Feature/python3

.travis.yml

@@ -0,0 +1,36 @@
+language: python
+sudo: required
+dist: trusty
+python:
+  - "2.7"
+  - "3.3"
+  - "3.4"
+  - "3.5"
+before_install:
+  # get a working ffmpeg
+  - sudo add-apt-repository --yes ppa:mc3man/trusty-media
+  - sudo apt-get update -qq
+  - sudo apt-get install -qq ffmpeg
+  # install numpy etc. via miniconda
+  - if [[ "$TRAVIS_PYTHON_VERSION" == "2.7" ]]; then
+        wget http://repo.continuum.io/miniconda/Miniconda-3.8.3-Linux-x86_64.sh -O miniconda.sh;
+    else
+        wget http://repo.continuum.io/miniconda/Miniconda3-3.8.3-Linux-x86_64.sh -O miniconda.sh;
+    fi
+  - bash miniconda.sh -b -p $HOME/miniconda
+  - export PATH="$HOME/miniconda/bin:$PATH"
+  - hash -r
+  - conda config --set always_yes yes --set changeps1 no
+  - conda update -q conda
+  - conda config --add channels pypi
+  - conda info -a
+  - deps='pip cython numpy scipy nose pep8'
+  - conda create -q -n test-environment "python=$TRAVIS_PYTHON_VERSION" $deps
+  - source activate test-environment
+install:
+  - pip install -e .
+before_script:
+  - pep8 --ignore=E402 madmom tests bin
+script:
+  - nosetests
+  # TODO: add executable programs

README.rst

@@ -45,16 +45,17 @@ Installation
 Prerequisites
 -------------
 
-To install the ``madmom`` package, you must have Python version 2.7 and the
-following packages installed:
+To install the ``madmom`` package, you must have either Python 2.7 or Python
+3.3 or newer and the following packages installed:
 
 - `numpy <http://www.numpy.org>`_
 - `scipy <http://www.scipy.org>`_
 - `cython <http://www.cython.org>`_
 - `nose <https://github.com/nose-devs/nose>`_ (to run the tests)
 
 If you need support for audio files other than ``.wav`` with a sample rate of
-44.1kHz and 16 bit depth, you need ``ffmpeg`` (or ``avconv`` on Ubuntu Linux).
+44.1kHz and 16 bit depth, you need ``ffmpeg`` (``avconv`` on Ubuntu Linux has
+some decoding bugs, so we advise not to use it!).
 
 Please refer to the `requirements.txt <requirements.txt>`_ file for the minimum
 required versions and make sure that these modules are up to date, otherwise it

bin/BeatDetector

@@ -5,6 +5,8 @@ BeatDetector beat tracking algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -94,7 +96,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/BeatTracker

@@ -5,6 +5,8 @@ BeatTracker beat tracking algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -92,7 +94,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/CRFBeatDetector

@@ -5,6 +5,8 @@ CRFBeatDetector beat tracking algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -95,7 +97,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/ComplexFlux

@@ -5,6 +5,8 @@ ComplexFlux onset detection algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import argparse
 
 from madmom.processors import IOProcessor, io_arguments
@@ -72,7 +74,7 @@ def main():
         args.online = False
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/DBNBeatTracker

@@ -5,6 +5,8 @@ DBNBeatTracker beat tracking algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -96,7 +98,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/DownBeatTracker

@@ -5,6 +5,8 @@ DownBeatTracker (down-)beat tracking algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -92,7 +94,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/LogFiltSpecFlux

@@ -5,6 +5,8 @@ LogFiltSpecFlux onset detection algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import argparse
 
 from madmom.processors import IOProcessor, io_arguments
@@ -71,7 +73,7 @@ def main():
         args.online = False
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/MMBeatTracker

@@ -5,6 +5,8 @@ MMBeatTracker multi model beat tracking algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -104,7 +106,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/OnsetDetector

@@ -5,6 +5,8 @@ OnsetDetector onset detection algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -88,7 +90,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/OnsetDetectorLL

@@ -5,6 +5,8 @@ OnsetDetectorLL online onset detection algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -100,7 +102,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/PianoTranscriptor

@@ -5,6 +5,8 @@ PianoTranscriptor (piano) note transcription algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -17,7 +19,7 @@ from madmom.audio.spectrogram import (LogarithmicFilteredSpectrogramProcessor,
 from madmom.ml.rnn import RNNProcessor, average_predictions
 from madmom.features import ActivationsProcessor
 from madmom.features.onsets import PeakPickingProcessor
-from madmom.features.notes import (write_midi, write_notes, write_frequencies,
+from madmom.features.notes import (write_midi, write_notes, write_mirex_format,
                                    note_reshaper)
 
 
@@ -102,7 +104,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:
@@ -136,7 +138,7 @@ def main():
         elif args.output_format == 'midi':
             output = write_midi
         elif args.output_format == 'mirex':
-            output = write_frequencies
+            output = write_mirex_format
         else:
             raise ValueError('unknown output format: %s' % args.output_format)
         out_processor = [peak_picking, output]

bin/PickleProcessor

@@ -5,7 +5,9 @@ PickleProcessor.
 
 """
 
-import cPickle
+from __future__ import absolute_import, division, print_function
+
+import pickle
 import argparse
 
 from madmom.processors import io_arguments
@@ -28,14 +30,14 @@ def main():
                         help='pickled processor')
     parser.add_argument('--version', action='version',
                         version='PickleProcessor v0.1')
-    sp = io_arguments(parser, output_suffix='.txt', pickle=False)
+    io_arguments(parser, output_suffix='.txt', pickle=False)
 
     # parse arguments
     args = parser.parse_args()
     kwargs = vars(args)
 
     # create a processor
-    processor = cPickle.load(kwargs.pop('processor'))
+    processor = pickle.load(kwargs.pop('processor'))
     # and call the processing function
     args.func(processor, **kwargs)
 

bin/SpectralOnsetDetection

@@ -5,6 +5,8 @@ Spectral onset detection script.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import argparse
 
 from madmom.processors import IOProcessor, io_arguments
@@ -84,7 +86,7 @@ def main():
                          '%s.' % args.onset_method)
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/SuperFlux

@@ -5,6 +5,8 @@ SuperFlux onset detection algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import argparse
 
 from madmom.processors import IOProcessor, io_arguments
@@ -71,7 +73,7 @@ def main():
         args.online = False
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/SuperFluxNN

@@ -5,6 +5,8 @@ SuperFlux with neural network based peak picking onset detection algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -85,7 +87,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:

bin/TempoDetector

@@ -5,6 +5,8 @@ TempoDetector tempo estimation algorithm.
 
 """
 
+from __future__ import absolute_import, division, print_function
+
 import glob
 import argparse
 
@@ -91,7 +93,7 @@ def main():
 
     # print arguments
     if args.verbose:
-        print args
+        print(args)
 
     # input processor
     if args.load:
@@ -124,8 +126,8 @@ def main():
             from functools import partial
             writer = partial(write_tempo, mirex=True)
         elif args.tempo_format in ('raw', 'all'):
-            # borrow the note writer for outputting multiple values
-            from madmom.features.notes import write_notes as writer
+            # borrow the event writer for outputting multiple values
+            from madmom.utils import write_events as writer
         else:
             # normal output
             writer = write_tempo