diff --git a/.gitignore b/.gitignore
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@@ -60,3 +60,7 @@ model/
*.pkl
+.vscode/
+.ipynb_checkpoints/
+*.sqlite
+jupyterhub_cookie_secret
diff --git a/.idea/misc.xml b/.idea/misc.xml
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diff --git a/.idea/modules.xml b/.idea/modules.xml
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diff --git a/basic/.ipynb_checkpoints/broadcast-checkpoint.ipynb b/basic/.ipynb_checkpoints/broadcast-checkpoint.ipynb
deleted file mode 100644
index 2fd64429..00000000
--- a/basic/.ipynb_checkpoints/broadcast-checkpoint.ipynb
+++ /dev/null
@@ -1,6 +0,0 @@
-{
- "cells": [],
- "metadata": {},
- "nbformat": 4,
- "nbformat_minor": 2
-}
diff --git a/basic/.ipynb_checkpoints/class_and_instance-checkpoint.ipynb b/basic/.ipynb_checkpoints/class_and_instance-checkpoint.ipynb
deleted file mode 100644
index 2fd64429..00000000
--- a/basic/.ipynb_checkpoints/class_and_instance-checkpoint.ipynb
+++ /dev/null
@@ -1,6 +0,0 @@
-{
- "cells": [],
- "metadata": {},
- "nbformat": 4,
- "nbformat_minor": 2
-}
diff --git a/basic/.ipynb_checkpoints/numpy_func-checkpoint.ipynb b/basic/.ipynb_checkpoints/numpy_func-checkpoint.ipynb
deleted file mode 100644
index 2fd64429..00000000
--- a/basic/.ipynb_checkpoints/numpy_func-checkpoint.ipynb
+++ /dev/null
@@ -1,6 +0,0 @@
-{
- "cells": [],
- "metadata": {},
- "nbformat": 4,
- "nbformat_minor": 2
-}
diff --git a/basic/.ipynb_checkpoints/python_lazy_property-checkpoint.ipynb b/basic/.ipynb_checkpoints/python_lazy_property-checkpoint.ipynb
deleted file mode 100644
index 2fd64429..00000000
--- a/basic/.ipynb_checkpoints/python_lazy_property-checkpoint.ipynb
+++ /dev/null
@@ -1,6 +0,0 @@
-{
- "cells": [],
- "metadata": {},
- "nbformat": 4,
- "nbformat_minor": 2
-}