Terry Reedy wrote:
>>Laguna wrote:
>>
>>>I want to find the expiration date of stock options (3rd Friday of the
>>>month) for an any give month and year.
>
>
>>From year and month (and day=1) get the day of the week (n in [0,6]) of the
> first of the month using some version of the the standard
> Laguna wrote:
>> I want to find the expiration date of stock options (3rd Friday of the
>> month) for an any give month and year.
>From year and month (and day=1) get the day of the week (n in [0,6]) of the
first of the month using some version of the the standard formula (see
below) and look
>>> import calendar
>>> [y[4] for y in calendar.monthcalendar(2005, 9) if y[4]!=0][2]
16
>>> [y[4] for y in calendar.monthcalendar(2003, 6) if y[4]!=0][2]
20
>>> [y[4] for y in calendar.monthcalendar(2006, 2) if y[4]!=0][2]
17
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Laguna wrote:
> Hi Gurus,
>
> I want to find the expiration date of stock options (3rd Friday of the
> month) for an any give month and year. I have tried a few tricks with
> the functions provided by the built-in module time, but the problem was
> that the 9 element tuple need to be populated corr
Laguna wrote:
> Hi Gurus,
>
> I want to find the expiration date of stock options (3rd Friday of the
> month) for an any give month and year. I have tried a few tricks with
> the functions provided by the built-in module time, but the problem was
> that the 9 element tuple need to be populated cor
On Fri, 02 Sep 2005 20:53:44 -0400, Peter Hansen <[EMAIL PROTECTED]> wrote:
> Carsten Haese wrote:
>> On Fri, 2005-09-02 at 16:46, Laguna wrote:
>>>def expiration(year, month):
>>> weekday = calendar.weekday(year, month, 1)
>>> table = [19, 18, 17, 16, 15, 21, 20]
>>> return table[weekd
Paul Rubin wrote:
> Peter Hansen <[EMAIL PROTECTED]> writes:
>
>>(And, if I were "optimizing", I would of course dispense with the
>>dynamic creation of the static table upon every execution of
>>expiration(), and move it outside the function.)
>
> Replacing it with a tuple might be enough for th
Donn,
You didn't look closely enough at those results. The OP's point was
that he did not know how to set all the tuple values correctly. Here's
a clearer example, I think:
import time
print time.asctime((2005,9,1,0,0,0,0,0,0))
print time.asctime((2005,9,1,0,0,0,1,0,0))
print time.asctime((2005
Peter Hansen wrote:
> Carsten Haese wrote:
>
>> On Fri, 2005-09-02 at 16:46, Laguna wrote:
>>
>>> def expiration(year, month):
>>> weekday = calendar.weekday(year, month, 1)
>>> table = [19, 18, 17, 16, 15, 21, 20]
>>> return table[weekday]
>>>
>> This, of course, can be "optimized" in
Peter Hansen <[EMAIL PROTECTED]> writes:
> (And, if I were "optimizing", I would of course dispense with the
> dynamic creation of the static table upon every execution of
> expiration(), and move it outside the function.)
Replacing it with a tuple might be enough for that.
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Carsten Haese wrote:
> On Fri, 2005-09-02 at 16:46, Laguna wrote:
>>def expiration(year, month):
>> weekday = calendar.weekday(year, month, 1)
>> table = [19, 18, 17, 16, 15, 21, 20]
>> return table[weekday]
>>
> This, of course, can be "optimized" into
>
> def expiration(year, mont
Hey Donn,
I don't mean to offend anyone here. I was just saying that the other
solution is better suited for my problem. I truly appreciate your
analysis and suggestions.
BTW, I am not a programmer :( and I like the simplest solution whenever
possible.
Cheers,
L
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In article <[EMAIL PROTECTED]>,
"Laguna" <[EMAIL PROTECTED]> wrote:
> > What do you mean by, "the 9 element tuple need to be populated
> > correctly"? Do you need someone to tell you what values it
> > needs? What happens if you use (2005, 9, 1, 0, 0, 0, 0, 0, 0),
> > for example? If you make
Thanks for the "hint" :) I may use your solution if this becomes my
bottleneck!
I try to get away from Perl-ish syntax though.
Best,
L
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On Fri, 2005-09-02 at 16:46, Laguna wrote:
> Paul,
>
> Thanks for the suggestion on calendar module. Here is my solution and
> it works:
>
> def expiration(year, month):
> weekday = calendar.weekday(year, month, 1)
> table = [19, 18, 17, 16, 15, 21, 20]
> return table[weekday]
>
Paul,
Thanks for the suggestion on calendar module. Here is my solution and
it works:
def expiration(year, month):
weekday = calendar.weekday(year, month, 1)
table = [19, 18, 17, 16, 15, 21, 20]
return table[weekday]
Cheers,
Laguna
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> What do you mean by, "the 9 element tuple need to be populated
> correctly"? Do you need someone to tell you what values it
> needs? What happens if you use (2005, 9, 1, 0, 0, 0, 0, 0, 0),
> for example? If you make this tuple with localtime or gmtime,
> do you know what the 7th (tm[6]) elemen
In article <[EMAIL PROTECTED]>,
"Laguna" <[EMAIL PROTECTED]> wrote:
> I want to find the expiration date of stock options (3rd Friday of the
> month) for an any give month and year. I have tried a few tricks with
> the functions provided by the built-in module time, but the problem was
> that the
Laguna wrote:
> Hi Gurus,
>
> I want to find the expiration date of stock options (3rd Friday of the
> month) for an any give month and year. I have tried a few tricks with
> the functions provided by the built-in module time, but the problem was
> that the 9 element tuple need to be populated cor
"Laguna" <[EMAIL PROTECTED]> writes:
> I want to find the expiration date of stock options (3rd Friday of the
> month) for an any give month and year. I have tried a few tricks with
> the functions provided by the built-in module time, but the problem was
> that the 9 element tuple need to be popul
Hi Gurus,
I want to find the expiration date of stock options (3rd Friday of the
month) for an any give month and year. I have tried a few tricks with
the functions provided by the built-in module time, but the problem was
that the 9 element tuple need to be populated correctly. Can anyone
help me
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