Re: a little help

[Lie Ryan]

On 01/06/2012 03:04 AM, Andres Soto wrote:
    Please, see my comments between your lines. Thank you very much for
    your explanation!
    *
    *
    *From:* Lie Ryan <lie.1...@gmail.com>
    *To:* python-list@python.org
    *Sent:* Thursday, January 5, 2012 2:30 AM
    *Subject:* Re: a little help
    On 01/05/2012 11:29 AM, Andres Soto wrote:
     > my mistake is because I have no problem to do that using Prolog which
     > use an interpreter as Python. I thought that the variables in the
    main
     > global memory space (associated with the command line
    environment) were
     > kept, although the code that use it could change.
     > As you explain me, Python behave like a compiled language: any time I
     > make a change in the code, I have to "compile" it again, and
    re-run (and
     > re-load the data). There is nothing to do.

    it is usually trivial to redefine state-free functions, you just
    need to copy and paste the new code into the shell.

    &&&yes, I am already using that, but I thought that maybe there were
    a more elegant way. In Prolog, you just have to reload the code and
    nothing happens with the global variables

Alternative to copy pasting is to reload the module; but that comes with 
the caution that the old function/class definition may still be lying 
around in the global namespace if you imported them into your global 
namespace, so you had to either restrict yourself to using 
class/function using the module namespace or you had to remember to 
reimport them into your global namespace. You also need to be careful if 
you passes a module function as callbacks, as the callback will not be 
automatically replaced with the new definition.

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