En Tue, 02 Oct 2007 19:01:27 -0300, wang frank <[EMAIL PROTECTED]> escribi�:
> I am writing Python script now. The project will grow bigger in future. > I need to import some packages for several functions, such as numpy. > Where is the best plalce to put the import numpy command? Is it fine to > put on the first line in the file? Yes, this is the usual way. > Is it better to put it into each function after the def functionname? or > they are the same. I only place an import inside a function when it's expensive (e.g. loads a lot of things) and not always required, or when it's irrelevant to the main purpose of the module (e.g. "import traceback" when it's used just to handle some special exceptions). > Since numpy function will be used in all files, so I have to import it > in each files. Does this will increase the memory usuage or there are > better way to do it. No. Only the first import actually has to load the module; later imports quickly return a reference to the already loaded module. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
