Time travel - how to simplify?

[Adam M. Dobrin]

IMHO <http://idaho.reallyhim.com>, letters <http://rek.reallyhim.com> and
<http://rea.reallyhim.com> time <http://medusa.reallyhim.com> travel
<http://serden.reallyhim.com> do <http://don.reallyhim.com> not
<http://ant.reallyhim.com> mix <http://rix.reallyhim.com> well
<http://heyad.reallyhim.com>.


ᐧ

On Sat, Nov 18, 2017 at 1:02 PM, Andrew Z <formisc at gmail.com> wrote:

> Thank you for your input, gentlemen.
>
> I'm thinking about the following approach:
>
> import datetime
> from dateutil import relativedelta
>
> fut_suffix ={ 1 : 'F',
>               2 : 'G',
>               3 : 'H',
>               4 : 'J',
>               5 : 'K',
>               6 : 'M',
>               7 : 'N',
>               8 : 'Q',
>               9 : 'U',
>               10: 'V',
>               11: 'X',
>               12: 'Z'
>               }
>
> endDate = datetime.date.today()
> startDate = endDate + relativedelta.relativedelta(months = -6,day = 1)
>
> LocalSmlSuffix = [ suffix for mnth, suffix in fut_suffix.items() if
> mnth == startDate.month]
>
>
> On Tue, Nov 14, 2017 at 5:01 PM, Rick Johnson <
> rantingrickjohnson at gmail.com>
> wrote:
>
> > On Tuesday, November 14, 2017 at 1:44:17 PM UTC-6, Ben Finney wrote:
> > > 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)
> >
> > Ben's advice is spot on[1], and exactly what i would do, but
> > i believe it's important for you to discover how to
> > implement a simple cycling algorithm yourself, _before_
> > reaching for the pre-packaged junkfood in the itertools
> > module. Can you do it? If not, then do as much as you can
> > and then ask for help. Hey, you're only hurting yourself if
> > you don't learn how. And it's surprisingly easy!
> >
> > [1] and it looks as though he included the kitchen sink,
> > washcloths, dish soap, and some fine china as well! ಠ_ಠ
> > --
> > https://mail.python.org/mailman/listinfo/python-list
> >
> --
> https://mail.python.org/mailman/listinfo/python-list
>