Sirius branch

2022/python_workshop/notebooks/02_basic_data_types.ipynb

@@ -80,9 +80,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "x_int = 10, y_int = 10\n",
+      "type of x_int: <class 'int'>\n",
+      "type of y_int: <class 'int'>\n",
+      "x_initial_identity = 1716000483920\n",
+      "y_initial_identity = 1716000483920\n",
+      "are they the same? True\n",
+      "x_int is y_int? True\n",
+      "does x_int have the same value as y_int? True\n",
+      "assigning new value to x\n",
+      "x_int = 11, y_int = 10\n",
+      "does x_int have the same value as y_int? False\n",
+      "x_initial_identity; 1716000483920\n",
+      "x_final_identity: 1716000483952\n"
+     ]
+    }
+   ],
    "source": [
     "# assign x a value and then assign x to y\n",
     "x_int = 10\n",
@@ -154,17 +174,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Este ok\n",
+      "Si aici este ok\n"
+     ]
+    }
+   ],
    "source": [
     "# let's try to divide by 0\n",
     "# we will use a try-except block\n",
     "\n",
     "try:\n",
-    "    x = 1 / 0\n",
+    "    x = 1\n",
     "except ZeroDivisionError:\n",
-    "    print(\"you can't divide by zero!\")"
+    "    print(\"you can't divide by zero!\")\n",
+    "    raise ZeroDivisionError\n",
+    "else:\n",
+    "    print('Este ok')\n",
+    "finally:\n",
+    "    print(\"Si aici este ok\")\n"
    ]
   },
   {
@@ -265,12 +299,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 15,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Peter Pan is a terrible boxer.\n",
+      "Whenever he throws a punch, it Neverlands\n",
+      "Neverlands\n",
+      "\n",
+      "I was wondering why the frisbee kept getting bigger and bigger.\n",
+      "But then it hit me.\n",
+      "                Ba-dum tss.\n",
+      "\n"
+     ]
+    }
+   ],
    "source": [
     "one_liner = \"Peter Pan is a terrible boxer.\\nWhenever he throws a punch, it Neverlands\"\n",
     "print(one_liner)\n",
+    "new_str = one_liner.split(\" \")\n",
+    "print(new_str[-1])\n",
     "\n",
     "multi_liner = \"\"\"\n",
     "I was wondering why the frisbee kept getting bigger and bigger.\n",
@@ -282,9 +333,18 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 12,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "['']\n",
+      "Ellipsis\n"
+     ]
+    }
+   ],
    "source": [
     "# get the last word of that one-liner\n",
     "\n",
@@ -307,24 +367,55 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 19,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "SELECT * FROM my_table WHERE date >= '2022-07-01 20:22:07';\n",
+      "\n",
+      "\n",
+      "SELECT * FROM my_table WHERE date >= '2022-07-01 20:22:07';\n",
+      "\n"
+     ]
+    }
+   ],
    "source": [
     "# replace the wildcard in the string with a value\n",
     "statement = \"\"\"\n",
+    "SELECT * FROM my_table WHERE date >= {};\n",
+    "\"\"\"\n",
+    "statement_v2 = \"\"\"\n",
     "SELECT * FROM my_table WHERE date >= $$start_date$$;\n",
     "\"\"\"\n",
     "start_date = \"'2022-07-01 20:22:07'\"\n",
-    "replaced_statement = ...\n",
-    "print(replaced_statement)"
+    "replaced_statement = statement.format(start_date)\n",
+    "replaced_statement_v2 = statement_v2.replace(\"$$start_date$$\", start_date)\n",
+    "\n",
+    "print(replaced_statement)\n",
+    "print(replaced_statement_v2)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 22,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "This is a string that needs to be split,\n",
+      "based in the comma character,\n",
+      "so it should result in three strings.\n",
+      "\n"
+     ]
+    }
+   ],
    "source": [
     "# split the following string based on the comma\n",
     "s = \"\"\"\n",
@@ -333,7 +424,7 @@
     "so it should result in three strings.\n",
     "\"\"\"\n",
     "\n",
-    "split_strings = ...\n",
+    "split_strings = s.strip('strings')\n",
     "print(split_strings)"
    ]
   },
@@ -359,9 +450,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0\n",
+      "x evaluated to False\n",
+      "False\n",
+      "True\n",
+      "True\n",
+      "False\n"
+     ]
+    }
+   ],
    "source": [
     "# an empty (None) variable evaluates to False\n",
     "x = int()\n",
@@ -370,19 +474,31 @@
     "    print('x evaluated to False')\n",
     "\n",
     "# what does 0 evaluate to?\n",
+    "zero = bool(0)\n",
+    "print(zero)\n",
     "\n",
     "# what does 1 evaluate to?\n",
-    "\n",
+    "one = bool(1)\n",
+    "print(one)\n",
     "# what does a random string evaluate to?\n",
-    "\n",
+    "string = bool('fjghggf')\n",
+    "print(string)\n",
     "# what does an empty string evaluate to?\n",
-    "\n"
+    "empty_string = bool('')\n",
+    "print(empty_string)"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.10.5 64-bit",
+   "display_name": "Python 3.9.12 ('base')",
    "language": "python",
    "name": "python3"
   },
@@ -396,12 +512,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.5"
+   "version": "3.9.12"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "aee8b7b246df8f9039afb4144a1f6fd8d2ca17a180786b69acc140d282b71a49"
+    "hash": "d31b83e9610685068a0fe73b54051d44dc1110027bef1c52e64b671e72faac45"
    }
   }
  },