The py_compile module, shown in Example 13-10, allows you to explicitly compile Python modules to bytecode. It behaves like Python’s import statement, but takes a filename, 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.