code: def copy_readme():
      """Copy a user README with info regarding the website, instead of
      the developer README which tells one how to build the source.
      """
      print("Copy user README.rst for installer.")
      shutil.copy(USER_README, DEV_README)
  
file_path: dipy/tools/osxbuild.py
imports: import os
  import sys
  import shutil
  import subprocess
  from optparse import OptionParser
  from getpass import getuser
label_desc: Use image node_id 4 for calling a global function with example usage: copy_readme() without return types