From 7602cbb32aa4ed602698906e0862f679016a3114 Mon Sep 17 00:00:00 2001 From: Joao-Dionisio Date: Mon, 1 Dec 2025 15:36:51 +0100 Subject: [PATCH 1/4] license and contributors --- LICENSE | 222 ++++++++++++++++++++++++++++++++++++++++++++++++------ README.md | 20 +++++ 2 files changed, 221 insertions(+), 21 deletions(-) diff --git a/LICENSE b/LICENSE index 6eee35fad..2ae53bedb 100644 --- a/LICENSE +++ b/LICENSE @@ -1,21 +1,201 @@ -MIT License - -Copyright (c) 2023 Zuse Institute Berlin (ZIB) - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. Definitions. + +"License" shall mean the terms and conditions for use, reproduction, +and distribution as defined by Sections 1 through 9 of this document. + +"Licensor" shall mean the copyright owner or entity authorized by +the copyright owner that is granting the License. + +"Legal Entity" shall mean the union of the acting entity and all +other entities that control, are controlled by, or are under common +control with that entity. For the purposes of this definition, +"control" means (i) the power, direct or indirect, to cause the +direction or management of such entity, whether by contract or +otherwise, or (ii) ownership of fifty percent (50%) or more of the +outstanding shares, or (iii) beneficial ownership of such entity. + +"You" (or "Your") shall mean an individual or Legal Entity +exercising permissions granted by this License. + +"Source" form shall mean the preferred form for making modifications, +including but not limited to software source code, documentation +source, and configuration files. + +"Object" form shall mean any form resulting from mechanical +transformation or translation of a Source form, including but +not limited to compiled object code, generated documentation, +and conversions to other media types. + +"Work" shall mean the work of authorship, whether in Source or +Object form, made available under the License, as indicated by a +copyright notice that is included in or attached to the work +(an example is provided in the Appendix below). + +"Derivative Works" shall mean any work, whether in Source or Object +form, that is based on (or derived from) the Work and for which the +editorial revisions, annotations, elaborations, or other modifications +represent, as a whole, an original work of authorship. For the purposes +of this License, Derivative Works shall not include works that remain +separable from, or merely link (or bind by name) to the interfaces of, +the Work and Derivative Works thereof. + +"Contribution" shall mean any work of authorship, including +the original version of the Work and any modifications or additions +to that Work or Derivative Works thereof, that is intentionally +submitted to Licensor for inclusion in the Work by the copyright owner +or by an individual or Legal Entity authorized to submit on behalf of +the copyright owner. For the purposes of this definition, "submitted" +means any form of electronic, verbal, or written communication sent +to the Licensor or its representatives, including but not limited to +communication on electronic mailing lists, source code control systems, +and issue tracking systems that are managed by, or on behalf of, the +Licensor for the purpose of discussing and improving the Work, but +excluding communication that is conspicuously marked or otherwise +designated in writing by the copyright owner as "Not a Contribution." + +"Contributor" shall mean Licensor and any individual or Legal Entity +on behalf of whom a Contribution has been received by Licensor and +subsequently incorporated within the Work. + +2. Grant of Copyright License. Subject to the terms and conditions of +this License, each Contributor hereby grants to You a perpetual, +worldwide, non-exclusive, no-charge, royalty-free, irrevocable +copyright license to reproduce, prepare Derivative Works of, +publicly display, publicly perform, sublicense, and distribute the +Work and such Derivative Works in Source or Object form. + +3. Grant of Patent License. Subject to the terms and conditions of +this License, each Contributor hereby grants to You a perpetual, +worldwide, non-exclusive, no-charge, royalty-free, irrevocable +(except as stated in this section) patent license to make, have made, +use, offer to sell, sell, import, and otherwise transfer the Work, +where such license applies only to those patent claims licensable +by such Contributor that are necessarily infringed by their +Contribution(s) alone or by combination of their Contribution(s) +with the Work to which such Contribution(s) was submitted. If You +institute patent litigation against any entity (including a +cross-claim or counterclaim in a lawsuit) alleging that the Work +or a Contribution incorporated within the Work constitutes direct +or contributory patent infringement, then any patent licenses +granted to You under this License for that Work shall terminate +as of the date such litigation is filed. + +4. Redistribution. You may reproduce and distribute copies of the +Work or Derivative Works thereof in any medium, with or without +modifications, and in Source or Object form, provided that You +meet the following conditions: + +(a) You must give any other recipients of the Work or +Derivative Works a copy of this License; and + +(b) You must cause any modified files to carry prominent notices +stating that You changed the files; and + +(c) You must retain, in the Source form of any Derivative Works +that You distribute, all copyright, patent, trademark, and +attribution notices from the Source form of the Work, +excluding those notices that do not pertain to any part of +the Derivative Works; and + +(d) If the Work includes a "NOTICE" text file as part of its +distribution, then any Derivative Works that You distribute must +include a readable copy of the attribution notices contained +within such NOTICE file, excluding those notices that do not +pertain to any part of the Derivative Works, in at least one +of the following places: within a NOTICE text file distributed +as part of the Derivative Works; within the Source form or +documentation, if provided along with the Derivative Works; or, +within a display generated by the Derivative Works, if and +wherever such third-party notices normally appear. The contents +of the NOTICE file are for informational purposes only and +do not modify the License. You may add Your own attribution +notices within Derivative Works that You distribute, alongside +or as an addendum to the NOTICE text from the Work, provided +that such additional attribution notices cannot be construed +as modifying the License. + +You may add Your own copyright statement to Your modifications and +may provide additional or different license terms and conditions +for use, reproduction, or distribution of Your modifications, or +for any such Derivative Works as a whole, provided Your use, +reproduction, and distribution of the Work otherwise complies with +the conditions stated in this License. + +5. Submission of Contributions. Unless You explicitly state otherwise, +any Contribution intentionally submitted for inclusion in the Work +by You to the Licensor shall be under the terms and conditions of +this License, without any additional terms or conditions. +Notwithstanding the above, nothing herein shall supersede or modify +the terms of any separate license agreement you may have executed +with Licensor regarding such Contributions. + +6. Trademarks. This License does not grant permission to use the trade +names, trademarks, service marks, or product names of the Licensor, +except as required for reasonable and customary use in describing the +origin of the Work and reproducing the content of the NOTICE file. + +7. Disclaimer of Warranty. Unless required by applicable law or +agreed to in writing, Licensor provides the Work (and each +Contributor provides its Contributions) on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +implied, including, without limitation, any warranties or conditions +of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A +PARTICULAR PURPOSE. You are solely responsible for determining the +appropriateness of using or redistributing the Work and assume any +risks associated with Your exercise of permissions under this License. + +8. Limitation of Liability. In no event and under no legal theory, +whether in tort (including negligence), contract, or otherwise, +unless required by applicable law (such as deliberate and grossly +negligent acts) or agreed to in writing, shall any Contributor be +liable to You for damages, including any direct, indirect, special, +incidental, or consequential damages of any character arising as a +result of this License or out of the use or inability to use the +Work (including but not limited to damages for loss of goodwill, +work stoppage, computer failure or malfunction, or any and all +other commercial damages or losses), even if such Contributor +has been advised of the possibility of such damages. + +9. Accepting Warranty or Additional Liability. While redistributing +the Work or Derivative Works thereof, You may choose to offer, +and charge a fee for, acceptance of support, warranty, indemnity, +or other liability obligations and/or rights consistent with this +License. However, in accepting such obligations, You may act only +on Your own behalf and on Your sole responsibility, not on behalf +of any other Contributor, and only if You agree to indemnify, +defend, and hold each Contributor harmless for any liability +incurred by, or claims asserted against, such Contributor by reason +of your accepting any such warranty or additional liability. + +END OF TERMS AND CONDITIONS + +APPENDIX: How to apply the Apache License to your work. + +To apply the Apache License to your work, attach the following +boilerplate notice, with the fields enclosed by brackets "[]" +replaced with your own identifying information. (Don't include +the brackets!) The text should be enclosed in the appropriate +comment syntax for the file format. We also recommend that a +file or class name and description of purpose be included on the +same "printed page" as the copyright notice for easier +identification within third-party archives. + +Copyright 2026 Zuse Institute Berlin (ZIB) + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/README.md b/README.md index ed20f05c7..133556d20 100644 --- a/README.md +++ b/README.md @@ -119,3 +119,23 @@ Please cite [this paper](https://opus4.kobv.de/opus4-zib/frontdoor/index/index/d } ``` as well as the corresponding [SCIP Optimization Suite report](https://scip.zib.de/index.php#cite) when you use this tool for a publication or other scientific work. + +Seeking Maintainers +---------------------------------- + +PySCIPOpt is sustained by volunteer effort, and as the project grows we are inviting more contributors and maintainers to join the team. + +What needs to be done +---------------------- +These are the core responsibilities: + +* Community support: Going over the open issues regularly. Occasionally visiting Stack Overflow and OR.SE, as users also ask questions there. +* PR review: Reviewing user pull requests, making sure that the CHANGELOG is updated, and all added methods are tested. +* API coverage: keep expanding PySCIPOpt's coverage of SCIP's C API. +* Documentation: help keep the documentation up to date, and add new tutorials/examples. +* Releases: there should be a PySCIPOpt release with every SCIP release, at a minimum. + +Even if you are not interested in becoming a maintainer, but would like to help out occasionally, that would be very welcome as well! + +Send us an email over at **scip@zib.de** if you're ready to take on the challenge :) + From 1e6dfc8a7b25daff52076f5dc9f95632f9f55f67 Mon Sep 17 00:00:00 2001 From: Joao-Dionisio Date: Mon, 1 Dec 2025 15:39:44 +0100 Subject: [PATCH 2/4] replace mit --- CHANGELOG.md | 1 + pyproject.toml | 4 ++-- setup.py | 4 ++-- 3 files changed, 5 insertions(+), 4 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index cc0dfcb8c..0d9aabba5 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -4,6 +4,7 @@ ### Added ### Fixed ### Changed +- Switched license from MIT to Apache-2.0 ### Removed ## 6.0.0 - 2025.xx.yy diff --git a/pyproject.toml b/pyproject.toml index cb8ae2906..f432d72f6 100644 --- a/pyproject.toml +++ b/pyproject.toml @@ -11,12 +11,12 @@ authors = [ dependencies = ['numpy >=1.16.0'] requires-python = ">=3.8" readme = "README.md" -license = {text = "MIT"} +license = {text = "Apache-2.0"} classifiers = [ "Development Status :: 4 - Beta", "Intended Audience :: Education", "Intended Audience :: Science/Research", - "License :: OSI Approved :: MIT License", + "License :: OSI Approved :: Apache Software License", "Programming Language :: Cython", "Programming Language :: Python :: 3", "Topic :: Scientific/Engineering :: Mathematics", diff --git a/setup.py b/setup.py index 341877d97..44a06aea9 100644 --- a/setup.py +++ b/setup.py @@ -125,12 +125,12 @@ url="https://github.com/SCIP-Interfaces/PySCIPOpt", author="Zuse Institute Berlin", author_email="scip@zib.de", - license="MIT", + license="Apache-2.0", classifiers=[ "Development Status :: 4 - Beta", "Intended Audience :: Science/Research", "Intended Audience :: Education", - "License :: OSI Approved :: MIT License", + "License :: OSI Approved :: Apache Software License", "Programming Language :: Python :: 3", "Programming Language :: Cython", "Topic :: Scientific/Engineering :: Mathematics", From 608aced4115f89d36c99f593bed4f5ad04956234 Mon Sep 17 00:00:00 2001 From: Joao-Dionisio Date: Mon, 1 Dec 2025 15:59:06 +0100 Subject: [PATCH 3/4] improve iis docu --- docs/tutorials/iis.rst | 78 ++++++++++++++++-------------------------- 1 file changed, 30 insertions(+), 48 deletions(-) diff --git a/docs/tutorials/iis.rst b/docs/tutorials/iis.rst index cdaba58fb..e43d4b385 100644 --- a/docs/tutorials/iis.rst +++ b/docs/tutorials/iis.rst @@ -33,21 +33,18 @@ Let us create a simple infeasible model and then generate an IIS for it. .. code-block:: python - from pyscipopt import Model +x1 = model.addVar("x1", vtype="B") +x2 = model.addVar("x2", vtype="B") +x3 = model.addVar("x3", vtype="B") - m = Model() - x1 = m.addVar("x1", vtype="B") - x2 = m.addVar("x2", vtype="B") - x3 = m.addVar("x3", vtype="B") +# These four constraints cannot be satisfied simultaneously +model.addCons(x1 + x2 == 1, name="c1") +model.addCons(x2 + x3 == 1, name="c2") +model.addCons(x1 + x3 == 1, name="c3") +model.addCons(x1 + x2 + x3 <= 0, name="c4") - # These four constraints cannot be satisfied simultaneously - m.addCons(x1 + x2 == 1, name="c1") - m.addCons(x2 + x3 == 1, name="c2") - m.addCons(x1 + x3 == 1, name="c3") - m.addCons(x1 + x2 + x3 <= 0, name="c4") - - model.optimize() - iis = model.generateIIS() +model.optimize() +iis = model.generateIIS() When you run this code, SCIP will output a log showing the progress of finding the IIS: @@ -82,14 +79,14 @@ When you run this code, SCIP will output a log showing the progress of finding t Num. Vars. in IIS : 3 Num. Bounds in IIS : 6 +After SCIP finds that the model is infeasible, see that SCIP's IIS finders alternate between including constraints to make the problem feasible, and removing constraints to make the problem as small as possible. +You see in the final statistics that the IIS is indeed irreducible, with 3 variables and 2 constraints. + .. note:: While an already optimized infeasible model is not required to use the IIS functionality, it is encouraged to call this functionality only after ``model.optimize()``. Otherwise, SCIP will naturally optimize the base problem first to ensure that it is actually infeasible. - After SCIP finds that the model is infeasible, see that SCIP's IIS finders alternate between including constraints to make the problem feasible, and removing constraints to make the problem as small as possible. - You see in the final statistics that the IIS is indeed irreducible, with 3 variables and 2 constraints. - The IIS Object ============== @@ -98,7 +95,7 @@ The ``IIS`` object returned by ``generateIIS()`` can be queried to access the fo - **time**: The CPU time spent finding the IIS - **irreducible**: Boolean indicating if the IIS is irreducible - **nodes**: Number of nodes explored during IIS generation -- **model**: A ``Model`` object containing the subscip with the IIS constraints +- **subscip**: A ``Model`` object containing the subscip with the IIS constraints You can interact with the subscip to examine which constraints and variables are part of the IIS: @@ -125,47 +122,31 @@ for identifying infeasible subsystems. Basic Structure --------------- -To create a custom IIS finder, inherit from the ``IISfinder`` class and implement the ``iisfinderexec`` method: +To create a custom IIS finder, inherit from the ``IISfinder`` class and implement the ``iisfinderexec`` method. +This IISfinder just directly removes two constraints in the example above to yield an IIS: .. code-block:: python - from pyscipopt import Model, IISfinder, SCIP_RESULT + from pyscipopt import IISfinder, SCIP_RESULT class SimpleIISFinder(IISfinder): """ - A simple IIS finder that removes constraints one by one - until the problem becomes feasible. + Minimal working example: keep a known infeasible subset (by name) + and mark it as the IIS. """ def iisfinderexec(self): subscip = self.iis.getSubscip() - constraints = subscip.getConss() - - # Start with all constraints - active_constraints = set(constraints) - - for cons in constraints: - # Temporarily remove the constraint - active_constraints.discard(cons) - - # Check if remaining constraints are still infeasible - # (This would require setting up a sub-problem with only active_constraints) - # For simplicity, we use the full solve approach here - - subscip.freeTransform() - subscip.delCons(cons) - subscip.optimize() - - if subscip.getStatus() == SCIP_STATUS.INFEASIBLE: - # Still infeasible without this constraint - # Keep it removed - pass - else: - # Feasible without it, so constraint is needed in IIS - active_constraints.add(cons) - # In practice, you'd recreate the subscip with all active constraints - - iis.markIrreducible() + + # keep only constraints {c2, c4} and delete others + keep = {"c2", "c4"} + for cons in list(subscip.getConss()): + if cons.name not in keep: + subscip.delCons(cons) + + # Tell SCIP that our sub-SCIP represents an (irreducible) IIS + self.iis.setSubscipInfeasible(True) + self.iis.setSubscipIrreducible(True) return {"result": SCIP_RESULT.SUCCESS} Including Your Custom IIS Finder @@ -186,6 +167,7 @@ To use your custom IIS finder, include it in the model before calling ``generate model.addCons(x1 + x2 == 1, name="c1") model.addCons(x2 + x3 == 1, name="c2") model.addCons(x1 + x3 == 1, name="c3") + model.addCons(x1 + x2 + x3 <= 0, name="c4") # Create and include the custom IIS finder simple_iis = SimpleIISFinder() From f935a2e51b1c6c8701c51c47e73b2e4dc7cb0e47 Mon Sep 17 00:00:00 2001 From: Joao-Dionisio Date: Fri, 5 Dec 2025 17:07:13 +0100 Subject: [PATCH 4/4] remove apache license for later --- CHANGELOG.md | 1 - LICENSE | 203 ++----------------------------------------------- README.md | 2 +- pyproject.toml | 4 +- setup.py | 4 +- 5 files changed, 11 insertions(+), 203 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 4fe6ceb6d..4280e772c 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,7 +5,6 @@ ### Fixed - all fundamental callbacks now raise an error if not implemented ### Changed -- Switched license from MIT to Apache-2.0 ### Removed ## 6.0.0 - 2025.xx.yy diff --git a/LICENSE b/LICENSE index 2ae53bedb..63174e494 100644 --- a/LICENSE +++ b/LICENSE @@ -1,201 +1,10 @@ -Apache License -Version 2.0, January 2004 -http://www.apache.org/licenses/ +MIT License -TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION +Copyright (c) 2025 Zuse Institute Berlin (ZIB) -1. Definitions. +Permission is hereby granted, free of charge, to any person btaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: -"License" shall mean the terms and conditions for use, reproduction, -and distribution as defined by Sections 1 through 9 of this document. +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. -"Licensor" shall mean the copyright owner or entity authorized by -the copyright owner that is granting the License. - -"Legal Entity" shall mean the union of the acting entity and all -other entities that control, are controlled by, or are under common -control with that entity. For the purposes of this definition, -"control" means (i) the power, direct or indirect, to cause the -direction or management of such entity, whether by contract or -otherwise, or (ii) ownership of fifty percent (50%) or more of the -outstanding shares, or (iii) beneficial ownership of such entity. - -"You" (or "Your") shall mean an individual or Legal Entity -exercising permissions granted by this License. - -"Source" form shall mean the preferred form for making modifications, -including but not limited to software source code, documentation -source, and configuration files. - -"Object" form shall mean any form resulting from mechanical -transformation or translation of a Source form, including but -not limited to compiled object code, generated documentation, -and conversions to other media types. - -"Work" shall mean the work of authorship, whether in Source or -Object form, made available under the License, as indicated by a -copyright notice that is included in or attached to the work -(an example is provided in the Appendix below). - -"Derivative Works" shall mean any work, whether in Source or Object -form, that is based on (or derived from) the Work and for which the -editorial revisions, annotations, elaborations, or other modifications -represent, as a whole, an original work of authorship. For the purposes -of this License, Derivative Works shall not include works that remain -separable from, or merely link (or bind by name) to the interfaces of, -the Work and Derivative Works thereof. - -"Contribution" shall mean any work of authorship, including -the original version of the Work and any modifications or additions -to that Work or Derivative Works thereof, that is intentionally -submitted to Licensor for inclusion in the Work by the copyright owner -or by an individual or Legal Entity authorized to submit on behalf of -the copyright owner. For the purposes of this definition, "submitted" -means any form of electronic, verbal, or written communication sent -to the Licensor or its representatives, including but not limited to -communication on electronic mailing lists, source code control systems, -and issue tracking systems that are managed by, or on behalf of, the -Licensor for the purpose of discussing and improving the Work, but -excluding communication that is conspicuously marked or otherwise -designated in writing by the copyright owner as "Not a Contribution." - -"Contributor" shall mean Licensor and any individual or Legal Entity -on behalf of whom a Contribution has been received by Licensor and -subsequently incorporated within the Work. - -2. Grant of Copyright License. Subject to the terms and conditions of -this License, each Contributor hereby grants to You a perpetual, -worldwide, non-exclusive, no-charge, royalty-free, irrevocable -copyright license to reproduce, prepare Derivative Works of, -publicly display, publicly perform, sublicense, and distribute the -Work and such Derivative Works in Source or Object form. - -3. Grant of Patent License. Subject to the terms and conditions of -this License, each Contributor hereby grants to You a perpetual, -worldwide, non-exclusive, no-charge, royalty-free, irrevocable -(except as stated in this section) patent license to make, have made, -use, offer to sell, sell, import, and otherwise transfer the Work, -where such license applies only to those patent claims licensable -by such Contributor that are necessarily infringed by their -Contribution(s) alone or by combination of their Contribution(s) -with the Work to which such Contribution(s) was submitted. If You -institute patent litigation against any entity (including a -cross-claim or counterclaim in a lawsuit) alleging that the Work -or a Contribution incorporated within the Work constitutes direct -or contributory patent infringement, then any patent licenses -granted to You under this License for that Work shall terminate -as of the date such litigation is filed. - -4. Redistribution. You may reproduce and distribute copies of the -Work or Derivative Works thereof in any medium, with or without -modifications, and in Source or Object form, provided that You -meet the following conditions: - -(a) You must give any other recipients of the Work or -Derivative Works a copy of this License; and - -(b) You must cause any modified files to carry prominent notices -stating that You changed the files; and - -(c) You must retain, in the Source form of any Derivative Works -that You distribute, all copyright, patent, trademark, and -attribution notices from the Source form of the Work, -excluding those notices that do not pertain to any part of -the Derivative Works; and - -(d) If the Work includes a "NOTICE" text file as part of its -distribution, then any Derivative Works that You distribute must -include a readable copy of the attribution notices contained -within such NOTICE file, excluding those notices that do not -pertain to any part of the Derivative Works, in at least one -of the following places: within a NOTICE text file distributed -as part of the Derivative Works; within the Source form or -documentation, if provided along with the Derivative Works; or, -within a display generated by the Derivative Works, if and -wherever such third-party notices normally appear. The contents -of the NOTICE file are for informational purposes only and -do not modify the License. You may add Your own attribution -notices within Derivative Works that You distribute, alongside -or as an addendum to the NOTICE text from the Work, provided -that such additional attribution notices cannot be construed -as modifying the License. - -You may add Your own copyright statement to Your modifications and -may provide additional or different license terms and conditions -for use, reproduction, or distribution of Your modifications, or -for any such Derivative Works as a whole, provided Your use, -reproduction, and distribution of the Work otherwise complies with -the conditions stated in this License. - -5. Submission of Contributions. Unless You explicitly state otherwise, -any Contribution intentionally submitted for inclusion in the Work -by You to the Licensor shall be under the terms and conditions of -this License, without any additional terms or conditions. -Notwithstanding the above, nothing herein shall supersede or modify -the terms of any separate license agreement you may have executed -with Licensor regarding such Contributions. - -6. Trademarks. This License does not grant permission to use the trade -names, trademarks, service marks, or product names of the Licensor, -except as required for reasonable and customary use in describing the -origin of the Work and reproducing the content of the NOTICE file. - -7. Disclaimer of Warranty. Unless required by applicable law or -agreed to in writing, Licensor provides the Work (and each -Contributor provides its Contributions) on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or -implied, including, without limitation, any warranties or conditions -of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A -PARTICULAR PURPOSE. You are solely responsible for determining the -appropriateness of using or redistributing the Work and assume any -risks associated with Your exercise of permissions under this License. - -8. Limitation of Liability. In no event and under no legal theory, -whether in tort (including negligence), contract, or otherwise, -unless required by applicable law (such as deliberate and grossly -negligent acts) or agreed to in writing, shall any Contributor be -liable to You for damages, including any direct, indirect, special, -incidental, or consequential damages of any character arising as a -result of this License or out of the use or inability to use the -Work (including but not limited to damages for loss of goodwill, -work stoppage, computer failure or malfunction, or any and all -other commercial damages or losses), even if such Contributor -has been advised of the possibility of such damages. - -9. Accepting Warranty or Additional Liability. While redistributing -the Work or Derivative Works thereof, You may choose to offer, -and charge a fee for, acceptance of support, warranty, indemnity, -or other liability obligations and/or rights consistent with this -License. However, in accepting such obligations, You may act only -on Your own behalf and on Your sole responsibility, not on behalf -of any other Contributor, and only if You agree to indemnify, -defend, and hold each Contributor harmless for any liability -incurred by, or claims asserted against, such Contributor by reason -of your accepting any such warranty or additional liability. - -END OF TERMS AND CONDITIONS - -APPENDIX: How to apply the Apache License to your work. - -To apply the Apache License to your work, attach the following -boilerplate notice, with the fields enclosed by brackets "[]" -replaced with your own identifying information. (Don't include -the brackets!) The text should be enclosed in the appropriate -comment syntax for the file format. We also recommend that a -file or class name and description of purpose be included on the -same "printed page" as the copyright notice for easier -identification within third-party archives. - -Copyright 2026 Zuse Institute Berlin (ZIB) - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. \ No newline at end of file diff --git a/README.md b/README.md index 133556d20..75494b47f 100644 --- a/README.md +++ b/README.md @@ -137,5 +137,5 @@ These are the core responsibilities: Even if you are not interested in becoming a maintainer, but would like to help out occasionally, that would be very welcome as well! -Send us an email over at **scip@zib.de** if you're ready to take on the challenge :) +Send us an email over at **joao.goncalves.dionisio@gmail.com** if you're ready to take on the challenge :) diff --git a/pyproject.toml b/pyproject.toml index f432d72f6..7717fdcef 100644 --- a/pyproject.toml +++ b/pyproject.toml @@ -11,12 +11,12 @@ authors = [ dependencies = ['numpy >=1.16.0'] requires-python = ">=3.8" readme = "README.md" -license = {text = "Apache-2.0"} +license = {text = "MIT License"} classifiers = [ "Development Status :: 4 - Beta", "Intended Audience :: Education", "Intended Audience :: Science/Research", - "License :: OSI Approved :: Apache Software License", + "License :: OSI Approved :: MIT License", "Programming Language :: Cython", "Programming Language :: Python :: 3", "Topic :: Scientific/Engineering :: Mathematics", diff --git a/setup.py b/setup.py index a45b388a3..936ae15ae 100644 --- a/setup.py +++ b/setup.py @@ -136,12 +136,12 @@ url="https://github.com/SCIP-Interfaces/PySCIPOpt", author="Zuse Institute Berlin", author_email="scip@zib.de", - license="Apache-2.0", + license="MIT", classifiers=[ "Development Status :: 4 - Beta", "Intended Audience :: Science/Research", "Intended Audience :: Education", - "License :: OSI Approved :: Apache Software License", + "License :: OSI Approved :: MIT License", "Programming Language :: Python :: 3", "Programming Language :: Cython", "Topic :: Scientific/Engineering :: Mathematics",