diff --git a/_sources/book/about/instructor.ipynb b/_sources/book/about/instructor.ipynb
index eb4afcc..c951f77 100644
--- a/_sources/book/about/instructor.ipynb
+++ b/_sources/book/about/instructor.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "df76a729",
+   "id": "04217fdf",
    "metadata": {},
    "source": [
     "## Instructor\n",
diff --git a/_sources/book/about/schedule.ipynb b/_sources/book/about/schedule.ipynb
index 3c3bea1..425e3fe 100644
--- a/_sources/book/about/schedule.ipynb
+++ b/_sources/book/about/schedule.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "93d073df",
+   "id": "5af69a2e",
    "metadata": {},
    "source": [
     "# Schedule\n",
diff --git a/_sources/book/about/syllabus.ipynb b/_sources/book/about/syllabus.ipynb
index 2ba7320..42c0740 100644
--- a/_sources/book/about/syllabus.ipynb
+++ b/_sources/book/about/syllabus.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "4f64fbcb",
+   "id": "72cc7cb6",
    "metadata": {},
    "source": [
     "# Syllabus\n",
diff --git a/_sources/book/geospatial/01_get_started.ipynb b/_sources/book/geospatial/01_get_started.ipynb
index 8218207..16b89f0 100644
--- a/_sources/book/geospatial/01_get_started.ipynb
+++ b/_sources/book/geospatial/01_get_started.ipynb
@@ -10,7 +10,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "id": "1",
    "metadata": {},
    "outputs": [],
@@ -21,7 +21,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "21097157",
+   "id": "2",
    "metadata": {},
    "outputs": [],
    "source": [
diff --git a/_sources/book/software/miniconda.ipynb b/_sources/book/software/miniconda.ipynb
index 1fcd21c..34f543c 100644
--- a/_sources/book/software/miniconda.ipynb
+++ b/_sources/book/software/miniconda.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "7c815a94",
+   "id": "938ab1d3",
    "metadata": {},
    "source": [
     "# Miniconda\n",
diff --git a/_sources/book/software/overview.ipynb b/_sources/book/software/overview.ipynb
index 50965ba..23e0c2c 100644
--- a/_sources/book/software/overview.ipynb
+++ b/_sources/book/software/overview.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "ce1b72e4",
+   "id": "b525de2d",
    "metadata": {},
    "source": [
     "# Overview\n",
diff --git a/book/geospatial/01_get_started.html b/book/geospatial/01_get_started.html
index 2923049..33e8ca1 100644
--- a/book/geospatial/01_get_started.html
+++ b/book/geospatial/01_get_started.html
@@ -531,7 +531,7 @@ <h1><span class="section-number">8. </span>Get Started<a class="headerlink" href
             &lt;meta name=&quot;viewport&quot; content=&quot;width=device-width,
                 initial-scale=1.0, maximum-scale=1.0, user-scalable=no&quot; /&gt;
             &lt;style&gt;
-                #map_1638534ca2d35186c80b395aeed7e7c2 {
+                #map_a7df18c57aad4797c33d0ab50f31366f {
                     position: relative;
                     width: 100.0%;
                     height: 100.0%;
@@ -553,14 +553,14 @@ <h1><span class="section-number">8. </span>Get Started<a class="headerlink" href
 &lt;body&gt;
     
     
-            &lt;div class=&quot;folium-map&quot; id=&quot;map_1638534ca2d35186c80b395aeed7e7c2&quot; &gt;&lt;/div&gt;
+            &lt;div class=&quot;folium-map&quot; id=&quot;map_a7df18c57aad4797c33d0ab50f31366f&quot; &gt;&lt;/div&gt;
         
 &lt;/body&gt;
 &lt;script&gt;
     
     
-            var map_1638534ca2d35186c80b395aeed7e7c2 = L.map(
-                &quot;map_1638534ca2d35186c80b395aeed7e7c2&quot;,
+            var map_a7df18c57aad4797c33d0ab50f31366f = L.map(
+                &quot;map_a7df18c57aad4797c33d0ab50f31366f&quot;,
                 {
                     center: [20.0, 0.0],
                     crs: L.CRS.EPSG3857,
@@ -571,24 +571,24 @@ <h1><span class="section-number">8. </span>Get Started<a class="headerlink" href
                     layersControl: true,
                 }
             );
-            L.control.scale().addTo(map_1638534ca2d35186c80b395aeed7e7c2);
+            L.control.scale().addTo(map_a7df18c57aad4797c33d0ab50f31366f);
 
             
 
         
     
-            var tile_layer_9696ba6a893c3cf519eb003386158e42 = L.tileLayer(
+            var tile_layer_a544a64e513b8cda0a4d28f11bf4cfa1 = L.tileLayer(
                 &quot;https://tile.openstreetmap.org/{z}/{x}/{y}.png&quot;,
                 {&quot;attribution&quot;: &quot;\u0026copy; \u003ca href=\&quot;https://www.openstreetmap.org/copyright\&quot;\u003eOpenStreetMap\u003c/a\u003e contributors&quot;, &quot;detectRetina&quot;: false, &quot;maxNativeZoom&quot;: 19, &quot;maxZoom&quot;: 24, &quot;minZoom&quot;: 0, &quot;noWrap&quot;: false, &quot;opacity&quot;: 1, &quot;subdomains&quot;: &quot;abc&quot;, &quot;tms&quot;: false}
             );
         
     
-            tile_layer_9696ba6a893c3cf519eb003386158e42.addTo(map_1638534ca2d35186c80b395aeed7e7c2);
+            tile_layer_a544a64e513b8cda0a4d28f11bf4cfa1.addTo(map_a7df18c57aad4797c33d0ab50f31366f);
         
     
             L.control.fullscreen(
                 {&quot;forceSeparateButton&quot;: false, &quot;position&quot;: &quot;topleft&quot;, &quot;title&quot;: &quot;Full Screen&quot;, &quot;titleCancel&quot;: &quot;Exit Full Screen&quot;}
-            ).addTo(map_1638534ca2d35186c80b395aeed7e7c2);
+            ).addTo(map_a7df18c57aad4797c33d0ab50f31366f);
         
     
             var options = {
@@ -597,14 +597,14 @@ <h1><span class="section-number">8. </span>Get Started<a class="headerlink" href
               edit: {},
             }
             // FeatureGroup is to store editable layers.
-            var drawnItems_draw_control_671b62627f711e68d81a575006c9154d = new L.featureGroup().addTo(
-                map_1638534ca2d35186c80b395aeed7e7c2
+            var drawnItems_draw_control_911f8cecd40db4ab8ee6863df0890a1f = new L.featureGroup().addTo(
+                map_a7df18c57aad4797c33d0ab50f31366f
             );
-            options.edit.featureGroup = drawnItems_draw_control_671b62627f711e68d81a575006c9154d;
-            var draw_control_671b62627f711e68d81a575006c9154d = new L.Control.Draw(
+            options.edit.featureGroup = drawnItems_draw_control_911f8cecd40db4ab8ee6863df0890a1f;
+            var draw_control_911f8cecd40db4ab8ee6863df0890a1f = new L.Control.Draw(
                 options
-            ).addTo( map_1638534ca2d35186c80b395aeed7e7c2 );
-            map_1638534ca2d35186c80b395aeed7e7c2.on(L.Draw.Event.CREATED, function(e) {
+            ).addTo( map_a7df18c57aad4797c33d0ab50f31366f );
+            map_a7df18c57aad4797c33d0ab50f31366f.on(L.Draw.Event.CREATED, function(e) {
                 var layer = e.layer,
                     type = e.layerType;
                 var coords = JSON.stringify(layer.toGeoJSON());
@@ -612,17 +612,17 @@ <h1><span class="section-number">8. </span>Get Started<a class="headerlink" href
                     alert(coords);
                     console.log(coords);
                 });
-                drawnItems_draw_control_671b62627f711e68d81a575006c9154d.addLayer(layer);
+                drawnItems_draw_control_911f8cecd40db4ab8ee6863df0890a1f.addLayer(layer);
              });
-            map_1638534ca2d35186c80b395aeed7e7c2.on(&#x27;draw:created&#x27;, function(e) {
-                drawnItems_draw_control_671b62627f711e68d81a575006c9154d.addLayer(e.layer);
+            map_a7df18c57aad4797c33d0ab50f31366f.on(&#x27;draw:created&#x27;, function(e) {
+                drawnItems_draw_control_911f8cecd40db4ab8ee6863df0890a1f.addLayer(e.layer);
             });
             
         
     
-            var measure_control_e70230025a28224cdb4d9b848febb5e5 = new L.Control.Measure(
+            var measure_control_f08ae6332aff4c376d94bc89477f8c29 = new L.Control.Measure(
                 {&quot;position&quot;: &quot;bottomleft&quot;, &quot;primaryAreaUnit&quot;: &quot;sqmeters&quot;, &quot;primaryLengthUnit&quot;: &quot;meters&quot;, &quot;secondaryAreaUnit&quot;: &quot;acres&quot;, &quot;secondaryLengthUnit&quot;: &quot;miles&quot;});
-            map_1638534ca2d35186c80b395aeed7e7c2.addControl(measure_control_e70230025a28224cdb4d9b848febb5e5);
+            map_a7df18c57aad4797c33d0ab50f31366f.addControl(measure_control_f08ae6332aff4c376d94bc89477f8c29);
 
             // Workaround for using this plugin with Leaflet&gt;=1.8.0
             // https://github.com/ljagis/leaflet-measure/issues/171
@@ -642,43 +642,43 @@ <h1><span class="section-number">8. </span>Get Started<a class="headerlink" href
         
     
 
-            var geocoderOpts_geocoder_55a15d15476f034c17defb5dcd060c6e = {&quot;collapsed&quot;: true, &quot;defaultMarkGeocode&quot;: true, &quot;position&quot;: &quot;topleft&quot;, &quot;provider&quot;: &quot;nominatim&quot;, &quot;providerOptions&quot;: {}, &quot;zoom&quot;: 11};
+            var geocoderOpts_geocoder_902b043fd484601a07fec6ae205271cd = {&quot;collapsed&quot;: true, &quot;defaultMarkGeocode&quot;: true, &quot;position&quot;: &quot;topleft&quot;, &quot;provider&quot;: &quot;nominatim&quot;, &quot;providerOptions&quot;: {}, &quot;zoom&quot;: 11};
 
             // note: geocoder name should start with lowercase
-            var geocoderName_geocoder_55a15d15476f034c17defb5dcd060c6e = geocoderOpts_geocoder_55a15d15476f034c17defb5dcd060c6e[&quot;provider&quot;];
+            var geocoderName_geocoder_902b043fd484601a07fec6ae205271cd = geocoderOpts_geocoder_902b043fd484601a07fec6ae205271cd[&quot;provider&quot;];
 
-            var customGeocoder_geocoder_55a15d15476f034c17defb5dcd060c6e = L.Control.Geocoder[ geocoderName_geocoder_55a15d15476f034c17defb5dcd060c6e ](
-                geocoderOpts_geocoder_55a15d15476f034c17defb5dcd060c6e[&#x27;providerOptions&#x27;]
+            var customGeocoder_geocoder_902b043fd484601a07fec6ae205271cd = L.Control.Geocoder[ geocoderName_geocoder_902b043fd484601a07fec6ae205271cd ](
+                geocoderOpts_geocoder_902b043fd484601a07fec6ae205271cd[&#x27;providerOptions&#x27;]
             );
-            geocoderOpts_geocoder_55a15d15476f034c17defb5dcd060c6e[&quot;geocoder&quot;] = customGeocoder_geocoder_55a15d15476f034c17defb5dcd060c6e;
+            geocoderOpts_geocoder_902b043fd484601a07fec6ae205271cd[&quot;geocoder&quot;] = customGeocoder_geocoder_902b043fd484601a07fec6ae205271cd;
 
             L.Control.geocoder(
-                geocoderOpts_geocoder_55a15d15476f034c17defb5dcd060c6e
+                geocoderOpts_geocoder_902b043fd484601a07fec6ae205271cd
             ).on(&#x27;markgeocode&#x27;, function(e) {
-                var zoom = geocoderOpts_geocoder_55a15d15476f034c17defb5dcd060c6e[&#x27;zoom&#x27;] || map_1638534ca2d35186c80b395aeed7e7c2.getZoom();
-                map_1638534ca2d35186c80b395aeed7e7c2.setView(e.geocode.center, zoom);
-            }).addTo(map_1638534ca2d35186c80b395aeed7e7c2);
+                var zoom = geocoderOpts_geocoder_902b043fd484601a07fec6ae205271cd[&#x27;zoom&#x27;] || map_a7df18c57aad4797c33d0ab50f31366f.getZoom();
+                map_a7df18c57aad4797c33d0ab50f31366f.setView(e.geocode.center, zoom);
+            }).addTo(map_a7df18c57aad4797c33d0ab50f31366f);
 
         
     
-            map_1638534ca2d35186c80b395aeed7e7c2.fitBounds(
+            map_a7df18c57aad4797c33d0ab50f31366f.fitBounds(
                 [[20, 0], [20, 0]],
                 {&quot;maxZoom&quot;: 2}
             );
         
     
-            var layer_control_371687819fe8fa30659cea23b5d25e22_layers = {
+            var layer_control_c311a120e34b394ccd63743cd8417afb_layers = {
                 base_layers : {
-                    &quot;openstreetmap&quot; : tile_layer_9696ba6a893c3cf519eb003386158e42,
+                    &quot;openstreetmap&quot; : tile_layer_a544a64e513b8cda0a4d28f11bf4cfa1,
                 },
                 overlays :  {
                 },
             };
-            let layer_control_371687819fe8fa30659cea23b5d25e22 = L.control.layers(
-                layer_control_371687819fe8fa30659cea23b5d25e22_layers.base_layers,
-                layer_control_371687819fe8fa30659cea23b5d25e22_layers.overlays,
+            let layer_control_c311a120e34b394ccd63743cd8417afb = L.control.layers(
+                layer_control_c311a120e34b394ccd63743cd8417afb_layers.base_layers,
+                layer_control_c311a120e34b394ccd63743cd8417afb_layers.overlays,
                 {&quot;autoZIndex&quot;: true, &quot;collapsed&quot;: true, &quot;position&quot;: &quot;topright&quot;}
-            ).addTo(map_1638534ca2d35186c80b395aeed7e7c2);
+            ).addTo(map_a7df18c57aad4797c33d0ab50f31366f);
 
         
 &lt;/script&gt;
diff --git a/book/python/03_data_structures.html b/book/python/03_data_structures.html
index 9e295e5..98e1744 100644
--- a/book/python/03_data_structures.html
+++ b/book/python/03_data_structures.html
@@ -600,7 +600,7 @@ <h2><span class="section-number">3.3. </span>Sets<a class="headerlink" href="#se
 </div>
 </div>
 <div class="cell_output docutils container">
-<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Updated regions: {&#39;Europe&#39;, &#39;North America&#39;, &#39;Africa&#39;, &#39;Asia&#39;}
+<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Updated regions: {&#39;Asia&#39;, &#39;Africa&#39;, &#39;North America&#39;, &#39;Europe&#39;}
 </pre></div>
 </div>
 </div>
@@ -614,7 +614,7 @@ <h2><span class="section-number">3.3. </span>Sets<a class="headerlink" href="#se
 </div>
 </div>
 <div class="cell_output docutils container">
-<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Regions after attempting to add duplicate: {&#39;Europe&#39;, &#39;North America&#39;, &#39;Africa&#39;, &#39;Asia&#39;}
+<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Regions after attempting to add duplicate: {&#39;Asia&#39;, &#39;Africa&#39;, &#39;North America&#39;, &#39;Europe&#39;}
 </pre></div>
 </div>
 </div>