updates

Author: diptangsu

10-sequences.ipynb

@@ -140,7 +140,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 1,
    "metadata": {
     "cell_style": "split",
     "slideshow": {
@@ -160,9 +160,9 @@
    ],
    "source": [
     "a = [12, 32, 4, 39, 24]\n",
-    "print('a[-1] =', a[-1])\n",
+    "print('a[-1] =', a[-1])  # a[len(a) - 1]\n",
     "print('a[2] =', a[2])\n",
-    "print('a[-2] =', a[-2])"
+    "print('a[-2] =', a[-2])  # a[len(a) - 2]"
    ]
   },
   {
@@ -318,6 +318,17 @@
     "    print(a[i])"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### Traversing a list in a Pythonic way "
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 7,
@@ -340,7 +351,6 @@
     }
    ],
    "source": [
-    "# Traversing a list in a Pythonic way \n",
     "for value in a:\n",
     "    print(value)"
    ]
@@ -364,7 +374,7 @@
     }
    },
    "source": [
-    "#### append will add an element to the end of the list"
+    "#### `append` will add an element to the end of the list"
    ]
   },
   {
@@ -548,7 +558,10 @@
     }
    },
    "source": [
-    "#### insert will insert an element at a particular index in the list"
+    "#### insert will insert an element at a particular index in the list\n",
+    "```py\n",
+    "list.insert(index, object)\n",
+    "```"
    ]
   },
   {
@@ -739,7 +752,8 @@
     }
    },
    "source": [
-    "### Sort a list"
+    "### Sort a list\n",
+    "The built-in sort function uses an algorithm known as [Tim Sort](https://en.wikipedia.org/wiki/Timsort)."
    ]
   },
   {
@@ -972,6 +986,8 @@
     "```py\n",
     "list.remove(value)  # removes value from the list\n",
     "removed_value = list.pop(index)  # removes value at index and returns it\n",
+    "last_value = list.pop()  # removes the last value and returns it\n",
+    "del list[index]  # deletes value from list at index\n",
     "```"
    ]
   },
@@ -1086,7 +1102,8 @@
     "## tuple\n",
     "- A list of comma separated values enclosed within parentheses.\n",
     "- heterogeneous (it can have values of any type)\n",
-    "- immutable"
+    "- immutable\n",
+    "- supports negative indexing"
    ]
   },
   {
@@ -1582,7 +1599,7 @@
     }
    },
    "source": [
-    "### Count number of a particular substring"
+    "### Count number of occurrences of a particular substring"
    ]
   },
   {
@@ -1807,6 +1824,56 @@
     "***"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "### A few extras"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "C\n",
+      "88\n"
+     ]
+    }
+   ],
+   "source": [
+    "ascii_value = 67\n",
+    "character = chr(ascii_value)\n",
+    "print(character)\n",
+    "\n",
+    "character = 'X'\n",
+    "ascii_value = ord(character)\n",
+    "print(ascii_value)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "skip"
+    }
+   },
+   "source": [
+    "***"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {

16-lists-2.ipynb

@@ -0,0 +1,39 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### 2D lists and more"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "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": "3.7.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}