From 19c70b79243ad46e299657248314d384641a5fb7 Mon Sep 17 00:00:00 2001
From: Arianna <arianna.saba.20@ucl.ac.uk>
Date: Mon, 26 Oct 2020 18:51:57 +0000
Subject: [PATCH 1/2] Added the requested changes to the file group.py

---
 group.py | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 70 insertions(+), 3 deletions(-)

diff --git a/group.py b/group.py
index e2ec347..4f636a6 100644
--- a/group.py
+++ b/group.py
@@ -1,5 +1,72 @@
-"""An example of how to represent a group of acquaintances in Python."""
+group = {
+    "Jill": {
+        "age": 26,
+        "job": "biologist",
+        "relations": {
+            "Zalika": "friend",
+            "John": "partner"
+        }
+    },
+    "Zalika": {
+        "age": 28,
+        "job": "artist",
+        "relations": {
+            "Jill": "friend"
+        }
+    },
+    "John": {
+        "age": 27,
+        "job": "writer",
+        "relations": {
+            "Jill": "partner"
+        }
+    },
+    "Nash": {
+        "age": 34,
+        "job": "chef",
+        "relations": {
+            "John": "cousin",
+            "Zalika": "landlord"
+        }
+    }
+}
+
+
+#the maximum age of people in the group
+import numpy as np
+
+ages=[]
+
+for person in group:
+    ages.append(group[person]["age"])
+print('maximum age of people in the group is', np.max(ages))
+
+
+
+#the average (mean) number of relations among members of the group
+relation = []
+for person in group:
+    #print(group[person]["relations"])
+    relation.append(len(group[person]["relations"].keys()))
+print('average number of relations among members of the group is', np.mean(relation))
+
+
+#the maximum age of people in the group that have at least one relation
+age_n = []
+for person in group:
+    if len(group[person]["relations"].keys()) >= 1:
+        age_n.append(group[person]["age"])
+print('maximum age of people in the group that have at least one relation is', np.max(age_n))
+
+
+
+#[more advanced] the maximum age of people in the group that have at least one friend
+Ages = []
+for person in group:
+    if "friend" in group[person]["relations"].values():
+        Ages.append(group[person]["age"])
+                
+print('The maximum age of people in the group that have at least one friend is', np.max(Ages))
+
 
-# Your code to go here...
 
-my_group =

From a984bf6277b84f1c99839af072bbdb10e84ec4e4 Mon Sep 17 00:00:00 2001
From: Arianna <arianna.saba.20@ucl.ac.uk>
Date: Wed, 28 Oct 2020 15:34:24 +0000
Subject: [PATCH 2/2] Reading and writing structured data files exercise

---
 group.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/group.py b/group.py
index 4f636a6..6d9fd63 100644
--- a/group.py
+++ b/group.py
@@ -70,3 +70,15 @@
 
 
 
+
+import json
+
+#write file
+with open('group_file.json', 'w') as json_file:
+	json.dumps(group, json_file, indent=4)
+
+#read file
+with open('group_file.json', 'r') as json_file:
+	group_data = json_file.read()
+
+