Replaced !pip calls with %pip magic command. (#604)

Closes #603.

notebook/automl_classification.ipynb

@@ -38,10 +38,10 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!pip install flaml[notebook];\n",
+    "%pip install flaml[notebook]\n",
     "# from v0.6.6, catboost is made an optional dependency to build conda package.\n",
     "# to install catboost without installing the notebook option, you can run:\n",
-    "# !pip install flaml[catboost]"
+    "# %pip install flaml[catboost]"
    ]
   },
   {

notebook/automl_lightgbm.ipynb

@@ -39,7 +39,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!pip install flaml[notebook];"
+    "%pip install flaml[notebook]"
    ]
   },
   {
@@ -569,7 +569,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# !pip install optuna==2.8.0;"
+    "# %pip install optuna==2.8.0"
    ]
   },
   {

notebook/automl_nlp.ipynb

@@ -192,7 +192,7 @@
     }
    ],
    "source": [
-    "!pip install flaml[nlp,ray,notebook,blendsearch];"
+    "%pip install flaml[nlp,ray,notebook,blendsearch]"
    ]
   },
   {

notebook/automl_xgboost.ipynb

@@ -39,7 +39,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!pip install flaml[notebook];"
+    "%pip install flaml[notebook]"
    ]
   },
   {

notebook/autovw.ipynb

@@ -31,7 +31,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!pip install flaml[notebook,vw];"
+    "%pip install flaml[notebook,vw]"
    ]
   },
   {

notebook/integrate_azureml.ipynb

@@ -39,7 +39,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!pip install flaml[azureml]"
+    "%pip install flaml[azureml]"
    ]
   },
   {

notebook/integrate_sklearn.ipynb

@@ -78,7 +78,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!pip install flaml[notebook];"
+    "%pip install flaml[notebook]"
    ]
   },
   {

notebook/research/acl2021.ipynb

@@ -41,8 +41,8 @@
    },
    "outputs": [],
    "source": [
-    "!pip install flaml[nlp]==0.7.1 # in higher version of flaml, the API for nlp tasks changed\n",
-    "!pip install transformers==3.4.0\n",
+    "%pip install flaml[nlp]==0.7.1 # in higher version of flaml, the API for nlp tasks changed\n",
+    "%pip install transformers==3.4.0\n",
     "from flaml.nlp import AutoTransformers\n"
    ]
   },

notebook/tune_huggingface.ipynb

@@ -17,7 +17,7 @@
    },
    "outputs": [],
    "source": [
-    "#!pip install torch transformers datasets ipywidgets flaml[blendsearch,ray];"
+    "# %pip install torch transformers datasets ipywidgets flaml[blendsearch,ray]"
    ]
   },
   {

notebook/tune_pytorch.ipynb

@@ -18,7 +18,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install torchvision flaml[blendsearch,ray];"
+    "%pip install torchvision flaml[blendsearch,ray]"
    ]
   },
   {