cannot import name 'pywrapcp' from 'ortools'

[victor510295]

I've already download the package "ortools" from ortools import pywrapcp and trying to use "pywrapcp" this function.

manager = pywrapcp.RoutingIndexManager(len(data['distance_matrix']),
                                       data['num_vehicles'], data['depot'])

But it shows error: ImportError: cannot import name 'pywrapcp' from 'ortools'

How can I solve it?

[lperron]

which platform? Laurent Perron | Operations Research | lperron@google.com | (33) 1 42 68 53 00

Le ven. 27 mars 2020 à 11:15, victor510295 notifications@github.com a écrit :

I've already download the package "ortools" from ortools import pywrapcp and trying to use "pywrapcp" this function.

manager = pywrapcp.RoutingIndexManager(len(data['distance_matrix']), data['num_vehicles'], data['depot'])

But it shows error: ImportError: cannot import name 'pywrapcp' from 'ortools'

How can I solve it?

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/google/or-tools/issues/1939, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACUPL3OTU53LNBHX46LJFBDRJR4EHANCNFSM4LU4QUYA .

[pointer]

windows 10, nodejs

[lperron]

Make sure you have visual studio 2019 redistributables installed

Le lun. 1 juin 2020 à 13:49, Kateb Ghemari notifications@github.com a écrit :

windows 10, nodejs

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[jha-vineet69]

Hey @victor510295 pywrapcp is available under ortools.constraint_solver. Use "from ortools.constraint_solver import pywrapcp" instead.

[sannicosan]

OR-Tools really needs proper documentation to understand what is the parent modules of the subclasses you import.. Even in the guides, the imports are missing so you can't possibly know where they come from..

[lperron]

This is vague and not helping. Especially in python, all classes are prefixed by the name of the module

Doc is as good as possible, and clearly lacking. So sweeping statements are just not useful.

Thanks

Le mar. 31 janv. 2023, 18:39, Nicolás Sánchez @.***> a écrit :

OR-Tools really needs proper documentation to understand what is the parent modules of the subclasses you import.. Even in the guides, the imports are missing so you can't possibly know where they come from..

— Reply to this email directly, view it on GitHub https://github.com/google/or-tools/issues/1939#issuecomment-1410800783, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACUPL3JPCJZT5CQ5Z4NLXG3WVFE45ANCNFSM4LU4QUYA . You are receiving this because you commented.Message ID: @.***>

[Mizux]

OR-Tools really needs proper documentation to understand what is the parent modules of the subclasses you import.. Even in the guides, the imports are missing so you can't possibly know where they come from..

Which page ? https://developers.google.com/optimization/routing/vrp#complete_programs here you can see them...

[Ng-Cho-Yin]

try from ortools.constraint_solver import pywrapcp