module-import-not-at-top-of-file (E402)

Derived from the pycodestyle linter.

What it does

Checks for imports that are not at the top of the file.

Why is this bad?

According to PEP 8, "imports are always put at the top of the file, just after any module comments and docstrings, and before module globals and constants."

Example

"One string"
"Two string"
a = 1
import os
from sys import x

Use instead:

import os
from sys import x

"One string"
"Two string"
a = 1