60 of them per second. In a time-critical context, you should make use of the reapy_boost.inside_reaper
context manager.
>>> import reapy_boost
>>> project = reapy_boost.Project() # Current project
>>> # Unefficient (and useless) call
>>> bpms = [project.bpm for _ in range(1000)] # Takes at least 30 seconds...
>>> # Efficient call
>>> with reapy_boost.inside_reaper():
... bpms = [project.bpm for _ in range(1000)]
...
>>> # Takes only 0.1 second!
While reapy_boost.inside_reaper
saves time on defered calls, performance outside REAPER can be increased within method map
which exsists on every notable reapy_boost
object. Within object.map("method_name", iterables={"arg_name":[<list of values>]}, defaults{"def_arg_name":value})
performance can be insreased with saving on socket connections between outside and inside scripts.
import reapy_boost
take = reapy_boost.Project().selected_items[0].active_take
@reapy_boost.inside_reaper()
def test():
for i in [6.0] * 1000000:
take.time_to_ppq(6.0)
def test_map():
take.map('time_to_ppq', iterables={'time': [6.0] * 1000000})
test() # runs 140s
test_map() # runs 12s as from outside as from inside
Check the documentation and especially the API guide and Translation Table for more information.
For now, about a half of ReaScript API has a reapy
counterpart, the docs are far from great, and many bugs are waiting to be found. Feel free to improve the project by checking the contribution guide!
This project is licensed under the MIT License - see the LICENSE.txt file for details.