On Wed, 15 Sep 2021 11:56:47 -0700, Mostowski Collapse wrote:
> What could be slow, repeatedly requesting the "args"
> field. Maybe I should do:
>
> help = term.args i = 0 while i < len(help) - 1:
> ____mark_term(help[i])
> ____i += 1 term = help[i]
>
No this construct is a common error in new python programmers
the next progression they make is when they discover the range function
items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
for x in range(len(list)):
print (items[x])
but that is equally inefficient
the pythonic way is as previously suggested
for item in items:
print(item)
then the management of the index is being handled by the python
interpreter internally & is effectively machine code.
every time you increment your own pointer the interpreter has to process
reading the next line, reading the variable , incrementing it & then
using it. this is what makes your current code slow.
if you ever find your self creating a variable purely to use as a pointer
into a list then you are almost certainly taking the wrong approach.
more usefull links
https://www.youtube.com/watch?v=zdJEYhA2AZQ
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"Show me a good loser, and I'll show you a loser."
-- Vince Lombardi, football coach
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