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Is it possible to use Perlence to create a RPP file from multiple MIDI files with those files showing up as items with vertical regions? I notice that RPP files store MIDI in ASCII format. The MIDI files I have are binary. I want to be able to program in Python:

insert_MIDI(file1.mid, time=00:00:00)
insert_MIDI(file2.mid, time=00:02:25)
insert_MIDI(file3.mid, time=00:04:50)
create_region(start=00:00:00, end=00:02:25, name="intro")
create_region(start=00:02:25, end=00:04:50, name="part 1")
create_region(start=00:04:50, end=00:06:00, name="chorus")

Please see the following code

import rpp

fx_chain = '''\
<FXCHAIN_REC
  BYPASS 0 0
  <JS sstillwell/3x3 ""
    0 0 0 0 0 0 240 2400 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  >
  WAK 0 0
  BYPASS 0 0
  <JS loser/5BandJoiner ""
    0 0 0 0 0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  >
  WAK 0 0
>'''

track = rpp.Element(tag='TRACK', attrib=[], children=fx_chain_formatted)
rpp_root = rpp.Element(tag='REAPER_PROJECT', attrib=['0.1', '6.09/x64', '1594105202'],
                    children=track)
final_result = rpp.dumps(rpp_root)

The logic of how the code works is simple, it starts with the fx_chain piece of data to create a project.
But the result of running the code is completely different from what I expect, only the outermost tag is kept in the final rpp.dumps operation, and all the tags in the inner level are ignored, and the result is as follows.

<REAPER_PROJECT 0.1 6.09/x64 1594105202
  BYPASS 0 0
  <JS sstillwell/3x3 ""
    0 0 0 0 0 0 240 2400 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  >
  WAK 0 0
  BYPASS 0 0
  <JS loser/5BandJoiner ""
    0 0 0 0 0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  >
  WAK 0 0
>

I wonder if there is something wrong with the recursive logic in your code? THX

I recently switched to Python 3.11 and found that rpp/rpp/encoder.py reports an error when executing from collections import Iterable.
After looking through the source code, I found that this fix has been fixed in commit 0ba3583, but it was not released to pypi.
Can you please release a new version, I guess it might be rpp 0.5? Thanks a lot :)