More fixes

Author: lpozo

altair-python/altair-python.ipynb

@@ -99,14 +99,20 @@
     "import altair as alt\n",
     "import pandas as pd\n",
     "\n",
-    "steps = pd.DataFrame({\n",
-    "    \"Day\": [\"1-Mon\", \"2-Tue\", \"3-Wed\", \"4-Thu\", \"5-Fri\", \"6-Sat\", \"7-Sun\"],\n",
-    "    \"Steps\": [6200, 8400, 7100, 9800, 5500, 9870, 3769],\n",
-    "})\n",
+    "steps = pd.DataFrame(\n",
+    "    {\n",
+    "        \"Day\": [\"1-Mon\", \"2-Tue\", \"3-Wed\", \"4-Thu\", \"5-Fri\", \"6-Sat\", \"7-Sun\"],\n",
+    "        \"Steps\": [6200, 8400, 7100, 9800, 5500, 9870, 3769],\n",
+    "    }\n",
+    ")\n",
     "\n",
-    "weekly_steps = alt.Chart(steps).mark_bar().encode(\n",
-    "    x=\"Day\",\n",
-    "    y=\"Steps\",\n",
+    "weekly_steps = (\n",
+    "    alt.Chart(steps)\n",
+    "    .mark_bar()\n",
+    "    .encode(\n",
+    "        x=\"Day\",\n",
+    "        y=\"Steps\",\n",
+    "    )\n",
     ")\n",
     "weekly_steps"
    ]
@@ -129,10 +135,15 @@
     "from altair.datasets import data\n",
     "\n",
     "movies = data.movies()\n",
-    "movies = movies.dropna(subset=[\n",
-    "    \"Production Budget\", \"Worldwide Gross\",\n",
-    "    \"IMDB Rating\", \"Major Genre\", \"MPAA Rating\",\n",
-    "])"
+    "movies = movies.dropna(\n",
+    "    subset=[\n",
+    "        \"Production Budget\",\n",
+    "        \"Worldwide Gross\",\n",
+    "        \"IMDB Rating\",\n",
+    "        \"Major Genre\",\n",
+    "        \"MPAA Rating\",\n",
+    "    ]\n",
+    ")"
    ]
   },
   {
@@ -231,9 +242,13 @@
     }
    ],
    "source": [
-    "scatter = alt.Chart(movies).mark_point().encode(\n",
-    "    x=\"Production Budget:Q\",\n",
-    "    y=\"Worldwide Gross:Q\",\n",
+    "scatter = (\n",
+    "    alt.Chart(movies)\n",
+    "    .mark_point()\n",
+    "    .encode(\n",
+    "        x=\"Production Budget:Q\",\n",
+    "        y=\"Worldwide Gross:Q\",\n",
+    "    )\n",
     ")\n",
     "scatter"
    ]
@@ -334,12 +349,16 @@
     }
    ],
    "source": [
-    "scatter = alt.Chart(movies).mark_point().encode(\n",
-    "    x=\"Production Budget:Q\",\n",
-    "    y=\"Worldwide Gross:Q\",\n",
-    "    color=\"Major Genre:N\",\n",
-    "    size=\"IMDB Rating:Q\",\n",
-    "    tooltip=[\"Title:N\", \"IMDB Rating:Q\"],\n",
+    "scatter = (\n",
+    "    alt.Chart(movies)\n",
+    "    .mark_point()\n",
+    "    .encode(\n",
+    "        x=\"Production Budget:Q\",\n",
+    "        y=\"Worldwide Gross:Q\",\n",
+    "        color=\"Major Genre:N\",\n",
+    "        size=\"IMDB Rating:Q\",\n",
+    "        tooltip=[\"Title:N\", \"IMDB Rating:Q\"],\n",
+    "    )\n",
     ")\n",
     "scatter"
    ]
@@ -440,13 +459,17 @@
     }
    ],
    "source": [
-    "scatter = alt.Chart(movies).mark_point().encode(\n",
-    "    x=\"Production Budget:Q\",\n",
-    "    y=\"Worldwide Gross:Q\",\n",
-    "    color=\"Major Genre:N\",\n",
-    "    size=\"IMDB Rating:Q\",\n",
-    "    tooltip=[\"Title:N\", \"IMDB Rating:Q\"],\n",
-    "    column=\"MPAA Rating:O\",\n",
+    "scatter = (\n",
+    "    alt.Chart(movies)\n",
+    "    .mark_point()\n",
+    "    .encode(\n",
+    "        x=\"Production Budget:Q\",\n",
+    "        y=\"Worldwide Gross:Q\",\n",
+    "        color=\"Major Genre:N\",\n",
+    "        size=\"IMDB Rating:Q\",\n",
+    "        tooltip=[\"Title:N\", \"IMDB Rating:Q\"],\n",
+    "        column=\"MPAA Rating:O\",\n",
+    "    )\n",
     ")\n",
     "scatter"
    ]
@@ -549,15 +572,20 @@
    "source": [
     "brush = alt.selection_interval()\n",
     "\n",
-    "scatter = alt.Chart(movies).mark_point().encode(\n",
-    "    x=\"Production Budget:Q\",\n",
-    "    y=\"Worldwide Gross:Q\",\n",
-    "    color=(\n",
-    "        alt.when(brush)\n",
-    "        .then(\"Major Genre:N\")\n",
-    "        .otherwise(alt.value(\"lightgray\"))\n",
-    "    ),\n",
-    ").add_params(brush)\n",
+    "scatter = (\n",
+    "    alt.Chart(movies)\n",
+    "    .mark_point()\n",
+    "    .encode(\n",
+    "        x=\"Production Budget:Q\",\n",
+    "        y=\"Worldwide Gross:Q\",\n",
+    "        color=(\n",
+    "            alt.when(brush)\n",
+    "            .then(\"Major Genre:N\")\n",
+    "            .otherwise(alt.value(\"lightgray\"))\n",
+    "        ),\n",
+    "    )\n",
+    "    .add_params(brush)\n",
+    ")\n",
     "\n",
     "scatter"
    ]
@@ -658,10 +686,15 @@
     }
    ],
    "source": [
-    "bars = alt.Chart(movies).mark_bar().encode(\n",
-    "    x=\"mean(IMDB Rating):Q\",\n",
-    "    y=\"Major Genre:N\",\n",
-    ").transform_filter(brush)\n",
+    "bars = (\n",
+    "    alt.Chart(movies)\n",
+    "    .mark_bar()\n",
+    "    .encode(\n",
+    "        x=\"mean(IMDB Rating):Q\",\n",
+    "        y=\"Major Genre:N\",\n",
+    "    )\n",
+    "    .transform_filter(brush)\n",
+    ")\n",
     "\n",
     "scatter & bars"
    ]