Python handles globals badly.

Antoon Pardon antoon.pardon at rece.vub.ac.be
Wed Sep 9 12:42:33 CEST 2015


Op 09-09-15 om 01:55 schreef Michael Torrie:
> In any case, 0-based indexing in Python makes a lot of sense when you
> bring in the slicing syntax. Especially if you think of slicing as
> operating on the boundaries between cells as it were.

Then you have never used slices with a negative step.

If slicing would operate on the boundaries between cells
then the reverse of lst[2:7] would be lst[7:2:-1] instead
it is lst[6:1:-1]

This gets you in trouble when you want to reverse through
lst[0:8] which would be lst[7:-1:-1] but now the special
meaning of negative indexes kicks in and you are screwed.

-- 
Antoon Pardon



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