Learning Python
Attempting to learn Python; I constructed the module listed below. I would like to make it shorter, faster, more "Python like". (Windows XP, Pro.) Many thanks for any advice! ... #--- # Name:SendMoreMoney.py # Purpose: A solution to the SEND+MORE=MONEY puzzle. # # Author: Dr. Pastor # # Copyright: (c) Dr. Pastor 2006 #--- #!/usr/bin/env python # # The solution for the puzzle of #SEND # +MORE # - # MONEY # def perm(items, n=None): if n is None: n = len(items) for i in range(len(items)): v = items[i:i+1] if n == 1: yield v else: rest = items[:i] + items[i+1:] for p in perm(rest, n-1): yield v + p def comb(items, n=None): if n is None: n = len(items) for i in range(len(items)): v = items[i:i+1] if n == 1: yield v else: rest = items[i+1:] for c in comb(rest, n-1): yield v + c # # S E N D M O R Y # ['0','1','2','3','4','5','6','7','8','9'] # print print "Selections of 8 items from 10 then the permutation of them." print b=0 for s in comb([0,1,2,3,4,5,6,7,8,9],8): for a in perm(s,None): if (a[4]*1000+a[5]*100+a[2]*10+a[1])*10+a[7] == \ (a[0]+a[4])*1000+(a[1]+a[5])*100+(a[2]+a[6])*10+(a[3]+a[1]): b += 1 print ' SEND', ' ',a[0],a[1],a[2],a[3] print ' MORE', ' ',a[4],a[5],a[6],a[1] print ' ', ' -' print 'MONEY', '',a[4],a[5],a[2],a[1],a[7] print print "There are ", b, " solutions." print ... == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Re: Learning Python
What a bright replies! It is a pleasure to study them. Thanks to you all. == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Motions.
Hi: I would like to track the motions of small birds in short (20-30sec) .avi films. What tool-set/programs would be wise to use? Thanks for any guidance. == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Re: Motions.
Thank you Sir! Gerrit Holl wrote: > On 2006-10-11 00:26:38 +0200, Dr. Pastor wrote: == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Re: Array? Please help.
No it is not home work. (I have not did any home work for more than 50 years.) I am a beginner, and just do not see a really proper way to program the question. Thanks anyhow. Scott David Daniels wrote: > Dr. Pastor wrote: > >> I need a row of 127 bytes that I will use as a >> circular buffer. Into the bytes (at unspecified times) >> a mark (0> After some time the "buffer" will contain the last 127 marks. > > > Sounds a lot like homework. > -- http://mail.python.org/mailman/listinfo/python-list
Re: Array? Please help.
Many thanks to you all. (Extra thanks to Mr. Daniels.) Dr. Pastor wrote: > I need a row of 127 bytes that I will use as a > circular buffer. Into the bytes (at unspecified times) > a mark (0 After some time the "buffer" will contain the last 127 marks. > (A pointer will point to the next byte to write to.) > What would be the Pythonic way to do the above? > Thanks for any guidance. -- http://mail.python.org/mailman/listinfo/python-list
Re: Best IDE for Python
Please could you tell me how to uninstal SPE? Regards. jelle wrote: > I think SPE is a terrible complete and efficient IDE! > == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Re: Best IDE for Python
Please advise how to uninstal SPE. Regards, Dr. Pastor. jelle wrote: > I think SPE is a terrible complete and efficient IDE! > == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Re: Best IDE for Python
Thank you Sir. I downloaded SPE from the main site. Installed on Windows XP. Regards. Sybren Stuvel wrote: > Dr. Pastor enlightened us with: >> Please advise how to uninstal SPE. > > First you'll have to tell us how you installed it in the first place. > Without that, we can only guess. > > Sybren == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Exception EOFError.
Python 2.5b3 on Windows XP. (exception EOFError Raised when one of the built-in functions (input() or raw_input()) hits an end-of-file condition (EOF) without reading any data.) For me, raw_input (hit enter) returns an empty string! (>>> x=raw_input() >>> x '' >>> ) Any confirmation? Regards. == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Re: Exception EOFError.
Thank you Sir. Dr. Pastor wrote: > Python 2.5b3 on Windows XP. > > (exception EOFError > Raised when one of the built-in functions (input() or > raw_input()) hits an end-of-file condition (EOF) without reading any data.) > > For me, raw_input (hit enter) returns an empty string! > (>>> x=raw_input() > > >>> x > '' > >>> ) > > Any confirmation? > Regards. > > == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet > News== > http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ > Newsgroups > = East and West-Coast Server Farms - Total Privacy via Encryption = == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Test for number?
In the following code I would like to ascertain
that x has/is a number. What the simplest TEST should be?
(Could not find good example yet.)
---
x=raw_input('\nType a number from 1 to 20')
if TEST :
Do_A
else:
Do_B
---
Thanks for any guidance.
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Path?
I installed Python 2.5 on Windows XP. I got the following system that works well. --- Python 2.5b3 (r25b3:51041, Aug 3 2006, 09:35:06) [MSC v.1310 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information. IDLE 1.2b3 >>> import sys >>> sys.path ['C:\\Python25\\Lib\\idlelib', 'C:\\WINDOWS\\system32\\python25.zip', 'C:\\Python25\\DLLs', 'C:\\Python25\\lib', 'C:\\Python25\\lib\\plat-win', 'C:\\Python25\\lib\\lib-tk', 'C:\\Python25', 'C:\\Python25\\lib\\site-packages', 'C:\\Python25\\lib\\site-packages\\wx-2.6-msw-ansi'] >>> --- Question: How did I end up with the second item in path? Is that a zip file? There is no such a file in system32. What would be the correct way to set path to assist the search? Thanks for any advice. == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Re: Path?
Many thanks, Sir. == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Video.
Dear All: (I am a 100% beginner in Python.) What environment,library,product should I import or study to manipulate cameras, video, fire-wire, avi files? Thanks you for any guidance. -- http://mail.python.org/mailman/listinfo/python-list
Re: Video.
Thank you Sybren. Where is it? Regards. -- http://mail.python.org/mailman/listinfo/python-list
Re: Video.
Many thanks to you All. -- http://mail.python.org/mailman/listinfo/python-list
PYTHONPATH?
Several Documents about Python refer to PYTHONPATH. I could not find such variable. (Python 2.4.2, IDLE 1.1.2, Windows XP) How should/could I nominate a Directory to be the local Directory? Thanks for any guidance. -- http://mail.python.org/mailman/listinfo/python-list
Cretins.
Please do not do business with those cretins who without authorization attaching the following text to my postings: == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = == Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News== http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups = East and West-Coast Server Farms - Total Privacy via Encryption = -- http://mail.python.org/mailman/listinfo/python-list
Array?
I need a row of 127 bytes that I will use as a circular buffer. Into the bytes (at unspecified times) a mark (0http://mail.python.org/mailman/listinfo/python-list
Array? Please help.
I need a row of 127 bytes that I will use as a circular buffer. Into the bytes (at unspecified times) a mark (0http://mail.python.org/mailman/listinfo/python-list
About IDLE?
Installed Python 2.4.2 on Windows XP.
Activated IDLE.
Loaded the following into the Edit window:
---
# dates are easily constructed and formatted (Tutorial 10.8)
from datetime import date
now = date.today()
now
now.strftime("%m-%d-%y. %d %b %Y is a %A on the %d day of %B.")
# dates support calendar arithmetic
birthday = date(1985, 12, 1)
age = now - birthday
age.days
---
When I select Run Module in the Edit window, I got only
two >>> after the RESTART line.
I expected to see the output of several commands!
Typing in age.days do produce the number of days.
Why I do not get any output?
Thanks for any guidance.
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About printing in IDLE?
Installed Python 2.4.2 on Windows XP. Activated IDLE. Loaded the following to the Edit window: --- print "hello world" for i in range(10): print i, print "Done" --- It prints as: 0 1 2 3 4 5 6 7 8 9 Done Should not Done be printed on a new line alone? Thanks for any guidance. -- http://mail.python.org/mailman/listinfo/python-list
Re: About IDLE?
Any reply?
Dr. Pastor wrote:
> Installed Python 2.4.2 on Windows XP.
> Activated IDLE.
> Loaded the following into the Edit window:
> ---
> # dates are easily constructed and formatted (Tutorial 10.8)
>
> from datetime import date
> now = date.today()
> now
>
> now.strftime("%m-%d-%y. %d %b %Y is a %A on the %d day of %B.")
>
> # dates support calendar arithmetic
>
> birthday = date(1985, 12, 1)
> age = now - birthday
> age.days
> ---
> When I select Run Module in the Edit window, I got only
> two >>> after the RESTART line.
> I expected to see the output of several commands!
> Typing in age.days do produce the number of days.
>
> Why I do not get any output?
> Thanks for any guidance.
>
>
--
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Re: About printing in IDLE?
Many thanks to you all. -- http://mail.python.org/mailman/listinfo/python-list
Re: About IDLE?
Thank you! I can see only your reply. But indeed google prints three. The mind boggles. Nick Smallbone wrote: > Dr. Pastor wrote: > >>Any reply? >> > > > ahem. three replies, when i counted: > http://groups.google.com/group/comp.lang.python/browse_frm/thread/ab0c8455251e616c/ > -- http://mail.python.org/mailman/listinfo/python-list
