Merge pull request darkprinx#47 from sophiexsun/master

updated a solution to question 18

Author: darkprinx

notebooks/Day_06.ipynb

@@ -189,6 +189,45 @@
     "print(\",\".join(lst))"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "please give me your passwords: ABd1234@1,a F1#,2w3E*,2We3345,Some@124\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "ABd1234@1, Some@124\n"
+     ]
+    }
+   ],
+   "source": [
+    "'''Solution by sophiexsun'''\n",
+    "\n",
+    "import re\n",
+    "\n",
+    "lower = re.compile(r'[a-z]')\n",
+    "upper = re.compile(r'[A-Z]')\n",
+    "digi = re.compile(r'[0-9]')\n",
+    "schar = re.compile(r'[$#@]')\n",
+    "\n",
+    "def password_checker(password):\n",
+    "  if lower.search(password) and upper.search(password) and digi.search(password) and schar.search(password) and 6 <= len(password) <= 12:\n",
+    "    return password\n",
+    "\n",
+    "test_pwd = input(\"please give me your passwords:\").split(',')\n",
+    "\n",
+    "print(', '.join(filter(password_checker, test_pwd)))"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -276,7 +315,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.6"
+   "version": "3.8.5"
   }
  },
  "nbformat": 4,