code: def is_win64():
      
      # Unfortunately, python does not provide a useful way to determine
      # if the underlying Windows OS is 32-bit or 64-bit.  Worse, whether
      # the Python itself is 32-bit or 64-bit affects what it returns,
      # so nothing in sys.* or os.* help.
  
      # Apparently the best solution is to use env vars that Windows
      # sets.  If PROCESSOR_ARCHITECTURE is not x86, then the python
      # process is running in 64 bit mode (on a 64-bit OS, 64-bit
      # hardware, obviously).
      # If this python is 32-bit but the OS is 64, Windows will set
      # ProgramW6432 and PROCESSOR_ARCHITEW6432 to non-null.
      # (Checking for HKLM\Software\Wow6432Node in the registry doesn't
      # work, because some 32-bit installers create it.)
      global _is_win64
      if _is_win64 is None:
          # I structured these tests to make it easy to add new ones or
          # add exceptions in the future, because this is a bit fragile.
          _is_win64 = False
          if os.environ.get('PROCESSOR_ARCHITECTURE', 'x86') != 'x86':
              _is_win64 = True
          if os.environ.get('PROCESSOR_ARCHITEW6432'):
              _is_win64 = True
          if os.environ.get('ProgramW6432'):
              _is_win64 = True
      return _is_win64
docs: Return true if running on windows 64 bits.
  
      Works whether python itself runs in 64 bits or 32 bits.