The Customization Modules-------------------------Python provides two hooks to let you customize it::mod:`sitecustomize` and:mod:`usercustomize`.  To see how it works, you need first to find the locationof your user site-packages directory.  Start Python and run this code::   >>> import site   >>> site.getusersitepackages()   '/home/user/.local/lib/python3.5/site-packages'Now you can create a file named:file:`usercustomize.py` in that directory andput anything you want in it.  It will affect every invocation of Python, unlessit is started with the:option:`-s` option to disable the automatic import.:mod:`sitecustomize` works in the same way, but is typically created by anadministrator of the computer in the global site-packages directory, and isimported before:mod:`usercustomize`.  See the documentation of the:mod:`site`module for more details.