The py_compile module

This module allows you to explicitly compile Python modules to bytecode. It behaves like Python’s import statement, but takes a file name, not a module name.

# File: py-compile-example-1.py

import py_compile

# explicitly compile this module
py_compile.compile("py-compile-example-1.py")

The compileall module can be used to compile all Python files in an entire directory tree.