pip failed to build medleydb

[gszep]

When running pip install . inside the root medleydb directory I get this error

Installing collected packages: medleydb
  Running setup.py install for medleydb ... error
    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-req-build-3m5VSF/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-jCG1KO/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-2.7
    creating build/lib.linux-x86_64-2.7/medleydb
    copying medleydb/mix.py -> build/lib.linux-x86_64-2.7/medleydb
    copying medleydb/version.py -> build/lib.linux-x86_64-2.7/medleydb
    copying medleydb/multitrack.py -> build/lib.linux-x86_64-2.7/medleydb
    copying medleydb/__init__.py -> build/lib.linux-x86_64-2.7/medleydb
    copying medleydb/utils.py -> build/lib.linux-x86_64-2.7/medleydb
    copying medleydb/download.py -> build/lib.linux-x86_64-2.7/medleydb
    creating build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/tracklist_bach10.txt -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/taxonomy.yaml -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/instrument_f0_type.json -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/mixing_coefficients.yaml -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/mixing_coefficients_version2.yaml -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/tracklist_v1.txt -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/client_secrets.json -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/tracklist_extra.txt -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/artist_index.json -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/tracklist_v2.txt -> build/lib.linux-x86_64-2.7/medleydb/resources
    copying medleydb/resources/pyin.n3 -> build/lib.linux-x86_64-2.7/medleydb/resources
    creating build/lib.linux-x86_64-2.7/medleydb/data
    error: can't copy 'medleydb/data/Metadata': doesn't exist or not a regular file
    
    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-req-build-3m5VSF/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-jCG1KO/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-req-build-3m5VSF/

It feels like a similar error that is thrown when you attempt to cp a directory without specifying --recursive. I recommend a fix according to this Stackoverflow thread

--- Relevant Specifications ---
Ubuntu 16.04
Python 2.7.12
setuptools 20.7.0

[gszep]

the following changes on lines 5-9 in setup.py seems to successfully install the library

-package_data = ['resources/*']
+package_data = ['resources/*.*']
 os.chdir('medleydb')
-package_data.extend(['{0}/*'.format(root)
+package_data.extend(['{0}/*.*'.format(root)
                     for root, dirs, files in os.walk('data')])

Following installation I ran python tests/test_* from the medleydb source root directory
and no errors were returned, suggesting that everything was installed correctly? Anyway I have a branch ready to merge changes to master if you like