louis lec 21 copying

5a19bbf7 · LOUIS TYRRELL OLIPHANT · d0ad2ed8 · 5a19bbf7 · 5a19bbf7 · 5a19bbf7
Commit 5a19bbf7 authored 1 month ago by LOUIS TYRRELL OLIPHANT
--- a/s25/Louis_Lecture_Notes/21_Copying/Lec_21_Copying.ipynb
+++ b/s25/Louis_Lecture_Notes/21_Copying/Lec_21_Copying.ipynb
--- a/s25/Louis_Lecture_Notes/21_Copying/Lec_21_Copying_Solution.ipynb
+++ b/s25/Louis_Lecture_Notes/21_Copying/Lec_21_Copying_Solution.ipynb
--- a/s25/Louis_Lecture_Notes/21_Copying/Lec_21_Copying_Worksheet.ipynb
+++ b/s25/Louis_Lecture_Notes/21_Copying/Lec_21_Copying_Worksheet.ipynb
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "193622e7",
+   "metadata": {},
+   "source": [
+    "**Q2:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=x%20%3D%20%5B1,%202,%203%5D%0Ay%20%3D%20%5B1,%202,%203%5D%0Az%20%3D%20x%0Az.append%284%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "131b9746",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "x = [1, 2, 3]\n",
+    "y = [1, 2, 3]\n",
+    "z = x\n",
+    "z.append(4)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f578b492",
+   "metadata": {},
+   "source": [
+    "**Q3:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=nums1%20%3D%20%5B1,2%5D%0Anums2%20%3D%20nums1%0Ax%20%3D%20nums2.pop%281%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6d6a052b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "nums1 = [1,2]\n",
+    "nums2 = nums1\n",
+    "x = nums2.pop(1)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "0abc64c0",
+   "metadata": {},
+   "source": [
+    "**Q4:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=x%20%3D%20%5B1,%202%5D%0Ay%20%3D%20%5B3%5D%0Az%20%3D%20x%20%2B%20y%0Ay.append%284%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "373369b9",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "x = [1, 2]\n",
+    "y = [3]\n",
+    "z = x + y\n",
+    "y.append(4)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a3eb791e",
+   "metadata": {},
+   "source": [
+    "**Q5:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=people%20%3D%20%7B%22alice%22%3A30,%20%22bob%22%3A25%7D%0Ax%20%3D%20people%0Ay%20%3D%20people%5B%22bob%22%5D%0Ax%5B%22alice%22%5D%20%3D%2031%0Ay%20%3D%2026&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ab703ab8",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "people = {\"alice\":30, \"bob\":25}\n",
+    "x = people\n",
+    "y = people[\"bob\"]\n",
+    "x[\"alice\"] = 31\n",
+    "y = 26"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "6dd6f676",
+   "metadata": {},
+   "source": [
+    "**Q6:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=def%20f%28items%29%3A%0A%20%20%20%20return%20items.pop%280%29%0Anums%20%3D%20%5B1,2,3%5D%0Anums.append%28f%28nums%29%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "81a7d6d6",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def f(items):\n",
+    "    return items.pop(0)\n",
+    "nums = [1,2,3]\n",
+    "nums.append(f(nums))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5cea38e0",
+   "metadata": {},
+   "source": [
+    "**Q7 (As Written):** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ax%20%3D%20%5B2,1%5D%0Ay%20%3D%20copy.copy%28y%29%0Ay.sort%28%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ed06d8b5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import copy\n",
+    "x = [2,1]\n",
+    "y = copy.copy(y)\n",
+    "y.sort()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "1499a535",
+   "metadata": {},
+   "source": [
+    "**Q7 (As Fixed):** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ax%20%3D%20%5B2,1%5D%0Ay%20%3D%20copy.copy%28x%29%0Ay.sort%28%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "25a014f1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import copy\n",
+    "x = [2,1]\n",
+    "y = copy.copy(x)\n",
+    "y.sort()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "88899380",
+   "metadata": {},
+   "source": [
+    "**Q8:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Adef%20biggest%28items%29%3A%0A%20%20%20%20items%20%3D%20copy.copy%28items%29%0A%20%20%20%20items.sort%28%29%0A%20%20%20%20return%20items%5B-1%5D%0Anums%20%3D%20%5B3,9,6%5D%0Ax%20%3D%20biggest%28nums%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "a03f0f27",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import copy\n",
+    "def biggest(items):\n",
+    "    items = copy.copy(items)\n",
+    "    items.sort()\n",
+    "    return items[-1]\n",
+    "nums = [3,9,6]\n",
+    "x = biggest(nums)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "60f15a79",
+   "metadata": {},
+   "source": [
+    "**Q9:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ateam1%20%3D%20%5B%0A%20%20%7B%22name%22%3A%22A%22,%20%22age%22%3A7%7D%0A%5D%0Ateam2%20%3D%20copy.copy%28team1%29%0Ateam2.append%28%0A%20%20%7B%22name%22%3A%22B%22,%20%22age%22%3A9%7D%0A%29%0Ateam2%5B0%5D%5B%22age%22%5D%20%3D%208%0Ax%20%3D%20team1%5B0%5D%5B%22age%22%5D&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ba913d5b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import copy\n",
+    "team1 = [\n",
+    "  {\"name\":\"A\", \"age\":7}\n",
+    "]\n",
+    "team2 = copy.copy(team1)\n",
+    "team2.append(\n",
+    "  {\"name\":\"B\", \"age\":9}\n",
+    ")\n",
+    "team2[0][\"age\"] = 8\n",
+    "x = team1[0][\"age\"]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9e3d7dd3",
+   "metadata": {},
+   "source": [
+    "**Q10:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ateam1%20%3D%20%5B%0A%20%20%7B%22name%22%3A%22A%22,%20%22age%22%3A7%7D%0A%5D%0Ateam2%20%3D%20copy.deepcopy%28team1%29%0Ateam2.append%28%0A%20%20%7B%22name%22%3A%22B%22,%20%22age%22%3A9%7D%0A%29%0Ateam2%5B0%5D%5B%22age%22%5D%20%3D%208%0Ax%20%3D%20team1%5B0%5D%5B%22age%22%5D&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1c49cbcb",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import copy\n",
+    "team1 = [\n",
+    "  {\"name\":\"A\", \"age\":7}\n",
+    "]\n",
+    "team2 = copy.deepcopy(team1)\n",
+    "team2.append(\n",
+    "  {\"name\":\"B\", \"age\":9}\n",
+    ")\n",
+    "team2[0][\"age\"] = 8\n",
+    "x = team1[0][\"age\"]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "30953821",
+   "metadata": {},
+   "source": [
+    "**Q11:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Aorig%20%3D%20%5B1,%5B2,%5B3,4%5D%5D%5D%0Ax%20%3D%20orig%0Ay%20%3D%20copy.copy%28orig%29%0Az%20%3D%20copy.deepcopy%28orig%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "e67ede97",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import copy\n",
+    "orig = [1,[2,[3,4]]]\n",
+    "x = orig\n",
+    "y = copy.copy(orig)\n",
+    "z = copy.deepcopy(orig)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.12"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
+%% Cell type:markdown id:193622e7 tags:
+**Q2:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=x%20%3D%20%5B1,%202,%203%5D%0Ay%20%3D%20%5B1,%202,%203%5D%0Az%20%3D%20x%0Az.append%284%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:131b9746 tags:
+``` python
+x = [1, 2, 3]
+y = [1, 2, 3]
+z = x
+z.append(4)
+```
+%% Cell type:markdown id:f578b492 tags:
+**Q3:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=nums1%20%3D%20%5B1,2%5D%0Anums2%20%3D%20nums1%0Ax%20%3D%20nums2.pop%281%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:6d6a052b tags:
+``` python
+nums1 = [1,2]
+nums2 = nums1
+x = nums2.pop(1)
+```
+%% Cell type:markdown id:0abc64c0 tags:
+**Q4:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=x%20%3D%20%5B1,%202%5D%0Ay%20%3D%20%5B3%5D%0Az%20%3D%20x%20%2B%20y%0Ay.append%284%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:373369b9 tags:
+``` python
+x = [1, 2]
+y = [3]
+z = x + y
+y.append(4)
+```
+%% Cell type:markdown id:a3eb791e tags:
+**Q5:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=people%20%3D%20%7B%22alice%22%3A30,%20%22bob%22%3A25%7D%0Ax%20%3D%20people%0Ay%20%3D%20people%5B%22bob%22%5D%0Ax%5B%22alice%22%5D%20%3D%2031%0Ay%20%3D%2026&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:ab703ab8 tags:
+``` python
+people = {"alice":30, "bob":25}
+x = people
+y = people["bob"]
+x["alice"] = 31
+y = 26
+```
+%% Cell type:markdown id:6dd6f676 tags:
+**Q6:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=def%20f%28items%29%3A%0A%20%20%20%20return%20items.pop%280%29%0Anums%20%3D%20%5B1,2,3%5D%0Anums.append%28f%28nums%29%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:81a7d6d6 tags:
+``` python
+def f(items):
+    return items.pop(0)
+nums = [1,2,3]
+nums.append(f(nums))
+```
+%% Cell type:markdown id:5cea38e0 tags:
+**Q7 (As Written):** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ax%20%3D%20%5B2,1%5D%0Ay%20%3D%20copy.copy%28y%29%0Ay.sort%28%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:ed06d8b5 tags:
+``` python
+import copy
+x = [2,1]
+y = copy.copy(y)
+y.sort()
+```
+%% Cell type:markdown id:1499a535 tags:
+**Q7 (As Fixed):** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ax%20%3D%20%5B2,1%5D%0Ay%20%3D%20copy.copy%28x%29%0Ay.sort%28%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:25a014f1 tags:
+``` python
+import copy
+x = [2,1]
+y = copy.copy(x)
+y.sort()
+```
+%% Cell type:markdown id:88899380 tags:
+**Q8:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Adef%20biggest%28items%29%3A%0A%20%20%20%20items%20%3D%20copy.copy%28items%29%0A%20%20%20%20items.sort%28%29%0A%20%20%20%20return%20items%5B-1%5D%0Anums%20%3D%20%5B3,9,6%5D%0Ax%20%3D%20biggest%28nums%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:a03f0f27 tags:
+``` python
+import copy
+def biggest(items):
+    items = copy.copy(items)
+    items.sort()
+    return items[-1]
+nums = [3,9,6]
+x = biggest(nums)
+```
+%% Cell type:markdown id:60f15a79 tags:
+**Q9:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ateam1%20%3D%20%5B%0A%20%20%7B%22name%22%3A%22A%22,%20%22age%22%3A7%7D%0A%5D%0Ateam2%20%3D%20copy.copy%28team1%29%0Ateam2.append%28%0A%20%20%7B%22name%22%3A%22B%22,%20%22age%22%3A9%7D%0A%29%0Ateam2%5B0%5D%5B%22age%22%5D%20%3D%208%0Ax%20%3D%20team1%5B0%5D%5B%22age%22%5D&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:ba913d5b tags:
+``` python
+import copy
+team1 = [
+  {"name":"A", "age":7}
+]
+team2 = copy.copy(team1)
+team2.append(
+  {"name":"B", "age":9}
+)
+team2[0]["age"] = 8
+x = team1[0]["age"]
+```
+%% Cell type:markdown id:9e3d7dd3 tags:
+**Q10:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Ateam1%20%3D%20%5B%0A%20%20%7B%22name%22%3A%22A%22,%20%22age%22%3A7%7D%0A%5D%0Ateam2%20%3D%20copy.deepcopy%28team1%29%0Ateam2.append%28%0A%20%20%7B%22name%22%3A%22B%22,%20%22age%22%3A9%7D%0A%29%0Ateam2%5B0%5D%5B%22age%22%5D%20%3D%208%0Ax%20%3D%20team1%5B0%5D%5B%22age%22%5D&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:1c49cbcb tags:
+``` python
+import copy
+team1 = [
+  {"name":"A", "age":7}
+]
+team2 = copy.deepcopy(team1)
+team2.append(
+  {"name":"B", "age":9}
+)
+team2[0]["age"] = 8
+x = team1[0]["age"]
+```
+%% Cell type:markdown id:30953821 tags:
+**Q11:** [PythonTutor Link](https://pythontutor.com/visualize.html#code=import%20copy%0Aorig%20%3D%20%5B1,%5B2,%5B3,4%5D%5D%5D%0Ax%20%3D%20orig%0Ay%20%3D%20copy.copy%28orig%29%0Az%20%3D%20copy.deepcopy%28orig%29&cumulative=false&curInstr=0&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=3&rawInputLstJSON=%5B%5D&textReferences=false)
+%% Cell type:code id:e67ede97 tags:
+``` python
+import copy
+orig = [1,[2,[3,4]]]
+x = orig
+y = copy.copy(orig)
+z = copy.deepcopy(orig)
+```