From 4a0678fbbf82e6367780a927aaac63143e467a24 Mon Sep 17 00:00:00 2001
From: Fridolin Glatter <glatter@iiasa.ac.at>
Date: Thu, 12 Dec 2024 14:33:06 +0100
Subject: [PATCH] Resolve further pandas FutureWarnings

---
 .../westeros_historical_new_capacity.ipynb    | 22 +++++++++++++------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/tutorial/westeros/westeros_historical_new_capacity.ipynb b/tutorial/westeros/westeros_historical_new_capacity.ipynb
index 0bce120ad..1fcfddd82 100644
--- a/tutorial/westeros/westeros_historical_new_capacity.ipynb
+++ b/tutorial/westeros/westeros_historical_new_capacity.ipynb
@@ -279,7 +279,7 @@
     "# We will hence start by retrieving the demand in the `firstmodelyear`,\n",
     "# and assume this also applies for historic time-periods.\n",
     "demand_of_firstmodelyear = float(\n",
-    "    scenario.par(\"demand\", filters={\"year\": scenario.firstmodelyear})[\"value\"]\n",
+    "    scenario.par(\"demand\", filters={\"year\": scenario.firstmodelyear})[\"value\"].iloc[0]\n",
     ")\n",
     "print(f\"The demand of the `firstmodelyear` is {demand_of_firstmodelyear} GWa.\")"
    ]
@@ -300,7 +300,7 @@
     "            \"year_act\": scenario.firstmodelyear,\n",
     "            \"technology\": \"grid\",\n",
     "        },\n",
-    "    )[\"value\"]\n",
+    "    )[\"value\"].iloc[0]\n",
     ")\n",
     "print(f\"Grid efficiency is {grid_eff}.\")\n",
     "demand_of_firstmodelyear /= grid_eff"
@@ -313,7 +313,7 @@
    "outputs": [],
    "source": [
     "duration_period = float(\n",
-    "    scenario.par(\"duration_period\", filters={\"year\": history})[\"value\"]\n",
+    "    scenario.par(\"duration_period\", filters={\"year\": history})[\"value\"].iloc[0]\n",
     ")\n",
     "print(f\"The duration of the period is {duration_period} years.\")\n",
     "historical_new_capacity = demand_of_firstmodelyear / duration_period"
@@ -844,12 +844,16 @@
     "\n",
     "# Retrieve `\"historical_new_capacity\"`\n",
     "value = float(\n",
-    "    scenario2.par(\"historical_new_capacity\", filters={\"technology\": \"coal_ppl\"}).value\n",
+    "    scenario2.par(\n",
+    "        \"historical_new_capacity\", filters={\"technology\": \"coal_ppl\"}\n",
+    "    ).value.iloc[0]\n",
     ")\n",
     "\n",
     "# Retrieve `\"duration_period\"` for the year 700\n",
     "duration_period = float(\n",
-    "    scenario.par(\"duration_period\", filters={\"year\": scenario.firstmodelyear})[\"value\"]\n",
+    "    scenario.par(\"duration_period\", filters={\"year\": scenario.firstmodelyear})[\n",
+    "        \"value\"\n",
+    "    ].iloc[0]\n",
     ")\n",
     "\n",
     "value *= duration_period\n",
@@ -976,12 +980,16 @@
    "source": [
     "# Retrieve `historical_new_capacity`\n",
     "value = float(\n",
-    "    scenario2.par(\"historical_new_capacity\", filters={\"technology\": \"coal_ppl\"}).value\n",
+    "    scenario2.par(\n",
+    "        \"historical_new_capacity\", filters={\"technology\": \"coal_ppl\"}\n",
+    "    ).value.iloc[0]\n",
     ")\n",
     "\n",
     "# Retrieve `duration_period` for the year 700\n",
     "duration_period = float(\n",
-    "    scenario.par(\"duration_period\", filters={\"year\": scenario.firstmodelyear})[\"value\"]\n",
+    "    scenario.par(\"duration_period\", filters={\"year\": scenario.firstmodelyear})[\n",
+    "        \"value\"\n",
+    "    ].iloc[0]\n",
     ")\n",
     "\n",
     "value *= duration_period\n",