Update zip example for lesson 03

Author: sozykin

03/03_zip.ipynb

@@ -14,7 +14,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -113,7 +113,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -122,16 +122,32 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "['03_exceptions.ipynb',\n",
+       " '03_files_open.ipynb',\n",
+       " '03_file_read_write.ipynb',\n",
+       " '03_os.ipynb',\n",
+       " '03_pathlib.ipynb',\n",
+       " '03_zip.ipynb']"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "file_names"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -152,20 +168,19 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [],
    "source": [
     "with zipfile.ZipFile('notebooks_compressed.zip', 'w', \n",
-    "                     compression=zipfile.ZIP_DEFLATED,\n",
-    "                     compresslevel=9) as zipobj:\n",
+    "                     compression=zipfile.ZIP_DEFLATED) as zipobj:\n",
     "    for name in file_names:\n",
     "        zipobj.write(name)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [],
    "source": [