Added example for python notebook

Author: timeu

Lecture-2-Introduction-to-Python-Programming.ipynb

@@ -60,14 +60,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "zsh:1: no matches found: scripts/hello-world*.py\r\n"
+      "scripts/hello-world-in-swedish.py  scripts/hello-world.py\r\n"
      ]
     }
    ],
@@ -77,14 +77,16 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "cat: scripts/hello-world.py: No such file or directory\r\n"
+      "#!/usr/bin/env python\r\n",
+      "\r\n",
+      "print(\"Hello world!\")\r\n"
      ]
     }
    ],
@@ -94,14 +96,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "python: can't open file 'scripts/hello-world.py': [Errno 2] No such file or directory\r\n"
+      "Hello world!\r\n"
      ]
     }
    ],
@@ -129,14 +131,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "cat: scripts/hello-world-in-swedish.py: No such file or directory\r\n"
+      "#!/usr/bin/env python\r\n",
+      "# -*- coding: UTF-8 -*-\r\n",
+      "\r\n",
+      "print(\"Hej världen!\")\r\n"
      ]
     }
    ],
@@ -146,14 +151,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "python: can't open file 'scripts/hello-world-in-swedish.py': [Errno 2] No such file or directory\r\n"
+      "Hej världen!\r\n"
      ]
     }
    ],
@@ -3573,6 +3578,131 @@
     "* http://www.greenteapress.com/thinkpython/ - A free book on Python programming.\n",
     "* [Python Essential Reference](http://www.amazon.com/Python-Essential-Reference-4th-Edition/dp/0672329786) - A good reference book on Python programming."
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Exercise 1"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "<div class=\"alert alert-success\">\n",
+    "Implement the function <code>print_routine</code> that iterates over the `days_of_the_week` list and prints the routine in following format:\n",
+    "<pre>\n",
+    "Today is Sunday\n",
+    "   Sleep in\n",
+    "Today is Monday\n",
+    "   Go to work\n",
+    "Today is Tuesday\n",
+    "   Go to work\n",
+    "Today is Wednesday\n",
+    "   Go to work\n",
+    "Today is Thursday\n",
+    "   Go to work\n",
+    "Today is Friday\n",
+    "   Go to work\n",
+    "Today is Saturday\n",
+    "   Do chores\n",
+    "</pre>\n",
+    "</div>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "days_of_the_week = [\"Sunday\",\"Monday\",\"Tuesday\",\"Wednesday\",\"Thursday\",\"Friday\",\"Saturday\"]\n",
+    "\n",
+    "def print_routine():\n",
+    "    \"\"\"Print\n",
+    "    \n",
+    "    \"\"\"\n",
+    "    ### BEGIN SOLUTION\n",
+    "    raise NotImplementedError()\n",
+    "    ### END SOLUTION"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "print_routine()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "---\n",
+    "## Excercise: Fibonacci Sequence\n",
+    "\n",
+    "The Fibonacci sequence is a sequence in math that starts with 0 and 1, and then each successive entry is the sum of the previous two. Thus, the sequence goes *0,1,1,2,3,5,8,13,21,34,55,89,...*\n",
+    "\n",
+    "A very common exercise in programming books is to compute the Fibonacci sequence up to some number *n*."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "<div class=\"alert alert-success\">\n",
+    "Implement the function <code>fibonacci</code> Return the Fibonacci sequence of length *sequence_length*\n",
+    "</div>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def fibonacci(sequence_length):\n",
+    "    \"\"\"Returns the fibonacci sequence for sequence_length\n",
+    "    \n",
+    "    * If the sequence_length is invalid (<1) raise a ValueError\n",
+    "    \n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    sequence_length : number\n",
+    "        The length of the fibonacci sequence\n",
+    "        \n",
+    "    Returns\n",
+    "    -------\n",
+    "    fibonacci sequence: list\n",
+    "    \n",
+    "    \"\"\"\n",
+    "    ### BEGIN SOLUTION\n",
+    "    raise NotImplementedError()\n",
+    "    ### END SOLUTION(name):"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from nose.tools import assert_raises\n",
+    "assert_raises(ValueError, fibonacci, 0)\n",
+    "assert fibonacci(2) == [0,1]\n",
+    "assert fibonacci(12) == [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]\n",
+    "print(\"success\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {

scripts/hello-world-in-swedish.py

@@ -0,0 +1,4 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+
+print("Hej världen!")

scripts/hello-world.py

@@ -0,0 +1,3 @@
+#!/usr/bin/env python
+
+print("Hello world!")