Time travel - how to simplify?
Ben Finney
ben+python at benfinney.id.au
Tue Nov 14 14:43:25 EST 2017
Andrew Z <formisc at gmail.com> writes:
> Now i want to get certain number of months. Say, i need 3 months duration
> starting from any month in dict.
>
> so if i start @ 7th:
> my_choice =7
> for mnth, value in fut_suffix:
> if my_choice >= mnth
> # life is great
> but if :
> my_choice = 12 then my "time travel" becomes pain in the neck..
The ‘itertools’ library in the Python standard library
<URL:https://docs.python.org/3/library/itertools.html> has what you
need:
import itertools
month_values = sorted(list(fut_suffix.keys()))
month_cycle = itertools.cycle(month_values)
month_choice = 7
three_months_starting_at_choice = []
while len(three_months_starting_at_choice) < 3:
this_month = next(month_cycle)
if this_month >= month_choice:
three_months_starting_at_choice.append(this_month)
--
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`\ indefensible as infanticide.” —Dame Rebecca West |
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Ben Finney
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