Librosa: joblib 0.12 causes TypeError at import

[mvollrath]

Description

librosa fails to import with joblib 0.12 installed. Works with joblib 0.11.

Steps/Code to Reproduce

import librosa

Expected Results

No TypeError

Actual Results

  File "...", line 19, in <module>
    import librosa
  File "/usr/local/lib/python2.7/dist-packages/librosa/__init__.py", line 12, in <module>
    from . import core
  File "/usr/local/lib/python2.7/dist-packages/librosa/core/__init__.py", line 104, in <module>
    from .time_frequency import *  # pylint: disable=wildcard-import
  File "/usr/local/lib/python2.7/dist-packages/librosa/core/time_frequency.py", line 10, in <module>
    from ..util.exceptions import ParameterError
  File "/usr/local/lib/python2.7/dist-packages/librosa/util/__init__.py", line 67, in <module>
    from .utils import *  # pylint: disable=wildcard-import
  File "/usr/local/lib/python2.7/dist-packages/librosa/util/utils.py", line 111, in <module>
    def valid_audio(y, mono=True):
  File "/usr/local/lib/python2.7/dist-packages/librosa/cache.py", line 49, in wrapper
    if self.cachedir is not None and self.level >= level:
  File "/usr/local/lib/python2.7/dist-packages/joblib/memory.py", line 847, in cachedir
    DeprecationWarning, stacklevel=2)
TypeError: expected string or buffer

Versions

Linux-4.4.0-119-generic-x86_64-with-Ubuntu-16.04-xenial
('Python', '2.7.12 (default, Dec  4 2017, 14:50:18) \n[GCC 5.4.0 20160609]')
('NumPy', '1.14.3')
('SciPy', '1.1.0')
('librosa', '0.5.1')

[mvollrath]

Looks like joblib's deprecation warning is raising a TypeError, not as gentle as they intended..

[bmcfee]

Yikes, thanks for catching this! It looks like the changelog for joblib isn't even up to date with 0.12. Any idea what the change was?

[bmcfee]

Ah, I see in the source. They renamed a parameter from cachedir to location. This is a relatively easy fix if we bump up the minimum version requirement. I can try to do this over the weekend and push out a quick point release.

Long term, we might want to rethink how the whole caching system works, or try to push the caching level functionality upstream to joblib.

[victor9000]

I was able to work around this issue by removing joblib 0.12.0 and installing 0.11.0