Code Snippets

Neil Cerutti neilc at norwich.edu
Wed Nov 1 14:06:27 EDT 2017


On 2017-11-01, Stefan Ram <ram at zedat.fu-berlin.de> wrote:
>   I started to collect some code snippets:
>
>   Sleep one second
>
> __import__( "time" ).sleep( 1 )
>
>   What I'm supposed to do instead, I guess, is:
>
>   Sleep one second
>
> import time
> ...
> time.sleep( 1 )
>
>   Get current directory
>
> import os
> ...
> os.getcwd()
>
>   Get a random number
>
> import random
> ...
> random.random()
>
>   Now, the user has to cut the import, paste it to the top
>   of his code, then go back to the list of snippets, find
>   the same snippet again, copy the expression, go to his code,
>   then find the point where he wanted to insert the snippet again,
>   and finally insert the snippet. And still there now is a
>   risk of name collisions. So, it seems to me that __import__
>   is just so much better!

You can import wherever you like--only good style requires you to
put them at the top of your file.

Moreover, snippets could be a library, with each snippet a
function, with the import inside the function. That would keep
the module name out of your global namespace.

-- 
Neil Cerutti




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