Add ipynb format check (#1439)

* Update test_qlib_from_source.yml

* add ipynb format check to workflow

* test ipynb CI

* modify nbqa check path

* add pylint flake8 mypy check to ipynb

* check ipynb with black and pylint

* reformat .ipynb files

* format line length

nbqa black . -l 120

* update nbqa .ipynb format CI

* format old ipynb files

* add nbconvert check to CI

* adjust CI order to avoid repeating download data

examples/workflow_by_code.ipynb

@@ -38,7 +38,7 @@
     "    # install qlib\n",
     "    ! pip install --upgrade numpy\n",
     "    ! pip install pyqlib\n",
-    "    if 'google.colab' in sys.modules:\n",
+    "    if \"google.colab\" in sys.modules:\n",
     "        # The Google colab environment is a little outdated. We have to downgrade the pyyaml to make it compatible with other packages\n",
     "        ! pip install pyyaml==5.4.1\n",
     "    # reload\n",
@@ -50,7 +50,8 @@
     "    scripts_dir = Path(\"~/tmp/qlib_code/scripts\").expanduser().resolve()\n",
     "    scripts_dir.mkdir(parents=True, exist_ok=True)\n",
     "    import requests\n",
-    "    with requests.get(\"https://raw.githubusercontent.com/microsoft/qlib/main/scripts/get_data.py\") as resp:\n",
+    "\n",
+    "    with requests.get(\"https://raw.githubusercontent.com/microsoft/qlib/main/scripts/get_data.py\", timeout=10) as resp:\n",
     "        with open(scripts_dir.joinpath(\"get_data.py\"), \"wb\") as fp:\n",
     "            fp.write(resp.content)"
    ]
@@ -61,14 +62,13 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "\n",
     "import qlib\n",
     "import pandas as pd\n",
     "from qlib.constant import REG_CN\n",
     "from qlib.utils import exists_qlib_data, init_instance_by_config\n",
     "from qlib.workflow import R\n",
     "from qlib.workflow.record_temp import SignalRecord, PortAnaRecord\n",
-    "from qlib.utils import flatten_dict\n"
+    "from qlib.utils import flatten_dict"
    ]
   },
   {
@@ -86,6 +86,7 @@
     "    print(f\"Qlib data is not found in {provider_uri}\")\n",
     "    sys.path.append(str(scripts_dir))\n",
     "    from get_data import GetData\n",
+    "\n",
     "    GetData().qlib_data(target_dir=provider_uri, region=REG_CN)\n",
     "qlib.init(provider_uri=provider_uri, region=REG_CN)"
    ]
@@ -169,7 +170,7 @@
     "    R.log_params(**flatten_dict(task))\n",
     "    model.fit(dataset)\n",
     "    R.save_objects(trained_model=model)\n",
-    "    rid = R.get_recorder().id\n"
+    "    rid = R.get_recorder().id"
    ]
   },
   {
@@ -238,7 +239,7 @@
     "\n",
     "    # backtest & analysis\n",
     "    par = PortAnaRecord(recorder, port_analysis_config, \"day\")\n",
-    "    par.generate()\n"
+    "    par.generate()"
    ]
   },
   {
@@ -256,6 +257,7 @@
    "source": [
     "from qlib.contrib.report import analysis_model, analysis_position\n",
     "from qlib.data import D\n",
+    "\n",
     "recorder = R.get_recorder(recorder_id=ba_rid, experiment_name=\"backtest_analysis\")\n",
     "print(recorder)\n",
     "pred_df = recorder.load_object(\"pred.pkl\")\n",
@@ -317,7 +319,7 @@
    "outputs": [],
    "source": [
     "label_df = dataset.prepare(\"test\", col_set=\"label\")\n",
-    "label_df.columns = ['label']"
+    "label_df.columns = [\"label\"]"
    ]
   },
   {