On 11/02/15 02:39, daaku gee wrote:
When importing from other modules, I've seen syntax like:
import from <module> <Class>
from <module> import <name>
Note you don't import classes from modules you import names.
(The name might be the name of a class of course!)
This form is for cases where you only want to use one or two features of
a module and don't want to have the inconvenience of typing the module
name in front each time you use them.
import <module>
This is the normal usage. It gives you indirect access to all of the
module features using the <module>.<name> notation
import from <module> <Class> as <some_name>
import <module> as <alias>
or
from <module> import <name> as <alias>
These tend to be used where the module has a very long name that
you don't want to type out in full each time, so you give it a
shorter alias.
You might also use it if you are working on code that already has
a variable with the same name as the module/feature that you want
to import. You either rename all your variable references or you
choose an alias that does not conflict.
Is one better than the other or is it just personal choice?
'better' is often a subjective term.
There are reasons for each as described above.
What is best depends on the circumstance. If in
doubt use
import <module>
HTH
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
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