CyClpSimplex import and addConstraints/addVariables segfault error

[edeakins]

Hi, after updating to v0.91.0, my import of CyClpSimplex no longer works it give me the error "AttributeError: type object 'cylp.cy.CyClpSimplex.CyClpSimplex' has no attribute 'reduce_cython' ". Also, before updating to v0.91.0, I was receiving segfault errors when trying to use CyClpSimplex().addVariables() and CyClpSimplex().addConstraints(). The same problem occurred when trying to use CyClpSimplex().CLP_addVariable() and CyClpSimplex().CLP_addConstraint().

[tkralphs]

I can't replicate this locally. With some quick Googling, it appears that this could be a version incompatibility with Cython. You could try upgrading Cython to the latest version. If that doesn't work, maybe post a bit more information (Cython version, how it was installed, etc.)

[edeakins]

Okay thank you!!

On Thu, Nov 19, 2020 at 12:38 PM Ted Ralphs ***@***.***> wrote: *[External Email]* I can't replicate this locally. With some quick Googling, it appears that this could be a version incompatibility with Cython. You could try upgrading Cython to the latest version. If that doesn't work, maybe post a bit more information (Cython version, how it was installed, etc.) — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#107 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AL3MSYCOLYB6KDBRG4GD72LSQVQY5ANCNFSM4T2CW6GA> .

-- Ethan Deakins Department of Industrial Engineering University of Tennessee, Knoxville [email protected]