Python3 (#3)

* Python3 port by Marius Gedminas

See:
- https://github.com/mgedmin/python-midi
- vishnubob#130

* Re-applied adaptations for samplerbox

* Add buffered writing of 1-track midi files (#2)

Author: hansehv

examples/example_1.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import midi
 # Instantiate a MIDI Pattern (contains a list of tracks)
 pattern = midi.Pattern()
@@ -15,6 +16,6 @@
 eot = midi.EndOfTrackEvent(tick=1)
 track.append(eot)
 # Print out the pattern
-print pattern
+print(pattern)
 # Save the pattern to disk
 midi.write_midifile("example.mid", pattern)

examples/example_2.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import midi
 pattern = midi.read_midifile("example.mid")
-print pattern
+print(pattern)

scripts/mididump.py

@@ -1,14 +1,16 @@
 #!/usr/bin/env python
+from __future__ import print_function
+
 """
 Print a description of a MIDI file.
 """
 import midi
 import sys
 
 if len(sys.argv) != 2:
-    print "Usage: {0} <midifile>".format(sys.argv[0])
+    print("Usage: {0} <midifile>".format(sys.argv[0]))
     sys.exit(2)
 
 midifile = sys.argv[1]
 pattern = midi.read_midifile(midifile)
-print repr(pattern)
+print(repr(pattern))

scripts/mididumphw.py

@@ -2,8 +2,9 @@
 """
 Print a description of the available devices.
 """
+from __future__ import print_function
 import midi.sequencer as sequencer
 
 s = sequencer.SequencerHardware()
 
-print s
+print(s)

scripts/midilisten.py

@@ -2,13 +2,15 @@
 """
 Attach to a MIDI device and print events to standard output.
 """
+from __future__ import print_function
+
 import sys
 import time
 import midi
 import midi.sequencer as sequencer
 
 if len(sys.argv) != 3:
-    print "Usage: {0} <client> <port>".format(sys.argv[0])
+    print("Usage: {0} <client> <port>".format(sys.argv[0]))
     exit(2)
 
 client = sys.argv[1]
@@ -21,4 +23,4 @@
 while True:
   event = seq.event_read()
   if event is not None:
-      print event
+      print(event)

scripts/midiplay.py

@@ -3,13 +3,15 @@
 Attach to a MIDI device and send the contents of a MIDI file to it.
 2019 - HansEhv: adapted to work with modified sequencer.py
 """
+from __future__ import print_function
+
 import sys
 import time
 import midi
 import midi.sequencer as sequencer
 
 if len(sys.argv) != 4:
-    print "Usage: {0} <client> <port> <file>".format(sys.argv[0])
+    print("Usage: {0} <client> <port> <file>".format(sys.argv[0]))
     exit(2)
 
 client   = sys.argv[1]
@@ -47,4 +49,4 @@
     seq.drain()
     time.sleep(.5)
 
-print 'The end?'
+print('The end?')

setup.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+from __future__ import print_function
 import os
 from setuptools import setup, Extension
 import setuptools.command.install
@@ -62,7 +63,7 @@ def configure_platform():
         setup_alsa(ns)
         pass
     else:
-        print "No sequencer available for '%s' platform." % platform
+        print("No sequencer available for '%s' platform." % platform)
     return ns
 
 if __name__ == "__main__":

src/__init__.py

@@ -1,5 +1,6 @@
-from containers import *
-from events import *
 from struct import unpack, pack
-from util import *
-from fileio import *
+
+from .containers import *
+from .events import *
+from .util import *
+from .fileio import *

src/constants.py

@@ -3,13 +3,13 @@
 ##
 
 OCTAVE_MAX_VALUE = 12
-OCTAVE_VALUES = range( OCTAVE_MAX_VALUE )
+OCTAVE_VALUES = list(range( OCTAVE_MAX_VALUE))
 
-NOTE_NAMES = ['C','Cs','D','Ds','E','F','Fs','G','Gs','A','As','B']
+NOTE_NAMES = ['C', 'Cs', 'D', 'Ds', 'E', 'F', 'Fs', 'G', 'Gs', 'A', 'As', 'B']
 WHITE_KEYS = [0, 2, 4, 5, 7, 9, 11]
 BLACK_KEYS = [1, 3, 6, 8, 10]
 NOTE_PER_OCTAVE = len( NOTE_NAMES )
-NOTE_VALUES = range( OCTAVE_MAX_VALUE * NOTE_PER_OCTAVE )
+NOTE_VALUES = list(range( OCTAVE_MAX_VALUE * NOTE_PER_OCTAVE))
 NOTE_NAME_MAP_FLAT = {}
 NOTE_VALUE_MAP_FLAT = []
 NOTE_NAME_MAP_SHARP = {}

src/containers.py

@@ -25,7 +25,7 @@ def __getitem__(self, item):
         if isinstance(item, slice):
             indices = item.indices(len(self))
             return Pattern(resolution=self.resolution, format=self.format,
-                            tracks=(super(Pattern, self).__getitem__(i) for i in xrange(*indices)))
+                            tracks=(super(Pattern, self).__getitem__(i) for i in range(*indices)))
         else:
             return super(Pattern, self).__getitem__(item)
 
@@ -58,7 +58,7 @@ def make_ticks_rel(self):
     def __getitem__(self, item):
         if isinstance(item, slice):
             indices = item.indices(len(self))
-            return Track((super(Track, self).__getitem__(i) for i in xrange(*indices)))
+            return Track((super(Track, self).__getitem__(i) for i in range(*indices)))
         else:
             return super(Track, self).__getitem__(item)