导入错误：无法导入名称“distribute_covar_matrix_to_match_covariance_type”

Question

I'm trying to run the code in the hmmlearn tutorial but I get an import error from the removed method 'distribute_covar_matrix_to_match_covariance_type'. I don't know how to install a version of hmmlearn in Anaconda that does not cause this problem.

I'm running this on Windows 10 with:

• (Name, Version, Build, Channel)
• hmmlearn, 0.3.0b, np112py36_0, omnia
• scikit-learn, 0.20.1, py36hb854c30_0
• python, 3.6.8, h9f7ef89_7

I have installed hmmlearn and scikit-learn though Anaconda with this command: conda install -c omnia hmmlearn .

It seems to me as tho the hmmlearn that is installed via Anaconda is not the latest version of hmmlearn because in the file hmm.py this line exist from sklearn.mixture import ( distribute_covar_matrix_to_match_covariance_type, _validate_covars ) . Compared the the latest version of hmmlearn

In the bundeled scikit-learn that is installed with hmmlearn in Anaconda the distribute_covar_matrix_to_match_covariance_type method is removed, as it should be in scikit-learn 0.20.1. ( It was removed in 0.20 )

from hmmlearn import hmm

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-19-16c29f744bfe> in <module>
----> 1 from hmmlearn import hmm

~\Documents\Anaconda\lib\site-packages\hmmlearn\hmm.py in <module>
     14 from scipy.misc import logsumexp
     15 from sklearn import cluster
---> 16 from sklearn.mixture import (
     17     distribute_covar_matrix_to_match_covariance_type, _validate_covars
     18 )

ImportError: cannot import name 'distribute_covar_matrix_to_match_covariance_type'

The problem seems to be that Anaconda is installing incompatible versions of hmmlearn and scikit-learn. Any suggestions on how I can install compatible versions of these packages?

Answer 1

From @Vivek Kumar run conda install -c conda-forge hmmlearn

If that doesn't work remove hmmlearn with

conda remove hmmlearn

then reinstall with pip

pip install --upgrade --user hmmlearn