Description

A deprecation warning is thrown when using sklearn. Recently cloudpickle was updated to do away with this warning, the sklearn version needs to be updated accordingly.

Steps/Code to Reproduce

I imagine this occurs anywhere cloudpickle is imported. I am getting it from:
from sklearn.ensemble import RandomForestRegressor
and using said Regressor

Expected Results

No deprecation warning should be thrown

Actual Results

/usr/local/lib/python3.6/dist-packages/sklearn/externals/joblib/externals/cloudpickle/cloudpickle.py:47: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
import imp

Versions

System

python: 3.6.6 (default, Sep 12 2018, 18:26:19)  [GCC 8.0.1 20180414 (experimental) [trunk revision 259383]]
executable: /usr/bin/python3.6
machine: Linux-4.15.0-36-generic-x86_64-with-Ubuntu-18.04-bionic

BLAS

macros: NO_ATLAS_INFO=1, HAVE_CBLAS=None
lib_dirs: /usr/lib/x86_64-linux-gnu
cblas_libs: cblas

Python deps

pip: 18.1
setuptools: 40.0.0
sklearn: 0.20.0
numpy: 1.15.3
scipy: 1.1.0
Cython: None
pandas: 0.23.4