title: How can I get stub files for `matplotlib`, `numpy`, `scipy`, `pandas`, etc.?
body: <p>I know that the stub files for built-in Python library for type checking and static analysis come with <code>mypy</code> or PyCharm installation. How can I get stub files for <code>matplotlib</code>, <code>numpy</code>, <code>scipy</code>, <code>pandas</code>, etc.?</p>