Immutability of Floats, Ints and Strings in Python

Hi All, Out of curiosity, I wanted to understand the reason behind having different memory location for two identical floats . This is unlike ints or strings. Tried googling but couldn't find anything concrete. Any links or references would be appreciated! Example: For FLOATS: == >>>

HELP ! Popen.terminate() - WindowsError: [Error 5] Access is denied

but couldn't understand them. In general, How to kill a subprocesses created from a python program.? If that subprocess also creates a new process from itself, how can I kill all child processes from my main python script.? Any ideas.?? Thanks, Nikunj -- http://mail.python.org/mailman/listinfo/python-list