From dc704f5e59af3d9f821241fe5bb40b887aebd7be Mon Sep 17 00:00:00 2001
From: Fabrizio Finozzi <fabrizio.finozzi.business@gmail.com>
Date: Sun, 7 Dec 2025 15:25:36 +0100
Subject: [PATCH 1/2] code: add knitro to pyproject.toml

---
 linopy/solvers.py | 5 +++++
 pyproject.toml    | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/linopy/solvers.py b/linopy/solvers.py
index a121a2b5..964a209e 100644
--- a/linopy/solvers.py
+++ b/linopy/solvers.py
@@ -48,6 +48,7 @@
     "mosek",
     "copt",
     "mindopt",
+    "knitro"
 ]
 
 # Solvers that don't need a solution file when keep_files=False
@@ -145,6 +146,9 @@ class xpress_Namespaces:  # type: ignore[no-redef]
     except coptpy.CoptError:
         pass
 
+with contextlib.suppress(ModuleNotFoundError, ImportError):
+    import knitro
+
 quadratic_solvers = [s for s in QUADRATIC_SOLVERS if s in available_solvers]
 logger = logging.getLogger(__name__)
 
@@ -176,6 +180,7 @@ class SolverName(enum.Enum):
     COPT = "copt"
     MindOpt = "mindopt"
     PIPS = "pips"
+    Knitro = "knitro"
 
 
 def path_to_string(path: Path) -> str:
diff --git a/pyproject.toml b/pyproject.toml
index b5105230..2370d0f9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -58,6 +58,7 @@ docs = [
     "gurobipy==11.0.2",
     "ipykernel==6.29.5",
     "matplotlib==3.9.1",
+    "knitro>=15.0.1",
 ]
 dev = [
     "pytest",
@@ -70,6 +71,7 @@ dev = [
     "types-requests",
     "gurobipy",
     "highspy",
+    "knitro",
 ]
 solvers = [
     "gurobipy",
@@ -81,6 +83,7 @@ solvers = [
     "coptpy!=7.2.1",
     "xpress; platform_system != 'Darwin' and python_version < '3.11'",
     "pyscipopt; platform_system != 'Darwin'",
+    "knitro>=15.0.1",
 ]
 
 [tool.setuptools.packages.find]

From 0fb49f998f0144bd5b6533f89744ea6cf2792ec4 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Sun, 7 Dec 2025 14:26:41 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 linopy/solvers.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linopy/solvers.py b/linopy/solvers.py
index 964a209e..023dcb5d 100644
--- a/linopy/solvers.py
+++ b/linopy/solvers.py
@@ -48,7 +48,7 @@
     "mosek",
     "copt",
     "mindopt",
-    "knitro"
+    "knitro",
 ]
 
 # Solvers that don't need a solution file when keep_files=False
@@ -147,7 +147,7 @@ class xpress_Namespaces:  # type: ignore[no-redef]
         pass
 
 with contextlib.suppress(ModuleNotFoundError, ImportError):
-    import knitro
+    pass
 
 quadratic_solvers = [s for s in QUADRATIC_SOLVERS if s in available_solvers]
 logger = logging.getLogger(__name__)