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Issue with slycot/_wrapper.so

See original GitHub issue

I have some cryptic issue with slycot:

Using the lqr in Control gives:

Traceback (most recent call last):
  File "inverted_pendulum.py", line 49, in <module>
    (K, X, E) = lqr(A, B, Q, R);
  File "/Users/tobiasleedahle-morville/anaconda/lib/python3.4/site-packages/control/statefbk.py", line 191, in lqr
    raise ControlSlycot("can't find slycot module 'sb02md' or 'sb02nt'")
control.exception.ControlSlycot: can't find slycot module 'sb02md' or 'sb02nt'

And just using doing import slycot in python rises:

ImportError: dlopen(/Users/username/anaconda/lib/python3.4/site-packages/slycot/_wrapper.so, 2): 
Symbol not found: _dgesv_

Referenced from: /Users/username/anaconda/lib/python3.4/site-packages/slycot/_wrapper.so

Expected in: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib

Issue Analytics

State:
Created 7 years ago
Comments:14 (9 by maintainers)

Top GitHub Comments

1reaction

slivingstoncommented, Sep 15, 2017

thanks @herovit note that the link in your comment has empty target, so directs back to this issue (rather #115).

0reactions

murrayrmcommented, Dec 30, 2017

I think this issue is “resolved” from the point of view of python-control, in the sense that it relates to getting a working version of slycot up and running. As @repagh noted above, the issue with lapack as been resolved in Slycot PR #13.