On 1/9/2010 6:39 AM, Rob Cherry wrote:
Extending on this advice somewhat - is it *ever* correct to "import foobar".
There are countless examples of
import os,sys
The rule of thumb is:
Use the "from module import something" if you're only going to use one
or two functions from the module; only use "from module import *" if the
module was designed for such use (e.g. Tkconstants, pygame.constants) or
if you're in the interactive interpreter. When in doubt, use the "import
module" form.
etc,etc. Strictly speaking should we always be using "from" to only
get what we know we need?
Not necessarily, the "from module..." actually does a full "import
module" in the back; you don't actually save anything by
micro-controlling. In fact, it is quite a work to update the from-list
every time you want to access another class/function in the module.
However, the "from module import *" form is considered a bad form
because it introduces namespace pollution.
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