Bugfix/gurobi license and docs (#556)

* fix example notebooks

* minor changes

* minor changes

---------

Co-authored-by: Robbie Muir <robbie.muir@gmail.com>

Author: RobbieKiwi

doc/release_notes.rst

@@ -4,6 +4,7 @@ Release Notes
 Upcoming Version
 ----------------
 
+* Fix docs (pick highs solver)
 * Add the `sphinx-copybutton` to the documentation
 
 Version 0.6.1

examples/create-a-model-with-coordinates.ipynb

@@ -150,7 +150,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "m.solve()"
+    "m.solve(solver_name=\"highs\")"
    ]
   },
   {

examples/create-a-model.ipynb

@@ -215,7 +215,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "m.solve()"
+    "m.solve(solver_name=\"highs\")"
    ]
   },
   {

examples/manipulating-models.ipynb

@@ -48,9 +48,9 @@
     "con2 = m.add_constraints(5 * x + 2 * y >= 3 * factor, name=\"con2\")\n",
     "\n",
     "m.add_objective(x + 2 * y)\n",
-    "m.solve()\n",
+    "m.solve(solver_name=\"highs\")\n",
     "\n",
-    "m.solve()\n",
+    "m.solve(solver_name=\"highs\")\n",
     "sol = m.solution.to_dataframe()\n",
     "sol.plot(grid=True, ylabel=\"Optimal Value\")"
    ]
@@ -95,7 +95,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "m.solve()\n",
+    "m.solve(solver_name=\"highs\")\n",
     "sol = m.solution.to_dataframe()\n",
     "sol.plot(grid=True, ylabel=\"Optimal Value\")"
    ]
@@ -137,7 +137,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "m.solve()\n",
+    "m.solve(solver_name=\"highs\")\n",
     "sol = m.solution.to_dataframe()\n",
     "sol.plot(grid=True, ylabel=\"Optimal Value\")"
    ]
@@ -190,7 +190,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "m.solve()\n",
+    "m.solve(solver_name=\"highs\")\n",
     "sol = m.solution.to_dataframe()\n",
     "sol.plot(grid=True, ylabel=\"Optimal Value\")"
    ]
@@ -242,7 +242,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "m.solve()\n",
+    "m.solve(solver_name=\"highs\")\n",
     "sol = m.solution.to_dataframe()\n",
     "sol.plot(grid=True, ylabel=\"Optimal Value\")"
    ]
@@ -276,7 +276,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "m.solve()\n",
+    "m.solve(solver_name=\"highs\")\n",
     "sol = m.solution.to_dataframe()\n",
     "sol.plot(grid=True, ylabel=\"Optimal Value\")"
    ]

examples/solve-on-oetc.ipynb

@@ -169,7 +169,7 @@
     "start_time = time.time()\n",
     "\n",
     "try:\n",
-    "    status, termination_condition = m.solve(remote=oetc_handler)\n",
+    "    status, termination_condition = m.solve(remote=oetc_handler, solver_name=\"highs\")\n",
     "\n",
     "    end_time = time.time()\n",
     "    total_time = end_time - start_time\n",

examples/transport-tutorial.ipynb

@@ -407,7 +407,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "In the `solve()` function, you can specify a `solver_name`. The default solver, however, will be the first from the list we printed above."
+    "In the `solve()` function, you can specify a `solver_name`. The default solver, however, will be the first from the list we printed above. In this example, we will specify a solver explicitly to avoid licensing issues."
    ]
   },
   {
@@ -417,7 +417,7 @@
    "outputs": [],
    "source": [
     "# Solve the model\n",
-    "m.solve()"
+    "m.solve(solver_name=\"highs\")"
    ]
   },
   {