fixes

docs/source/examples/freeing_fixed_variables.py

@@ -4,7 +4,7 @@
 y = Variable("y", 3)  # fix value to 3
 m = Model(x, [x >= 1 + y, y >= 1])
 # verbosity is 0 for testing's sake, no need to do that in your code!
-sol = m.solve()  # optimal cost is 4; y appears in sol["constants"]
+sol = m.solve(verbosity=0)  # optimal cost is 4; y appears in sol["constants"]
 
 assert abs(sol["cost"] - 4) <= 1e-4
 assert y in sol["constants"]

docs/source/figures/documentation sankeys.ipynb

@@ -55,7 +55,12 @@
       "Warning: skipped auto-differentiation of linked variable Aircraft.Empennage.HorizontalTail.Planform.cbarmac because NotImplementedError(\"Automatic differentiation not yet supported for <class 'pint.quantity.build_quantity_class.<locals>.Quantity'> objects\") was raised. Set `gpkit.settings[\"ad_errors_raise\"] = True` to raise such Exceptions directly.\n",
       "\n",
       "Warning: skipped auto-differentiation of linked variable Aircraft.Empennage.VerticalTail.Planform.cbarmac because NotImplementedError(\"Automatic differentiation not yet supported for <class 'pint.quantity.build_quantity_class.<locals>.Quantity'> objects\") was raised. Set `gpkit.settings[\"ad_errors_raise\"] = True` to raise such Exceptions directly.\n",
-      "\n"
+      "\n",
+      "Starting a sequence of GP solves\n",
+      " for 97 free variables\n",
+      "  in 23 locally-GP constraints\n",
+      "  and for 1032 free variables\n",
+      "       in 1384 posynomial inequalities.\n"
      ]
     },
     {
@@ -70,12 +75,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Starting a sequence of GP solves\n",
-      " for 97 free variables\n",
-      "  in 23 locally-GP constraints\n",
-      "  and for 1032 free variables\n",
-      "       in 1384 posynomial inequalities.\n",
-      "Solving took 1.28 seconds and 4 GP solves.\n",
+      "Solving took 1.3 seconds and 4 GP solves.\n",
       "Warning: Variable Mission.Climb.AircraftDrag.WingAero.CL[:] could cause inaccurate result because it is below lower bound. Solution is 1.0302 but bound is 0.9465\n",
       "Warning: Variable Mission.Climb.AircraftDrag.WingAero.Re[:] could cause inaccurate result because it is above upper bound. Solution is 1230806.2495 but bound is 600000.0000\n",
       "Warning: Variable Mission.Climb.AircraftDrag.TailAero1.Re[:] could cause inaccurate result because it is above upper bound. Solution is 1152795.0157 but bound is 1000000.0000\n"
@@ -108,7 +108,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "e7b89175684c40a9847107e9be98ede6",
+       "model_id": "f7674899347547bcbe724d1f6bb2af10",
        "version_major": 2,
        "version_minor": 0
       },
@@ -137,7 +137,31 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "f2e8bb63a12d4d5490f56d61cc51e84c",
+       "model_id": "14c3f385c3684b0286408f8d59d4a1eb",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "SankeyWidget(layout=Layout(height='400', width='1000'), links=[{'source': 'Mission.0001.0021', 'target': 'Miss…"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "Sankey(sol, M).diagram(minsenss=1, maxlinks=30, left=130, showconstraints=False)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "472bc4a9882641ad894031d6b1bdd6cf",
        "version_major": 2,
        "version_minor": 0
       },
@@ -155,13 +179,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "6c7618d71dd349b4b130afa613d6f1a6",
+       "model_id": "8b9c2ec1fb5d44698a5079afdba5b703",
        "version_major": 2,
        "version_minor": 0
       },
@@ -179,13 +203,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "3663b7ed2f014a4bbd5de4403548d091",
+       "model_id": "0027a5530f21403dab17842217089def",
        "version_major": 2,
        "version_minor": 0
       },
@@ -203,13 +227,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "1f174e1129fd4997a86907f5852afa02",
+       "model_id": "12db93e8a7e44ae782133c8c29a859e8",
        "version_major": 2,
        "version_minor": 0
       },
@@ -227,13 +251,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "81575a60603848a68073c6d90f96ad0b",
+       "model_id": "e26c56693b414d83ad57334447475cc4",
        "version_major": 2,
        "version_minor": 0
       },
@@ -251,18 +275,18 @@
     "reload(gpkit.interactive.sankey)\n",
     "Sankey = gpkit.interactive.sankey.Sankey\n",
     "\n",
-    "Sankey(sol, M, \"SolarMission\").diagram(maxlinks=30, showconstraints=False, height=700, left=100)"
+    "Sankey(sol, M, \"SolarMission\").diagram(maxlinks=30, showconstraints=False, height=700)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "96fc20dcc7434561b85a725420a58bdf",
+       "model_id": "3574d35d01464fe8a4bef3b16f1f16e8",
        "version_major": 2,
        "version_minor": 0
       },

docs/source/visint.rst

@@ -120,12 +120,11 @@ without any tight constraints or sensitive fixed variables.
 
 .. code:: python
 
-    Sankey(sol, M, "SolarMission").diagram(maxlinks=30, showconstraints=False,
-                                           height=700, left=100)
+    Sankey(sol, M, "SolarMission").diagram(maxlinks=30, showconstraints=False, height=700)
 
 .. figure:: figures/sankey_autosaves/SolarMission.png
 
-Note that in addition to the ``left`` and ``showconstraints`` syntax introduced above,
+Note that in addition to the ``showconstraints`` syntax introduced above,
 this uses two additional arguments you may find useful when visualizing large models:
 ``height`` sets the height of the diagram in pixels (similarly for ``width``),
 while ``maxlinks`` increases the maximum number of links (default 20), making

gpkit/interactive/sankey.py

@@ -5,7 +5,7 @@
 from collections.abc import Iterable
 import numpy as np
 from ipywidgets import Layout
-from ipysankeywidget import SankeyWidget  # pylint: disable=import-error
+from ipysankeywidget import SankeyWidget
 from ..repr_conventions import lineagestr, unitstr
 from .. import Model, GPCOLORS
 from ..constraints.array import ArrayConstraint