done with 09 and everything

jpivarski-talks · Apr 6, 2019 · d37f0a4 · d37f0a4
1 parent a85d850
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diff --git a/09-jailbreaking-python.ipynb b/09-jailbreaking-python.ipynb
@@ -31,20 +31,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Not allowed to change it: 'bytes' object does not support item assignment\n",
-      "a = [ 72 101 108 108 111  44  32 119 111 114 108 100  33]\n",
-      "a.view('S1') = [b'H' b'e' b'l' b'l' b'o' b',' b' ' b'w' b'o' b'r' b'l' b'd' b'!']\n",
-      "hello = b'HellEVILorld!'\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Let's break Python!\n",
     "\n",
@@ -67,18 +56,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "case 1: False\n",
-      "case 2: True\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# See how evil this is:\n",
     "\n",
@@ -112,18 +92,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "a = [  2   0   0   0   0   0   0   0  32  22 161 221  72  86   0   0   1   0\n",
-      "   0   0   0   0   0   0  57  48   0   0]\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "x = 12345\n",
     "\n",
@@ -140,24 +111,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "a = [  2   0   0   0   0   0   0   0  32 226 160 221  72  86   0   0  10   0\n",
-      "   0   0   0   0   0   0  79  79 192   9  38   9 212  73 228 171 183 242\n",
-      " 166 127   0   0   0   0   0   0   0   0   0   0  72 101 121  32 116 104\n",
-      " 101 114 101  46   0]\n",
-      "\n",
-      "a[-11:]            = [ 72 101 121  32 116 104 101 114 101  46   0]\n",
-      "\n",
-      "a[-11:].tostring() = b'Hey there.\\x00'\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Now for a string.\n",
     "\n",
@@ -173,23 +129,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "ptr = <__main__.PyObject object at 0x7fa6f2b67d08>\n",
-      "\n",
-      "Before:\n",
-      "ptr.ob_refcnt = 2 sys.getrefcount(hello) = 3\n",
-      "\n",
-      "After:\n",
-      "ptr.ob_refcnt = 1002 sys.getrefcount(hello) = 1003\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# The snake eats its own tail: reading PyObject refcount without changing it.\n",
     "class PyObject(ctypes.Structure): pass\n",
@@ -221,17 +163,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "a = [-511.5 -510.5 -509.5 ...  509.5  510.5  511.5]\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Suppose you're on a supercomputer with Non-Uniform Memory Access (NUMA) and you want Numpy arrays.\n",
     "\n",
@@ -250,7 +184,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -287,17 +221,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "103.04\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# It's easy to get started with pybind11, and it uses a modern subset of C++.\n",
     "import os\n",
@@ -321,11 +247,35 @@
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
+   "cell_type": "markdown",
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "source": [
+    "#### You can do the reverse: compile Python, pass as function pointer to C\n",
+    "\n",
+    "<center><img src=\"img/writing-c-functions-in-python.png\" width=\"90%\"></center>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Numpy ufuncs are a C function protocol, overridden by compiled code\n",
+    "\n",
+    "<center><img src=\"img/creating-your-own-ufunc.png\" width=\"90%\"></center>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "<br><br><br><br>\n",
+    "\n",
+    "# Day 3 Homework\n",
+    "\n",
+    "Did you bring a project that you'd like to accelerate, rework in Numpy/awkward, or bind to C++?\n",
+    "\n",
+    "<br><br><br><br>"
+   ]
   }
  ],
  "metadata": {

diff --git a/img/creating-your-own-ufunc.png b/img/creating-your-own-ufunc.png
diff --git a/img/writing-c-functions-in-python.png b/img/writing-c-functions-in-python.png