ANN: ActivePython 2.4.1 for Mac OS X is now available!
Today ActiveState is announcing support for Mac OS X. I'm happy to announce that ActivePython 2.4.1 for Mac OS X is now available for free download from: http://www.ActiveState.com/Products/ActivePython/ This brings the number of free ActivePython platforms to four -- with the existing Linux, Solaris and Windows free downloads. Meanwhile, some of you may be interested to know that we are busily working on bringing Komodo to Mac OS X. We expect to offer a beta in August and release later this year. To keep up-to-date with our Mac OS X progress, betas and announcements, we invite you to join our new mailing list: [EMAIL PROTECTED] You can join the OS X announce list on the ActiveState Programmer Network (ASPN): http://listserv.activestate.com/mailman/listinfo/osx-announce What is ActivePython? - ActivePython is ActiveState's quality-assured binary distribution of Python. Builds for Linux, Mac OS X, Solaris and Windows are made freely available. ActivePython includes the Python core and core extensions (zlib 1.2.1, bzip2 1.0.2, bsddb 4.2.52, Tk 8.4.9, and Tix 8.1.4) and is fully compatible with other Python distributions of the same version. ActivePython also includes a wealth of Python documentation, including: - the core Python docs; - Andrew Kuchling's What's New in Python series; - the Non-Programmer's Tutorial for Python; - Mark Pilgrim's excellent Dive into Python; and - a snapshot of the Python FAQs, HOWTOs and PEPs. Once installed on the Mac, you can find the ActivePython documentation here: /Library/Documentation/Help/ActivePython 2.4 Help/index.html An online version of the docs can be found here: http://aspn.activestate.com/ASPN/docs/ActivePython/2.4/welcome.html Thanks, and enjoy! Trent, Python Tech Lead -- Trent Mick [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: random module question
Raymond Hettinger wrote: The answer is a qualified Yes. While the core generator (currently Thanks! That is the answer I'm looking for. And to Paul Rubin, it is a good point that Jython might not support it, but at this point it doesn't interest me. The program is only for myself anyway. R -- http://mail.python.org/mailman/listinfo/python-list
poker card game revisited (code included)
Hi, i've included the code so interested people can take a look. I've tried to expand on the thread of 26/05/2005 on Checking for a full house. Code is suboptimal as I coded it rather quickly. I've added the normal classes one would expect from a cardgame: card, deck, hand etc. 1. I can detect most things except a straightflush. The problem with the code now is that it only returns 1 straight which is enough for mere straight detection but won't suffice for hand comparison and especially detecting straight flushes. For use in straight flush detection, the function would need to return all possible straights and then these would need to be checked to see if they are flushes. For instance a list [4,4,5,5,6,7,8] yields 4 different straights. A hand like [4,4,5,5,6,7,8,9] gets even worse. I can't see how i can do this using sets, i'll need to come up with another method since the suit is important. 2. Hand comparison. For this to succeed the getrank function would need to return the exact 5 cards that represent the highest hand. This could be less than 5 cards if one uses wildcards. Then you not only have the correct rank but also the highest hand so you can compare in case there are ties. 3. x wild. For games like deuces wild, what would be the best way to manage those? I tought about removing them from a hand before shipping it of to the getrank function? Any ideas? Regards, Benedict Verheyen = CODE = Attempt for a poker cardgame representation Benedict Verheyen Code additions from web (http://www.ibiblio.org/obp/thinkCSpy/) and newsgroup comp.lang.python esp. Raymond Hettinger import random class Card(object): Represents a single card 2,3,4, ... 10, 11 for Jack, 12 for Queen, 13 for King, 14 for Ace suitList = [Clubs, Diamonds, Hearts, Spades] rankList = [ narf, narf, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King, Ace] def __init__(self, suit=0, rank=0): Initialise a card @type suit: int @param suit: suit of the card (see suitList) @type rank: int @param rank: rank of the card (see rankList) self.suit = suit self.rank = rank def __str__(self): Pretty print a card return self.rankList[self.rank] + of + self.suitList[self.suit] def __cmp__(self, other): Compare 2 cards @type other: card @param other: the card to compare with # check the suits if self.suit other.suit: return 1 if self.suit other.suit: return -1 # suits are the same... check ranks if self.rank other.rank: return 1 if self.rank other.rank: return -1 # ranks are the same... it's a tie return 0 class Deck(object): Represents a deck of cards. We can have different decks of cards DECK_NORMAL = 1 # 52 cards def __init__(self,decktype=DECK_NORMAL): Makes a deck of cards @type decktype: type of deck @param decktype: what type of deck is it? (DECK_NORMAL,...) self.cards = [] for suit in range(4): for rank in range(2, 15): self.cards.append(Card(suit, rank)) def printdeck(self): Pretty print the deck for card in self.cards: print card def __str__(self): Pretty print the deck s = for i in range(len(self.cards)): s = s + *i + str(self.cards[i]) + \n return s def sort(self,rank=True,suit=False): Sort the deck def sortonrank(x,y): if x.rank y.rank: return 1 if x.rank y.rank: return -1 return 0 def sortonsuit(x,y): if x.suit y.suit: return 1 if x.suit y.suit: return -1 return 0 def sortonboth(x,y): return cmp(x,y) if ( rank == True and suit == False): self.cards.sort(sortonrank) elif ( suit == True and rank == False ): self.cards.sort(sortonsuit) else: self.cards.sort(sortonboth) # roept sort van card op def shuffle(self,nshuffle=1): Shuffle the deck of cards. This happens by swapping cards @type nshuffle: int @param nshuffle: how many times do we shuffle import random nCards = len(self.cards) # swap cards on place i and j for shuffle in range(nshuffle): print shuffle %s % shuffle for i in range(nCards): j = random.randrange(i, nCards) [self.cards[i], self.cards[j]] =
Re: split up a list by condition?
while writing my solution for The python way?, I came across this fragment: vees = [c for c in wlist[::-1] if c in vocals] cons = [c for c in wlist[::-1] if c not in vocals] So I think: Have I overlooked a function which splits up a sequence into two, based on a condition Trying to compress too much into one line is not the python way ;-) vees, cons = [], [] for c in reversed(wlist): if c in vocals: vees.append(c) else: cons.append(c) -- http://mail.python.org/mailman/listinfo/python-list
Re: the python way?
import random
from itertools import ifilter, ifilterfalse
def reinterpolate(word):
word = list(word)
random.shuffle(word)
isvowel = dict.fromkeys('aeiouy').has_key
vowels = ifilterfalse(isvowel, word)
consonants = ifilter(isvowel, word)
result = []
for v, c in map(None, vowels, consonants):
if c:
result.append(c)
if v:
result.append(v)
return ''.join(result)
print reinterpolate(encyclopedias)
--
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Re: random module question
Is Mersenne Twister currently available at all in Jython, for example? Googling for java mersenne twister provides multiple hits including: http://www.axlradius.com/freestuff/Free.htm#MT Raymond -- http://mail.python.org/mailman/listinfo/python-list
reg php.ini equivalent file in python
Dear All, I have one doubt. Is there python.ini file like php.ini in Php? Actually php.ini file controls many aspects of PHP's behavior. The following details of php.ini will explain about it. max_execution_time = 5000 ; Maximum execution time of each script, in seconds (UNIX only) memory_limit = 134217728; Maximum amount of memory a script may consume (128MB) post_max_size = 67108864; Maximum POST-Content length (64MB) If I want to update the above details in Python where I need to change these things in Python regards, Prabahar ___ Too much spam in your inbox? Yahoo! Mail gives you the best spam protection for FREE! http://in.mail.yahoo.com -- http://mail.python.org/mailman/listinfo/python-list
Re: help with sending mail in Program
Ivan Shevanski wrote: Hey i'm new here and relatively new to python. I've made a few small programs and now I'm making a program for my friends that at the end has a feedback form. I want to send the feedback back to my email adress. I know I should use the SMTP module and I have figured out how to send with it, but I can't figure out how to include my variables in it, such as the questions I ask them. Can someone explain this to me? -Ivan If you look at the cgiutils module at : http://www.voidspace.org.uk/python/recipebook.shtml It contains a couple of different functions for sending emails from Python. One using SMTP (either with a login or without), or using the sendmail program. You pass the body of the message to them as a string - so it will be easy enough to construct the string in the way you want. Regards, Fuzzy http://www.voidspace.org.uk/python _ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement -- http://mail.python.org/mailman/listinfo/python-list
Re: SMTP help please
On 6/7/05, Ivan Shevanski [EMAIL PROTECTED] wrote: I really can't figure out anything about the SMTP module. . .I think I'm in over my head( Im pretty new to python). Can someone show me a really(and I mean REALLY) basic tutorial for smtp or explain it? http://effbot.org/zone/librarybook/network-protocols.pdf -- Cheers, Simon B, [EMAIL PROTECTED], http://www.brunningonline.net/simon/blog/ -- http://mail.python.org/mailman/listinfo/python-list
poker card game revisited (code included)
Hi, i've included the code so people can take a look. I've tried to expand on the thread of 26/05/2005 on Checking for a full house. Code is suboptimal as I coded it rather quickly. I've added the normal classes one would expect from a cardgame: card, deck, hand etc. 1. I can detect most things except a straightflush. The problem with the code now is that it only returns 1 straight which is enough for mere straight detection but won't suffice for hand comparison and especially detecting straight flushes. For use in straight flush detection, the function would need to return all possible straights and then these would need to be checked to see if they are flushes. For instance a list [4,4,5,5,6,7,8] yields 4 different straights. A hand like [4,4,5,5,6,7,8,9] gets even worse. I can't see how i can do this using sets, i'll need to come up with another method since the suit is important. 2. Hand comparison. For this to succeed the getrank function would need to return the exact 5 cards that represent the highest hand. This could be less than 5 cards if one uses wildcards. Then you not only have the correct rank but also the highest hand so you can compare in case there are ties. 3. x wild. For games like deuces wild, what would be the best way to manage those? I tought about removing them from a hand before shipping it of to the getrank function? Any ideas? Regards, Benedict Verheyen = CODE = Attempt for a poker cardgame representation Benedict Verheyen Code additions from web (http://www.ibiblio.org/obp/thinkCSpy/) and newsgroup comp.lang.python esp. Raymond Hettinger import random class Card(object): Represents a single card 2,3,4, ... 10, 11 for Jack, 12 for Queen, 13 for King, 14 for Ace suitList = [Clubs, Diamonds, Hearts, Spades] rankList = [ narf, narf, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King, Ace] def __init__(self, suit=0, rank=0): Initialise a card @type suit: int @param suit: suit of the card (see suitList) @type rank: int @param rank: rank of the card (see rankList) self.suit = suit self.rank = rank def __str__(self): Pretty print a card return self.rankList[self.rank] + of + self.suitList[self.suit] def __cmp__(self, other): Compare 2 cards @type other: card @param other: the card to compare with # check the suits if self.suit other.suit: return 1 if self.suit other.suit: return -1 # suits are the same... check ranks if self.rank other.rank: return 1 if self.rank other.rank: return -1 # ranks are the same... it's a tie return 0 class Deck(object): Represents a deck of cards. We can have different decks of cards DECK_NORMAL = 1 # 52 cards def __init__(self,decktype=DECK_NORMAL): Makes a deck of cards @type decktype: type of deck @param decktype: what type of deck is it? (DECK_NORMAL,...) self.cards = [] for suit in range(4): for rank in range(2, 15): self.cards.append(Card(suit, rank)) def printdeck(self): Pretty print the deck for card in self.cards: print card def __str__(self): Pretty print the deck s = for i in range(len(self.cards)): s = s + *i + str(self.cards[i]) + \n return s def sort(self,rank=True,suit=False): Sort the deck def sortonrank(x,y): if x.rank y.rank: return 1 if x.rank y.rank: return -1 return 0 def sortonsuit(x,y): if x.suit y.suit: return 1 if x.suit y.suit: return -1 return 0 def sortonboth(x,y): return cmp(x,y) if ( rank == True and suit == False): self.cards.sort(sortonrank) elif ( suit == True and rank == False ): self.cards.sort(sortonsuit) else: self.cards.sort(sortonboth) # roept sort van card op def shuffle(self,nshuffle=1): Shuffle the deck of cards. This happens by swapping cards @type nshuffle: int @param nshuffle: how many times do we shuffle import random nCards = len(self.cards) # swap cards on place i and j for shuffle in range(nshuffle): print shuffle %s % shuffle for i in range(nCards): j = random.randrange(i, nCards) [self.cards[i], self.cards[j]] = [self.cards[j],
Re: SMTP help please
Ivan Shevanski wrote: I really can't figure out anything about the SMTP module. . .I think I'm in over my head( Im pretty new to python). Can someone show me a really(and I mean REALLY) basic tutorial for smtp or explain it? program: I want to make my program have a feedback form attached to it at the end which sends me the form when they're done. I don't especially want them to have to input all the needed details though. . .Just thought I'd put this in so you'd know what its for. -Ivan _ Dont just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/ Ivan, import smtplib server = smtplib.SMTP(mailserver.somewhere.com) server.set_debuglevel(3) fromaddr = [EMAIL PROTECTED] toaddrs = [[EMAIL PROTECTED], [EMAIL PROTECTED]] msg = Subject: Hi I'm great Thats right I really am server.sendmail(fromaddr, toaddrs, msg) server.quit() HTH Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: the python way?
I like this solution. For some reason it made me want to write a Ruby
version of it. Possibly something about the title and the fact that
Ruby enthusiasts are always going on about the Ruby way.
VOWELS = 'aeiouy'.split('')
def reinterpolate(word)
letters = word.split('').sort_by{rand}
vowels = letters.find_all{|l| VOWELS.include?(l) }
consonants = letters - vowels
return vowels.zip(consonants).map{|v, c| #{c}#{v} }.join('')
end
puts reinterpolate(encyclopedias)
--
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Re: the python way?
Doh! The ifilter() and ifilterfalse() calls should be swapped in the previous post. -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about Object Oriented + functions/global vars?
Christopher J. Bottaro wrote:
(snip)
1. The upload function is not an object.
Yes it is. In Python, everything's an object.
ftp.storbinary.__class__.__name__
'instancemethod'
ftp.storbinary.foobar = 42
Traceback (most recent call last):
File stdin, line 1, in ?
AttributeError: 'instancemethod' object has no attribute 'foobar'
--
bruno desthuilliers
python -c print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in '[EMAIL PROTECTED]'.split('@')])
--
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Re: Question about Object Oriented + functions/global vars?
gene tani wrote:
#include canonical design pattern advice
longjmp(Borders or other_big_chain_bookstore)
opt1=fopen(Oreilly's Head first design pattern,r)
opt2=fopen(design patterns book by Shalloway and trott (i think that's
their names),r)
another=poll(any other intro to DP books that people like?)
another.append(what_about(GOF))
--
bruno desthuilliers
ruby -e print '[EMAIL PROTECTED]'.split('@').collect{|p|
p.split('.').collect{|w| w.reverse}.join('.')}.join('@')
--
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Re: split up a list by condition?
Reinhold Birkenfeld wrote:
Hi,
while writing my solution for The python way?, I came across this
fragment:
vees = [c for c in wlist[::-1] if c in vocals]
cons = [c for c in wlist[::-1] if c not in vocals]
So I think: Have I overlooked a function which splits up a sequence
into two, based on a condition? Such as
vees, cons = split(wlist[::-1], lambda c: c in vocals)
Reinhold
If you really are being charged by the number of newline characters in your
code you could write:
wlist = list('The quick brown fox')
vowels = 'aeiuo'
cons = []
vees = [ c for c in wlist if c in vowels or cons.append(c) ]
cons
['T', 'h', ' ', 'q', 'c', 'k', ' ', 'b', 'r', 'w', 'n', ' ', 'f', 'x']
vees
['e', 'u', 'i', 'o', 'o']
cons = []
vees = [ c for c in wlist[::-1] if c in vowels or cons.append(c) ]
cons
['x', 'f', ' ', 'n', 'w', 'r', 'b', ' ', 'k', 'c', 'q', ' ', 'h', 'T']
vees
['o', 'o', 'i', 'u', 'e']
but every penny you save writing a one liner will be tuppence extra on
maintenance.
--
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Re: SMTP help please
- Original Message - From: Martin Franklin [EMAIL PROTECTED] server.sendmail(fromaddr, toaddrs, msg) You can use this if you don't need to worry about whether the email was successfully sent to all recipients. Otherwise, you need something like this (untested and partly copied from an earlier post of mine). import smtplib try: s = smtplib.SMTP(outgoing_server) failed = s.sendmail(fromaddr, toaddrs, msg) except smtplib.SMTPRecipientsRefused, x : # All failed do something # for recip in x.recipients: info = x.recipients[recip] except smtplib.SMTPDataError, x: # email failed after data stage do something # x[0], x[1] except smtplib.SMTPSenderRefused, x : # the sender was refused do something # x.sender, x.smtp_code, x.smtp_error except: do something try: s.close() except pass for recip in failed: do something -- (failed contains a list of failed recipients if *some* but not all failed, if all failed then use : except smtplib.SMTPRecipientsRefused, x :) -- http://mail.python.org/mailman/listinfo/python-list
Re: reg php.ini equivalent file in python
I think it depends on your os variables -- http://mail.python.org/mailman/listinfo/python-list
Re: SMTP help please
- Original Message - From: Tim Williams [EMAIL PROTECTED] try: s.close() except pass Typo!! That should be s.quit() not s.close() :) -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about Object Oriented + functions/global vars?
flamesrock wrote:
ok, so to my knowledge, object oriented means splitting something into
the simplest number of parts and going from there.
So you may want to refine your knowledge. What you're talking about is
top-down functional decomposition, and it's almost the opposite of OO.
overly-simplified
OO is about interacting objects. An object is defined by an identity, a
state, a behaviour, and (even if implicitely) an interface. Objects do
interact by sending messages to each others. The interface of a given
object is the list of *what* messages this object understands (ie: can
respond to). The behavior is defined by *how* a given object responds to
messages (different objects can respond differently to the same message,
and a given object may respond differently to the same message according
to it's current state). The state is made up of the object's internals
vars.
/overly-simplified
But the question is-
when is it enough?
For example I have the following code:
#def put_file(file_id, delete=False):
# Function to put the file on the FTP Server
#
#print [+file_id+] FTP for this file started
#print [ + file_id + ] Connecting to machine + global_addr
Where does this 'global_addr' var come from ?
#ftp_pool = FTP_pool(file_id,1,40,global_uid,global_pwd)
idem for global_uid and global_pwd. And what are those magic numbers 1
and 40 ?
#print 'in put_file'
#try:
#ftp = ftplib.FTP(global_addr)
#ftp.login(global_uid, global_pwd)
#print ftp.getwelcome() +'\n'
#ftp.cwd(global_ftp_loc)
#ext = os.path.splitext(file_id)[1]
#if ext not in (.sc4, .snpickle):
#ftp.storlines(STOR + file_id, open(file_id))
#else:
#ftp.storbinary(STOR + file_id, open(file_id, rb), 1024)
#ftp.quit()
#ftp_pool.close_all()
#except:
Take care of too-large-except-clause. Here it's ok since you re-raise
the exception, but this is usually a bad practice to not specify the
exception class(es) you want to catch. Hint: sys.exit() works by raising
SystemExit.
#ftp_pool.close_all()
#print [ + file_id + ]Unable to access FTP location
#print [ + file_id + ]Error: + str(sys.exc_info()[0]) +
+ str(sys.exc_info()[1])
#upload_status[file_id] = FAILED
Where does this upload_status comes from ?
#raise
#else:
#print [ + file_id + ] FTP for file completed
#upload_status[file_id] = SUCCESS
would the lines with '#' best be split up into a seperate function,
for example:
#def upload(ftp, file):
dont use 'file', it shadows the builtin file class.
#ext = os.path.splitext(file)[1]
#if ext in (.txt, .htm, .html):
#ftp.storlines(STOR + file, open(file))
#else:
#ftp.storbinary(STOR + file, open(file, rb), 1024)
Nope.
IMHO The calling code should not have to worry about this. This should
be a responsability of some object(s) abstracting the file, and should
be implemented as different behaviors (using text or binary) in response
to the same message./IMHO In short, this could look like:
the_file = FtpFileDescriptor(path)
try:
# the_file objects knows if it must use text or binary.
# we, as client, just don't care about this gory detail.
the_file.store()
except MyFtpUploadError, e:
# TODO
pass
and then doing the call 'upload(file_id)', or is it a better practice
to leave things the way they were? I'm confused.
Finally, is it considered 'un-object-oriented' in python to have
functions inside a module that are called by objects (ie the upload
function above) and/or use global variables in combination?
disgression
In Python, everything's an object (well... almost everything). At
runtime, a module is an object :
ftplib
module 'ftplib' from '/usr/lib/python2.3/ftplib.pyc'
ftplib.__class__
type 'module'
ftplib.__class__.__name__
'module'
module-level 'functions' are methods of the given module object, and
'global' vars (the term 'global' is somewhat misleading, since it reaaly
means 'module-level') are attributes of the module object.
/disgression
Now what makes the difference between OO and non-OO is not the use of
classes, objects etc, but how you *design* your program. Your code
snippet makes use of OO features (classes, objects etc), but is typical
of procedural style. Not because you use 'module-level' functions and
vars, but because there's no abstraction, no separation of concerns and
responsabilities.
-thanks in advance
HTH (not sure, but...)
--
bruno desthuilliers
python -c print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in '[EMAIL PROTECTED]'.split('@')])
--
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Re: SMTP help please
Tim Williams wrote: - Original Message - From: Tim Williams [EMAIL PROTECTED] try: s.close() except pass Typo!! That should be s.quit() not s.close() :) and perhaps put into a finally: Mart -- http://mail.python.org/mailman/listinfo/python-list
Re: help with sending mail in Program
Ivan Shevanski wrote:
Could someone send me a good tutorial for sending mail then? The one I
found is not what I'm looking for. Also please dont send me the stmp
definition cause i've looked at that enough.
Here is a module I use to send mail to myself using smtplib:
#!/usr/local/bin/python
''' Send mail to me '''
from smtplib import SMTP
def sendToMe(subject, body):
me = 'Kent Johnson [EMAIL PROTECTED]'
send(me, me, subject, body)
def send(frm, to, subject, body):
s = SMTP()
#s.set_debuglevel(1)
s.connect('mail.mycompany.com')
s.ehlo('10.0.3.160') # IP address of my computer, I don't remember why I
needed this
msg = '''From: %s
Subject: %s
To: %s
%s
''' % (frm, subject, to, body)
s.sendmail(frm, to, msg)
s.quit()
if __name__ == '__main__':
sendToMe('Testing', 'This is a test')
--
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Trouble Encoding
I'm using feedparser to parse the following: div class=indent textAdv: Termite Inspections! Jenny Moyer welcomes you to her HomeFinderResource.com TM A MUST See amp;hellip;/div I'm receiveing the following error when i try to print the feedparser parsing of the above text: UnicodeEncodeError: 'latin-1' codec can't encode character u'\u201c' in position 86: ordinal not in range(256) Why is this happening and where does the problem lie? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: reg php.ini equivalent file in python
praba kar wrote:
Dear All,
I have one doubt. Is there python.ini
file like php.ini in Php?
[EMAIL PROTECTED] ~ $ python -h
usage: python [option] ... [-c cmd | file | -] [arg] ...
(snip)
PYTHONSTARTUP: file executed on interactive startup (no default)
(snip)
I guess this is the closer thing.
Actually php.ini file controls many aspects of
PHP's behavior. The following details of php.ini
will explain about it.
max_execution_time = 5000 ; Maximum execution time
of each script, in seconds (UNIX only)
memory_limit = 134217728; Maximum amount of
memory a script may consume (128MB)
post_max_size = 67108864; Maximum POST-Content
length (64MB)
All those settings are somewhat web-specific, and would not have much
meaning in most Python usages.
If I want to update the above details in Python where
I need to change these things in Python
This (if possible) depends on the web developpement solution you use
(cgi, mod_python, CherryPy, Webware, Zope, other...).
--
bruno desthuilliers
python -c print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in '[EMAIL PROTECTED]'.split('@')])
--
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Re: Trouble Encoding
[EMAIL PROTECTED] wrote:
I'm using feedparser to parse the following:
div class=indent textAdv: Termite Inspections! Jenny Moyer welcomes
you to her HomeFinderResource.com TM A MUST See amp;hellip;/div
I'm receiveing the following error when i try to print the feedparser
parsing of the above text:
UnicodeEncodeError: 'latin-1' codec can't encode character u'\u201c' in
position 86: ordinal not in range(256)
Why is this happening and where does the problem lie?
it seems that the unicode character 0x201c isn't part
of the latin-1 charset, see:
LEFT DOUBLE QUOTATION MARK
http://www.fileformat.info/info/unicode/char/201c/index.htm
try to encode the feedparser output to UTF-8 instead, or
use the replace option for the encode() method.
c = u'\u201c'
c
u'\u201c'
c.encode('utf-8')
'\xe2\x80\x9c'
print c.encode('utf-8')
ok, let's try replace
c.encode('latin-1', 'replace')
'?'
using replace will not throw an error, but it will replace
the offending characther with a question mark.
HTH.
--
deelan http://www.deelan.com/
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Re: how to show simulation at web
If your problem is plotting graphics from numerical simulations perhaps this
fragment of code from my learning python and mod_python may help you.
def show(req):
req.content_type=image/png
put,get=os.popen4('echo set term png size 400,400 ; set out ;
splot(sin(x)*cos(y)) | gnuplot')
img=get.read()
req.write(img)
put.close()
get.close()
return apache.OK
I feel there must be an easier, more elegant and performant method of doing
this.
On Monday 06 June 2005 10:57, Hallo (Ha) wrote:
hi all,
I have tried making a simulation with python. I want it to be shown at
a web. It is ok when I run it. so, I decided using cgi. but, when I try
it using a web browser it doesn't work.
Is it problem in the header or something else ?
If there are any suggestions about this problem, I will be very happy.
thanks
pgp2aS6AwfS6H.pgp
Description: PGP signature
--
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Create our own python source repository
Hi all, beeing almost a newbie, I am trying to learn from experts. For that reason I am collecting examples of Python sources (and Pythonic way of programming...) on a CD, ready to be searched. By now, I extracted from web (using wget) all the examples of Cookbook Python (35 Mb!). After some polishing and merging I obtained 20 files (one for each Category), which sum up to 12 Mb). To this source repository, I want also add my own scripts. But since my programming habits are not very Pythonic, I should prefer to include more meaningful examples. In the web there is plenty of such material, but I need the advice of experts to address me in the right direction... Bye. -- http://mail.python.org/mailman/listinfo/python-list
Re: file permissions on windows XP (home)
barney wrote (having trouble with a file): [snip] IOError: [Errno 13] Permission denied: 02 - New Year's Day.mp3 [snip] I'm at a loss to understand what is going on. Why is python returing True from os.access? Why isn't chmod doing anything? Check your results using os.stat() after doing that, perhaps? If it shows the right values for the permissions, then clearly the problem has nothing to do with Python per se, or your own code. Why is cygwin able to sort the problem out? I suggest (a) trying again, making sure that the file is not in use in another application such as the Media Player, and (b) trying with some other file that you've just created for the purpose of testing this to compare your results. I just tried the whole sequence you showed without any problems, on a file called test that I created in my own My Music folder. (Not using cygwin, however, since I don't use it, but in this case there was no need for me to use it anyway.) -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: separate IE instances?
Chris Curvey wrote: Bummer. No change at all. (In fact, I can't even call Navigate() without throwing an error). I'm on win2k, if that makes any difference. I could be way off, but isn't windows one of those OS's that doesn't allow you to have two instances of IEXPORE.EXE running IOW the OS is preventing you from running two instances of this executable. Someone with a lot more knowledge of windows internals will I'm sure come along and correct me ;-) Mart -- http://mail.python.org/mailman/listinfo/python-list
Re: If - Or statements
Steven Bethard wrote:
bruno modulix wrote:
(snip)
ext = os.path.splitext(filename)
Check the docs[1]. This should probably read:
_, ext = os.path.splitext(filename)
Of course. Au temps pour moi.
--
bruno desthuilliers
python -c print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in '[EMAIL PROTECTED]'.split('@')])
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Re: SMTP help please
I have found that the SmtpWriter class hides all the complexity in creating emails like you want to send. Check it out here: http://motion.sourceforge.net/related/send_jpg.py HTH, Larry Bates Syscon, Inc. Ivan Shevanski wrote: I really can't figure out anything about the SMTP module. . .I think I'm in over my head( Im pretty new to python). Can someone show me a really(and I mean REALLY) basic tutorial for smtp or explain it? program: I want to make my program have a feedback form attached to it at the end which sends me the form when they're done. I don't especially want them to have to input all the needed details though. . .Just thought I'd put this in so you'd know what its for. -Ivan _ Dont just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/ -- http://mail.python.org/mailman/listinfo/python-list
how to export data from ZODB to text files
Hi All, I looking for help with ZODB data export to text file. I have file Data.fs (file becomes from Plone CMS) and I have to display content structure, data like intro, body of article, etc and save it in to simple file. However I can't use Plone XML export because is broken, Zope Corp. set low priority for this bug, so I have to find other way how to digg in to data. Could you point me in to some Python code examples, code contributions and so on. Thank you for any suggestions, Lukasz -- http://mail.python.org/mailman/listinfo/python-list
Re: file permissions on windows XP (home)
Peter Hansen wrote: Why is python returing True from os.access? Why isn't chmod doing anything? Check your results using os.stat() after doing that, perhaps? If it shows the right values for the permissions, then clearly the problem has nothing to do with Python per se, or your own code. And also remember that in windows the mode in os.chmod and os.stat is only loosely related to the actual permissions on the file. In particular there is a 'readonly' flag which is separate from whether any particular user or group has write access. The only way to tell whether you have access to a file in windows really is to try to open it and handle the exception. Try using the properties panel, or the windows CACLS to display the security permissions on the file. If you start with a plain file, then you and administrators probably have full access (CACLS will display 'your username:F'). If you use Python to set an access mode, it simply tries to toggle the attributes on the file itself. If you use Cygwin's chmod it will mess about with the security permissions in an attempt to get as close to the Unix file mode as it can, so your nice simple 'F' mode might become something truly horrendous: Before: C:\tempcacls testfile.txt C:\temp\testfile.txt BUILTIN\Administrators:F NT AUTHORITY\SYSTEM:F DELL5150\Duncan:F BUILTIN\Users:R C:\temp\cygwin\bin\chmod 744 testfile.txt C:\tempcacls testfile.txt C:\temp\testfile.txt DELL5150\Duncan:(special access:) STANDARD_RIGHTS_ALL DELETE READ_CONTROL WRITE_DAC WRITE_OWNER SYNCHRONIZE STANDARD_RIGHTS_REQUIRED FILE_GENERIC_READ FILE_GENERIC_WRITE FILE_GENERIC_EXECUTE FILE_READ_DATA FILE_WRITE_DATA FILE_APPEND_DATA FILE_READ_EA FILE_WRITE_EA FILE_EXECUTE FILE_READ_ATTRIBUTES FILE_WRITE_ATTRIBUTES DELL5150\None:(special access:) READ_CONTROL SYNCHRONIZE FILE_GENERIC_READ FILE_READ_DATA FILE_READ_EA FILE_READ_ATTRIBUTES Everyone:(special access:) READ_CONTROL SYNCHRONIZE FILE_GENERIC_READ FILE_READ_DATA FILE_READ_EA FILE_READ_ATTRIBUTES BUILTIN\Administrators:F NT AUTHORITY\SYSTEM:F BUILTIN\Users:R -- http://mail.python.org/mailman/listinfo/python-list
Re: EnumKey vs EnumValue
Ok, this was not how I understood it to work earlier when I was going over this. I do want to eventually see the values under each key, so I guess if I want to see what is under each key I need to then reopen it and send that value to EnumValue. Tried that and ended up with this which seems to work: for i in range(25): try: regEndeca = EnumKey(regpath,i) print regEndeca regValue = OpenKey(HKEY_LOCAL_MACHINE, key + \\ + regEndeca) for j in range(25): try: regstr,value,type = EnumValue(regValue,j) print Value Name: , regstr, - Value: ,value, - Data: ,type except EnvironmentError: print There are, j,values under,regEndeca break print That was using EnumValue. except EnvironmentError: print There are, i,keys under,key break print That was using EnumKey. Thanks for the help -- http://mail.python.org/mailman/listinfo/python-list
How do I know when a thread quits?
Hi, I have used the low-level thread module to write a multi-threaded app. tid = thread.start_new_thread(process, ()) tid is an integer thread ident. the thread takes around 10 seconds to finish processing. Meanwhile the main thread finished execution and exits. This causes an error because the child thread tries to access something in the sys module which has already been GC'ed. I want a reliable way of knowing when the child thread finished execution so that I can make the main thread wait till then. Any ideas? TIA, Prashanth Ellina -- http://mail.python.org/mailman/listinfo/python-list
Re: How do I know when a thread quits?
Hi, I want a reliable way of knowing when the child thread finished execution so that I can make the main thread wait till then. Any ideas? use a lock. the subthread allocates the lock and releases it after processing. the main thread must wait until the lock is released. otherwiese, use the higher level Threading module which provides a function Thread.join that allows the main thread to wait for the subthread. I think it uses the same mechanism that I explained above. - harold - -- Outside of a dog, a book is a man's best friend: and inside a dog, it's too dark to read. -- Groucho Marx -- http://mail.python.org/mailman/listinfo/python-list
Re: how to export data from ZODB to text files
ls wrote: I looking for help with ZODB data export to text file. I have file Data.fs [snip] Could you point me in to some Python code examples, code contributions and so on. You can download the standalone ZODB code and run it under regular Python without Zope installed or involved, and use that to access your Data.fs file directly. See http://www.zope.org/Products/StandaloneZODB This page lists much documentation (near the bottom): http://www.zope.org/Wikis/ZODB/FrontPage -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: How do I know when a thread quits?
Prashanth Ellina wrote: I have used the low-level thread module to write a multi-threaded app. tid = thread.start_new_thread(process, ()) tid is an integer thread ident. the thread takes around 10 seconds to finish processing. Meanwhile the main thread finished execution and exits. This causes an error because the child thread tries to access something in the sys module which has already been GC'ed. I want a reliable way of knowing when the child thread finished execution so that I can make the main thread wait till then. Any ideas? Yes, use the higher level threading module and either the isAlive() call on the Thread object, or just call join() on it to make the main thread wait till it finishes. (By default the main thread will not exit until all threading Threads that aren't daemons have finished... maybe that's sufficient for your needs?) -Peter -- http://mail.python.org/mailman/listinfo/python-list
Dr. Dobb's Python-URL! - weekly Python news and links (Jun 7)
QOTW: [expletives deleted] - John Machin, snipping a section of Perl code. What sort of programmer are you? If it works on your computer, it's done, ship it! - Grant Edwards Guido invites us to comment on PEP 343. This Python Enhancement Proposal includes a 'with' statement, allowing you simply and reliably wrap a block of code with entry and exit code, in which resources can be acquired and released. It also proposes enhancements to simple generators, making them easy to use to build these wrappers: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/a9d9b591ca7b296d Timothy Smith would like to truncate a Decimal. It's not as easy as it sounds, but Raymond Hettinger has the definitive solution, as is so often the case: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/f40d2863110dc81e If you need to set Windows' environment variables persistently, Gigi's recipe is what you need: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/416087 EasyInstall, Phillip J. Eby's CPAN clone is ready to go: http://dirtsimple.org/2005/06/cpan-goodies-for-all.html How does one check if a given datetime is within a specified range? Andrew Dalke shows Maksim Kasimov how: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/e186c915a237c9a7 Robert Kern shows how to turn a CSV file into a list of dictionaries, and Peter Otten shows off a lovely iterator trick for turning adjacent list entries into dictionary elements: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/ed07b9f71724dcbd Ryan Tomayko defends the LAMP (Linux, Apache, MySQL, Python/Perl/PHP) platform: http://naeblis.cx/rtomayko/2005/05/28/ibm-poop-heads Skip Montanaro tells us why Emacs is the perfect IDE for him: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/6df813d2d8d187fb#8438e5f0d2352e5f O'Reilly has published a couple of interesting articles by Jeremy Jones, Python Standard Logging and Writing Google Desktop Search Plugins: http://www.onlamp.com/pub/a/python/2005/06/02/logging.html http://www.onlamp.com/pub/a/python/2005/06/01/kongulo.html How can you reliably eradicate data from a hard disk? Nuke the site from orbit; it's the only way to be sure. http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/2e73c88596c35427 Tomasz Bieruta shows us how to sort large files: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/415581 Google's new Sitemaps allow a Webmaster to tell Google what to spider. They provide a Python script to get you started: https://www.google.com/webmasters/sitemaps/docs/en/sitemap-generator.html Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Mygale is a news-gathering webcrawler that specializes in (new) World-Wide Web articles related to Python. http://www.awaretek.com/nowak/mygale.html While cosmetically similar, Mygale and the Daily Python-URL are utterly different in their technologies and generally in their results. For far, FAR more Python reading than any one mind should absorb, much of it quite interesting, several pages index much of the universe of Pybloggers. http://lowlife.jp/cgi-bin/moin.cgi/PythonProgrammersWeblog http://www.planetpython.org/ http://mechanicalcat.net/pyblagg.html comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/groups?oi=djqas_ugroup=comp.lang.python.announce Steve Bethard, Tim Lesher, and Tony Meyer continue the marvelous tradition early borne by Andrew Kuchling, Michael Hudson and Brett Cannon of intelligently summarizing action on the python-dev mailing list once every other week. http://www.python.org/dev/summary/ The Python Package Index catalogues packages. http://www.python.org/pypi/ The somewhat older Vaults of Parnassus ambitiously collects references to all sorts of Python resources. http://www.vex.net/~x/parnassus/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ The Python Business Forum further[s] the interests of companies that
RE: Dr. Dobb's Python-URL! - weekly Python news and links (Jun 7)
[Simon Brunning] | Subject: Dr. Dobb's Python-URL! - weekly Python news and links (Jun 7) [... snipped whole thing ...] Just wanted to say thank you to Simon and all the other people who have edited the Python-URL! weekly digest over the years. Despite my being a pretty much constant reader of c.l.py and various blogs and other on-line sources, I still look forward to to its weekly arrival. That's both because of the mild editorial introductions and also because it will almost certainly pick up something I've missed (sometimes because it's a gem buried deep within a thread which I've long since given up on!) Thanks, guys. TJG This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: reloading my own modules
Lowell import dbtest, util Lowell for module in ['dbtest', 'util']: Lowell if module in sys.modules.keys(): Lowell reload(sys.modules[module]) Lowell Is this the best way to do it? It seems a bit verbose, but not Lowell really all that bad. I was just wondering if there is a more Lowell standard way to do it? Not that I'm aware of. You don't need to request the keys() of a dict in recent versions of Python: import dbtest, util for module in ['dbtest', 'util']: if module in sys.modules: reload(sys.modules[module]) Also, since it's clear you have already imported dbtest and util, there's no need to check in sys.modules: import dbtest, util reload(dbtest) reload(util) Skip -- http://mail.python.org/mailman/listinfo/python-list
Re: How do I know when a thread quits?
we had some off-group mails. A summary is posted to improve the knowledge base of the list. Prashanth wrote: Hi, I can use the threading module but I am just looking if there is a reliable way using the thread module. If I use a lock... Let us assume that the child thread has done a lck.release() but does not get a chance to quit before execution is whisked away from it and given to the main thread. Now the main thread sees that the lock has been released and quits. The child thread hasn't quit yet and we are back in the same problem. Don't you think? Harold wrote: I think it depends on when you release the child lock. if you do it after refering to any data, e.g. as the last command in the child thread, you should be on the save side, no? - harold - Yes, I can assume that in most cases. However I don't think it happens so always. Even though infinitesimal, there is still a chance that it will not quit. I am looking for a mechanism using which I can make sure. I don't understand what you mean. Why should the following code fail in any case? import thread def parentThread() : lock = thread.allocate_lock() child = thread.start_new_thread(childThread,(parent,)) lock.acquire() def childThread(parent) : parent.lock.acquire() do_something_with_vars_from(parent) parent.lock.release() # don't do anything with parents vars after releasing the lock I did not test it, but I cannot see any reason why this should fail. After the childThread executes parent.lock.release() execution may be taken away from it and given to the parent thread(note that the child thread hasn't quit yet). The parent thread which is waiting on the lock gets released and quits. Now the still running child thread tries to exit and based on my assumption attempts to call some cleanup func in some module which has been GC'ed due to the exit of the parent thread. This leads to an exception being thrown. o.k. with this assumption, things might become a little more tricky. one possibility: bind the modules you use to local variables in your child thread. then they won't be GC'ed before childThread stops. or (better): use Threading. it really isn't complicated to change your code and timing issues become much simpler. Referencing the module locally on the child thread does not seem like an elegant solution besides I don't know which modules are involved in cleaning up. Yes, I will use the Threading module but am just curious as to what can be done to reliably use thread module. -- http://mail.python.org/mailman/listinfo/python-list
redirecting messgaef from sys.stdout
Hello, Im trying to run an external program in my application. Both are coded in python. I need to write an independent module that is used in the main application. Its responsibility is to run the external program and redirect its stdout and stderr to the main application. The applications stdout and stderr are set to an object and they are not command prompt anymore. The output is selected by a flag; if true the stdout and stderr will be redirected to applications stdout and stderr. If false, the stdout and stderr will be redirected o command prompt. I dont know how to redirect the output. Can anyone help please? Regards, Ahmad Hosseinzadeh __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- http://mail.python.org/mailman/listinfo/python-list
re:how to export data from ZODB to text files
Hi Peter,
Thank you for your reply. I already can access file using code
from ZODB import FileStorage, DB
storage =
FileStorage.FileStorage('mydatabase.fs')
db = DB(storage)
connection = db.open()
root = connection.root()
But this is the point where my konwledge ends since I`m not a Python
programmer.
I don`t know what is the structure of ZODB, I`m just looking for code,
or some tool, which I can use to export data from Data.ts file to
plain text file.
I`m looking for easiest way to export data from ZODB and put it to
MySQL later.
Do you know what way I should choose? I have to know Python language
to finish this task?
--
Lukasz
--
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Re: redirecting messgaef from sys.stdout
On 07.06.2005, at 16:43, Ahmad Hosseinzadeh wrote: Hello, Im trying to run an external program in my application. Both are coded in python. I need to write an independent module that is used in the main application. Its responsibility is to run the external program and redirect its stdout and stderr to the main application. The applications stdout and stderr are set to an object and they are not command prompt anymore. The output is selected by a flag; if true the stdout and stderr will be redirected to applications stdout and stderr. If false, the stdout and stderr will be redirected o command prompt. I dont know how to redirect the output. Can anyone help please? have a look at: http://www.python.org/doc/current/lib/module-popen2.html -- Je me suis enferm dans mon amour -- je rve. -- Paul Eluard -- http://mail.python.org/mailman/listinfo/python-list
Re: Create our own python source repository
I'm not entirely sure what the point of your exercise is - if you have access to the net, ,why do you want to collate code examples? They are frequently updated in the cookbook so an offline repository would quickly become out of date. However you've aroused my interest in something related. We all know Python is significantly easier for novice programmers to grasp than, say, Java - I too am a newbie who started at uni with java and wished I hadn't. Tutorials are great, self paced learning is great, BUT, for the complete beginner a well structured, offline course with examples, exercises, tips etc. would be a brilliant resource. Python would fit the bill as a demonstration language to teach Object Orientation, flow control statements, other common constructs etc. A quick canvas of some IT teachers I know indicates support for such a thing - perhaps even in secondary shools (pre-uni). What does everyone think it would take to start such a project, and distribute it? or has it been done already? -- http://mail.python.org/mailman/listinfo/python-list
ANN: ActivePython 2.4.1 for Mac OS X is now available!
Today ActiveState is announcing support for Mac OS X. I'm happy to announce that ActivePython 2.4.1 for Mac OS X is now available for free download from: http://www.ActiveState.com/Products/ActivePython/ This brings the number of free ActivePython platforms to four -- with the existing Linux, Solaris and Windows free downloads. Meanwhile, some of you may be interested to know that we are busily working on bringing Komodo to Mac OS X. We expect to offer a beta in August and release later this year. To keep up-to-date with our Mac OS X progress, betas and announcements, we invite you to join our new mailing list: [EMAIL PROTECTED] You can join the OS X announce list on the ActiveState Programmer Network (ASPN): http://listserv.activestate.com/mailman/listinfo/osx-announce What is ActivePython? - ActivePython is ActiveState's quality-assured binary distribution of Python. Builds for Linux, Mac OS X, Solaris and Windows are made freely available. ActivePython includes the Python core and core extensions (zlib 1.2.1, bzip2 1.0.2, bsddb 4.2.52, Tk 8.4.9, and Tix 8.1.4) and is fully compatible with other Python distributions of the same version. ActivePython also includes a wealth of Python documentation, including: - the core Python docs; - Andrew Kuchling's What's New in Python series; - the Non-Programmer's Tutorial for Python; - Mark Pilgrim's excellent Dive into Python; and - a snapshot of the Python FAQs, HOWTOs and PEPs. Once installed on the Mac, you can find the ActivePython documentation here: /Library/Documentation/Help/ActivePython 2.4 Help/index.html An online version of the docs can be found here: http://aspn.activestate.com/ASPN/docs/ActivePython/2.4/welcome.html Thanks, and enjoy! Trent, Python Tech Lead -- Trent Mick [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Embedding Python in Multi-threading App. Any Guidelines, Hints, Recipes ??
Hi, I am embedding Python into a multi-threaded application running on Solaris. Python will enable end users to customize and re-program many aspects of the application. I expect that the C++ application will be natively multi-threaded and will embed multiple Python sub-interpreters. Called Python scripts may in turn call back into the C++ application via SWIG wrappers of C++ objects. I need advice and/or pointers to relevant documentation on the subject if available please. In particular, I need advice on the necessary housekeeping (set/reset of GIL, PyThreadStates, PyInterpreterStates etc etc) to invoke a sub-interpreter from a native thread. A native thread may call a number of sub-interpreters in sequence or recursively (due to call backs) and I cannot find specific information on this subject area. Many thanks in advance. Alan -- http://mail.python.org/mailman/listinfo/python-list
Re: anygui,anydb, any opinions?
James Tanis [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Previously, on Jun 6, Thomas Bartkus said: # James Tanis [EMAIL PROTECTED] wrote in message # news:[EMAIL PROTECTED] # # # My 2 cents, I'm much more productive with Python and QT Builder as I # am with VB and those aren't nearly as intergrated as VB's GUI/IDE. A # language's productivity, I believe, rests on how high or low-level the # language and its libraries are. Not just that though, productivity is # also very much affected by the breadth of the libraries available. # # When scripting, Windows or Linux, I also am much more productive with # Python. # When automating a process for another human being, I am much more productive # with a RAD tool like VB. The effort involved in creating the user front end # simply overwhelms all the considerable efficiencies of Python. # # When I code wxPython, I find I want to use VB to create/model my user # interface. Once I prototype my Windows (Frames!) using VB, I can then xlate # this to wxPython code. What I couldn't do without the VB IDE was visualize # and experiment with the impact of various layouts *before* I lay down code. # It is simply too onerous to experiment by code manipulation and too easy to # swish around visually with a mouse. # # When I use a GUI designer like wxGlade, I still find it awkward enough to # merit prototyping with the VB IDE and then mimic the windows I create with # wxGlade. # # Sure, GUI RAD solutions increase development in a very real way, but you # can find an offering for just about every language out there these days. # # Yes. But the tools available for Python are still primitive compared to RAD # tools like Delphi/Visual Studio. I still don't know enough wxPython to # understand what the barriers are to creating a RAD visual design and # construction tool similar to the Visual Studio environment. # My ravings here are simply the result of a suspicion - # # - The suspicion is that the only barrier is the Python (and Linux!) # communities grossly underestimating the value of such an undertaking. # Thomas Bartkus # Hmm, it's not that simple though. Unfortunately efforts get spread among the various projects, wxPython is only one among many. I realize that. And I wouldn't consider it unfortunate that efforts are spread amongs various projects. It adds richness to the whole environment but, yes, it does dilute efforts. You seem set on wxPython, ... The attractiveness of wxPython here is that it extends the platform neutrality of Python to GUI interfaces. On a Windows platform, the work looks like any other Windows program. On Gnome/Linux, the identical code fits right into the Gnome desktop scheme. *Big* plus. But stuck? There is so much going, there is so little time, and I wallow in ignorance. Justification for my ravings is to coax out the experience of others. One can't help feeling that one is missing something important simply because there isn't the time to evaluate everything in depth. And much of this stuff *needs* to be examined in depth to give it a fair shot. What neat things am I missing and should be looking at ? ... and its true, RAD projects based around that toolkit still seem to be in alpha/beta stages, but that does not go for all the toolkits. There are no barriers that I know of, but your comparing an application (vb) that has been 11+ years with one (wxglade) that has been around what.. maybe three years? Yes. And I'm sorry to sound like I was complaining (but I was :-) I'm here because MS is well along it's declining years and I've jumped off the .NET bandwagon. New/wonderful things are no longer forthcoming from that world. They are in Linux/Python. Thomas Bartkus -- http://mail.python.org/mailman/listinfo/python-list
Re: If - Or statements
What about:
if True in [thefile.endswith(x) for x in
('mp3','mp4','ogg','aac','wma')]:
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Dr. Dobb's Python-URL! - weekly Python news and links (Jun 7)
QOTW: [expletives deleted] - John Machin, snipping a section of Perl code. What sort of programmer are you? If it works on your computer, it's done, ship it! - Grant Edwards Guido invites us to comment on PEP 343. This Python Enhancement Proposal includes a 'with' statement, allowing you simply and reliably wrap a block of code with entry and exit code, in which resources can be acquired and released. It also proposes enhancements to simple generators, making them easy to use to build these wrappers: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/a9d9b591ca7b296d Timothy Smith would like to truncate a Decimal. It's not as easy as it sounds, but Raymond Hettinger has the definitive solution, as is so often the case: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/f40d2863110dc81e If you need to set Windows' environment variables persistently, Gigi's recipe is what you need: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/416087 EasyInstall, Phillip J. Eby's CPAN clone is ready to go: http://dirtsimple.org/2005/06/cpan-goodies-for-all.html How does one check if a given datetime is within a specified range? Andrew Dalke shows Maksim Kasimov how: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/e186c915a237c9a7 Robert Kern shows how to turn a CSV file into a list of dictionaries, and Peter Otten shows off a lovely iterator trick for turning adjacent list entries into dictionary elements: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/ed07b9f71724dcbd Ryan Tomayko defends the LAMP (Linux, Apache, MySQL, Python/Perl/PHP) platform: http://naeblis.cx/rtomayko/2005/05/28/ibm-poop-heads Skip Montanaro tells us why Emacs is the perfect IDE for him: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/6df813d2d8d187fb#8438e5f0d2352e5f O'Reilly has published a couple of interesting articles by Jeremy Jones, Python Standard Logging and Writing Google Desktop Search Plugins: http://www.onlamp.com/pub/a/python/2005/06/02/logging.html http://www.onlamp.com/pub/a/python/2005/06/01/kongulo.html How can you reliably eradicate data from a hard disk? Nuke the site from orbit; it's the only way to be sure. http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/2e73c88596c35427 Tomasz Bieruta shows us how to sort large files: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/415581 Google's new Sitemaps allow a Webmaster to tell Google what to spider. They provide a Python script to get you started: https://www.google.com/webmasters/sitemaps/docs/en/sitemap-generator.html Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Mygale is a news-gathering webcrawler that specializes in (new) World-Wide Web articles related to Python. http://www.awaretek.com/nowak/mygale.html While cosmetically similar, Mygale and the Daily Python-URL are utterly different in their technologies and generally in their results. For far, FAR more Python reading than any one mind should absorb, much of it quite interesting, several pages index much of the universe of Pybloggers. http://lowlife.jp/cgi-bin/moin.cgi/PythonProgrammersWeblog http://www.planetpython.org/ http://mechanicalcat.net/pyblagg.html comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/groups?oi=djqas_ugroup=comp.lang.python.announce Steve Bethard, Tim Lesher, and Tony Meyer continue the marvelous tradition early borne by Andrew Kuchling, Michael Hudson and Brett Cannon of intelligently summarizing action on the python-dev mailing list once every other week. http://www.python.org/dev/summary/ The Python Package Index catalogues packages. http://www.python.org/pypi/ The somewhat older Vaults of Parnassus ambitiously collects references to all sorts of Python resources. http://www.vex.net/~x/parnassus/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ The Python Business Forum further[s] the interests of companies that
School Administration Software
Hello- I just picked up my daughters' report cards for the year (they did well, thank-you) and was approached by the school administrator about writing an Acess application to help track attendance for next year (excused/unexcused, after so many unexcused absences a letter will be generated, etc.). Since I have a feel for how large this request will become, I googled for school administration software on the Python site and was pleased to get 312 hits. There's software out there but -- alas -- it's difficult to tell what is being used, what people think, what's being maintained, etc. So...do any of you have experience with any of this software? This is for a small (~400 students k-12), private school that is not swimming in taxpayer dollars and I would rather use Open Source because we will probably need to customize some reports, etc. Any advice you have would be welcome. Thanks, --greg -- Greg Lindstrom 501 975.4859 (office) Senior Programmer501 219-4455 (fax) NovaSys Health [EMAIL PROTECTED] Little Rock, Arkansas We are the music makers, and we are the dreamers of dreams. W.W. -- http://mail.python.org/mailman/listinfo/python-list
time consuming loops over lists
X-No-Archive: yes Can some one help me improve this block of code...this jus converts the list of data into tokens based on the range it falls into...but it takes a long time.Can someone tell me what can i change to improve it... def Tkz(tk,data): no_of_bins = 10 tkns = [] dmax = max(data)+1 dmin = min(data) rng = ceil(abs((dmax - dmin)/(no_of_bins*1.0))) rngs = zeros(no_of_bins+1) for i in xrange(no_of_bins+1): rngs[i] = dmin + (rng*i) for i in xrange(len(data)): for j in xrange(len(rngs)-1): if data[i] in xrange(rngs[j],rngs[j+1]): tkns.append( str(tk)+str(j) ) return tkns -- http://mail.python.org/mailman/listinfo/python-list
Re: time consuming loops over lists
[EMAIL PROTECTED] wrote:
X-No-Archive: yes
Can some one help me improve this block of code...this jus converts the
list of data into tokens based on the range it falls into...but it
takes a long time.Can someone tell me what can i change to improve
it...
if data[i] in xrange(rngs[j],rngs[j+1]):
That's a bummer: You create a list and then search linearily in in -
where all you want to know is
if rngs[j] = data[i] rngs[j+1]
Attached is a script that does contain your old and my enhanced version
- and shows that the results are equal. Running only your version takes
~35s, where mine uses ~1s!!!
Another optimization im too lazy now would be to do sort of a tree
search of data[i] in rngs - as the ranges are ordered, you could find
the proper one in log_2(len(rngs)) instead of len(rngs)/2.
Additional improvements can be achieved when data is sorted - but that
depends on your application and actually sizes of data.
Diez
from math import *
from Numeric import *
from random import *
def Tkz2(tk,data):
no_of_bins = 10
tkns = []
dmax = max(data)+1
dmin = min(data)
rng = ceil(abs((dmax - dmin)/(no_of_bins*1.0)))
rngs = zeros(no_of_bins+1)
for i in xrange(no_of_bins+1):
rngs[i] = dmin + (rng*i)
for i in xrange(len(data)):
for j in xrange(len(rngs)-1):
if rngs[j] = data[i] rngs[j+1]:
tkns.append( str(tk)+str(j) )
return tkns
def Tkz(tk,data):
no_of_bins = 10
tkns = []
dmax = max(data)+1
dmin = min(data)
rng = ceil(abs((dmax - dmin)/(no_of_bins*1.0)))
rngs = zeros(no_of_bins+1)
for i in xrange(no_of_bins+1):
rngs[i] = dmin + (rng*i)
for i in xrange(len(data)):
for j in xrange(len(rngs)-1):
if data[i] in xrange(rngs[j], rngs[j+1]):
tkns.append( str(tk)+str(j) )
return tkns
data = range(20,12312)
shuffle(data)
res1 = Tkz('A', data)
res2 = Tkz2('A', data)
print res1 == res2
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Re: How do I know when a thread quits?
I'm no threads expert, but if you use the higher-level threading module, you could try something like this: import threading import time def countToTen(): for i in range(1,11): print i time.sleep(0.5) child = threading.Thread(target=countToTen) class masterThread(threading.Thread): def run(self): print Master Started child.start() while child.isAlive(): time.sleep(0.1) print Master Finished master = masterThread() master.start() ---SCRIPT OUTPUT-- Master Started 1 2 3 4 5 6 7 8 9 10 Master Finished Hope this helps. Christian http://www.dowski.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading a CSV file into a list of dictionaries
Sounds like you want to use the ConfigObject module.
http://www.voidspace.org.uk/python/modules.shtml#configobj
-dave
RFQ [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Hi, I'm struggling here to do the following with any success:
I have a comma delimited file where each line in the file is something
like:
PNumber,3056,Contractor,XYZ Contracting,Architect,ABC Architects,...
So each line is intended to be: key1,value1,key2,value2,key3,value3...
and each line is to be variable in length (although it will have to be
an even number of records so that each key has a value).
I want to read in this csv file and parse it into a list of
dictionaries. So each record in the list is a dictionary:
{PNumber:3056,Contractor:XYZ Contracting, ... }
I have no problem reading in the CSV file to a list and splitting each
line in the file into its comma separated values. But I can't figure
out how to parse each resulting list into a dictionary.
Any help on this?
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Re: time consuming loops over lists
wow i dint know that a single statement like that would make such a difference. Thanks you very much. that really improves the performance -- http://mail.python.org/mailman/listinfo/python-list
Re: time consuming loops over lists
[EMAIL PROTECTED] wrote: Can some one help me improve this block of code...this jus converts the list of data into tokens based on the range it falls into...but it takes a long time.Can someone tell me what can i change to improve it... def Tkz(tk,data): no_of_bins = 10 tkns = [] dmax = max(data)+1 dmin = min(data) rng = ceil(abs((dmax - dmin)/(no_of_bins*1.0))) rngs = zeros(no_of_bins+1) for i in xrange(no_of_bins+1): rngs[i] = dmin + (rng*i) for i in xrange(len(data)): for j in xrange(len(rngs)-1): if data[i] in xrange(rngs[j],rngs[j+1]): tkns.append( str(tk)+str(j) ) return tkns Use bisect(), e. g., with a slightly modified function signature: from __future__ import division import bisect from math import ceil def tkz(tk, data, no_of_bins=10): dmax = max(data) + 1 dmin = min(data) rng = ceil((dmax - dmin)/no_of_bins) rngs = [dmin + rng*i for i in xrange(1, no_of_bins+1)] tokens = [tk + str(i) for i in xrange(no_of_bins)] return [tokens[bisect.bisect(rngs, v)] for v in data] if __name__ == __main__: print tkz(token_, [5, 7, 8, 9, 70, 200]) What are the tokens for, by the way? I'd recommend using the indices directly if possible. Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: School Administration Software
Greg Lindstrom wrote: Hello- [snip] So...do any of you have experience with any of this software? This is for a small (~400 students k-12), private school that is not swimming in taxpayer dollars and I would rather use Open Source because we will probably need to customize some reports, etc. Any advice you have would be welcome. Thanks, --greg -- Greg Lindstrom 501 975.4859 (office) Senior Programmer501 219-4455 (fax) NovaSys Health [EMAIL PROTECTED] Little Rock, Arkansas Schooltool ? http://www.schooltool.org/ We are the music makers, and we are the dreamers of dreams. W.W. -- http://mail.python.org/mailman/listinfo/python-list
xmlrpclib - methodHelp doesn't work
I tried out the examples in this website for XML-RPC using python - http://www.onlamp.com/pub/a/python/2000/11/22/xmlrpcclient.html?page=2 But I get the following errors when I try to execute the code. Here is the snippet of the code with the error messages. snip meerkatsvr.system.methodSignature(meerkat.getChannels) Traceback (most recent call last): File stdin, line 1, in ? NameError: name 'meerkat' is not defined meerkatsvr.system.methodHelp(meerkat.getItems) Traceback (most recent call last): File stdin, line 1, in ? NameError: name 'meerkat' is not defined /snip can someone tell me what is wrong. Also is there any good online resource for XML-RPC with Python. -- http://mail.python.org/mailman/listinfo/python-list
DB API 2.0 and transactions
Hi, Why is there no support for explicit transactions in the DB API? I mean like transaction() to start the trans and commit() and rollback() would end the trans or something. The reason why I ask is because I wrote a daemon that interacts with a Postgres DB. The value of CURRENT_TIMESTAMP according to Postgres is NOT the actual walltime, but the walltime when the current transaction started. This gets weird when using the Python DB API to interact with Postgres because a transaction gets started in 3 places: connection, commit, rollback. So consider the daemon: [pseudo code] connect # begin trans at 12:00 sleep waiting # lets say 15 mins wake up put entry in db using CURRENT_TIMESTAMP # oops [/code] Oops, the CURRENT_TIMESTAMP evaluates to 12:00, not 12:15. Now I know there are ways around this... 1) In Postgres, you can get the walltime and cast it to a timestamp. 2) In Python, you can just do an empty commit in order to manually start a new transaction. I just think its a bit weird because this bit me in the butt for quite a while and this didn't happen when doing the same thing in other langs. Anyone have any opinions on this? -- http://mail.python.org/mailman/listinfo/python-list
Re: xmlrpclib - methodHelp doesn't work
[EMAIL PROTECTED] wrote:
I tried out the examples in this website for XML-RPC using python -
http://www.onlamp.com/pub/a/python/2000/11/22/xmlrpcclient.html?page=2
But I get the following errors when I try to execute the code. Here is
the snippet of the code with the error messages.
meerkatsvr.system.methodSignature(meerkat.getChannels)
Traceback (most recent call last):
File stdin, line 1, in ?
NameError: name 'meerkat' is not defined
meerkatsvr.system.methodHelp(meerkat.getItems)
Traceback (most recent call last):
File stdin, line 1, in ?
NameError: name 'meerkat' is not defined
You have to give the method names as strings. Your code is looking for a
'getChannels' or 'getItems' attribute of something named 'meerkat', but there
is no such name in the current scope. Try this:
Type help, copyright, credits or license for more information.
import xmlrpclib
meerkatURI = http://www.oreillynet.com/meerkat/xml-rpc/server.php;
meerkatsvr = xmlrpclib.Server(meerkatURI)
meerkatsvr.system.listMethods()
['meerkat.getChannels', 'meerkat.getCategories',
'meerkat.getCategoriesBySubstring', 'meerkat.getChannelsByCategory',
'meerkat.getChannelsBySubstring', 'meerkat.getItems', 'system.listMethods',
'system.methodHelp', 'system.methodSignature']
print meerkatsvr.system.methodSignature('meerkat.getChannels')
[['array']]
print meerkatsvr.system.methodHelp('meerkat.getItems')
Returns an array of structs of RSS items given a recipe struct.
etc
Kent
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Re: What are OOP's Jargons and Complexities?
The Rise of Class Hierarchy Because of psychological push for purity, in Java there are no longer plain subroutines. Everything is a method of some class. Standard functions like opening a file, square root a number, for loop thru a list, if else branching statements, or simple arithmetic operations... must now somehow become a method of some class. In this way, coupled with the all-important need to manage data with inheritance, the OOP Class Hierarchy is born. Basic data types such as now the various classes of numbers, are now grouped into a Number class hierarchy, each class having their own set of methods. The characters, string or other data types, are lumped into one hierarchy class of data types. Many types of lists (variously known as arrays, vectors, lists, hashes...), are lumped into a one hierarchy, with each Classe node having its own set methods as appropriate. Math functions, are lumped into some math class hierarchy. Now suppose the plus operation +, where does it go? Should it become methods of the various classes under Number headings, or should it be methods of the Math class set? Each language deals with these issues differently. As a example, see this page for the hierarchy of Java's core language classes: http://java.sun.com/j2se/1.4.2/docs/api/java/lang/package-tree.html (local copy) OOP being inherently complex exacerbated by marketing propaganda, and the inheritance and hierarchy concept is so entangled in OOP, sometimes OOP is erroneously thought of as languages with a hierarchy. (there are now also so-called Object-Oriented databases that ride the fad of all data are trees ...) Normally in a program, when we want to do some operation we just call the subroutine on some data. Such as open(this_file) square(4) But now with the pure OOP style, there can no longer be just a number or this_file path, because everything now must be a Object. So, the this_file, usually being just a string representing the path to a file on the disk, is now some file object. Initiated by something like this_file = new File(path to file); where this file class has a bunch of methods such as reading or writing to it. see this page for the complexity of the IO tree http://java.sun.com/j2se/1.4.2/docs/api/java/io/package-tree.html (local copy) see this page for the documentation of the File class itself, along with its 40 or so methods and other things. http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html (local copy) --- to be continued... This is part of an installment of the article What are OOP's Jargons and Complexities by Xah Lee, 20050128. The full text is at http://xahlee.org/Periodic_dosage_dir/t2/oop.html Copyright 2005 by Xah Lee. Verbatim duplication of the complete article for non-profit purposes is granted. The article is published in the following newsgroups: comp.lang.c,comp.lang.c++,comp.lang.lisp,comp.unix.programmer comp.lang.python,comp.lang.perl.misc,comp.lang.scheme,comp.lang.java.programmer comp.lang.functional,comp.object,comp.software-eng,comp.software.patterns Xah [EMAIL PROTECTED] http://xahlee.org/ -- http://mail.python.org/mailman/listinfo/python-list
different time tuple format
hi all, sorry if i'm reposting why time.strptime and time.localtime returns tuple with different DST (9 item of the tuple)? is there some of setting to fix the problem? Python 2.2.3 (#1, May 31 2005, 11:33:52) [GCC 2.95.4 20020320 [FreeBSD]] on freebsd4 Type help, copyright, credits or license for more information. import time time.strptime(2005-06-07 21:00:00, %Y-%m-%d %H:%M:%S) (2005, 6, 7, 21, 0, 0, 6, 1, 0) time.localtime() (2005, 6, 7, 21, 2, 39, 1, 158, 1) -- Best regards, Maksim Kasimov mailto: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
How to call python functions from matlab?
PyMat enables to call matlab functions from python. But, what I want is to call python functions from matlab. Is there any library for it? Thanks. Daehyok Shin -- http://mail.python.org/mailman/listinfo/python-list
How to maintain scroll-region view while changing canvas size?
Please take a look at and run the code snippet shown below. It creates a canvas with vertical Horizontal scroll-bars. If you shrink the window to smaller than the area of the canvas, the scroll-bars work as advertised. That's great. However, if you click the Left Mouse button, it calls code which expands the width of the canvas by 100 pixels. The area being viewed expands correspondingly. BUT I DON'T WANT IT TO!! I want to know how to expand the size of a canvas without changing the area/size of what is currently shown by the scroll bars. I would like to find code that expands the width of the canvas and simply adjusts the H-Scrollbar without changing what is shown on in the area of the canvas being displayed. I have tried seemingly every combination of messing with the canvas.config and scrollregion parameters to no avail. Can someone out there show me how its done?? -Saqib - import Tkinter def _b1PressEvt(event): print B1 _canvas.config(width=300) tkRoot = Tkinter.Tk() _canvas = Tkinter.Canvas(tkRoot, background=white, width=200, height=200,) # Scroll Bars vScrollbar = Tkinter.Scrollbar(tkRoot) vScrollbar.pack(side=Tkinter.RIGHT, expand=True, fill=Tkinter.Y) hScrollbar = Tkinter.Scrollbar(tkRoot) hScrollbar.pack(side=Tkinter.BOTTOM, expand=True, fill=Tkinter.X) _canvas.config( width=200, height=200, scrollregion=(0,0,100,100), yscrollcommand=vScrollbar.set, xscrollcommand=hScrollbar.set, ) vScrollbar.config(orient=Tkinter.VERTICAL, command=_canvas.yview) hScrollbar.config(orient=Tkinter.HORIZONTAL, command=_canvas.xview) #tkRoot.pack() _canvas.pack(expand=Tkinter.NO) vScrollbar.pack(side=Tkinter.RIGHT, expand=True, fill=Tkinter.Y) hScrollbar.pack(side=Tkinter.BOTTOM, expand=True, fill=Tkinter.X) # Function Bindings _canvas.bind(Button-1, _b1PressEvt) tkRoot.mainloop() -- http://mail.python.org/mailman/listinfo/python-list
Re: Create our own python source repository
Hi Rob, thank you for your reply. I am further commenting on your doubts (I'm not entirely sure what the point of your exercise is) and on your proposal of a project for more structured tutorials. About the second item, I fully agree with you. I should be even more drastic: for a certain argument I'd prefer an application fully explained (also if not covering all the features) to a more general tutorial with only brief and unrelated code snippets. Unfortunately, that's not the way things are normally done, because it is much harder to build a useful application and fully comment it (also from the theoretical point of view, like, for example, OO or database management) As far as the 1st item is concerned, I know that Cookbook Python is frequently updated, but for my purposes also a freezed situation is OK, and grepping is much more useful than googling over the web. For that reason I want also add to the repository my examples of Python scripts, to build on already known tools. To give an example, the other day I wanted to use writelines() to save a list to a file. Having already used such a file method, but not remembering where and when, I was obliged to consult the Library Reference for the sintax and for the type of list instead of merely cutting and pasting from my code... Bye. -- http://mail.python.org/mailman/listinfo/python-list
Re: different time tuple format
http://docs.python.org/lib/module-time.html tells us the last element is the DST flag, on your computer that applies for localtime(). To get this with strptime() you have to tweak the %Z formatter - this is platform specific. -- http://mail.python.org/mailman/listinfo/python-list
Re: poker card game revisited (code included)
flupke wrote: i've included the code so people can take a look. I've tried to expand on the thread of 26/05/2005 on Checking for a full house. Code is suboptimal as I coded it rather quickly. I've added the normal classes one would expect from a cardgame: card, deck, hand etc. 1. I can detect most things except a straightflush. The problem with the code now is that it only returns 1 straight which is enough for mere straight detection but won't suffice for hand comparison and especially detecting straight flushes. For use in straight flush detection, the function would need to return all possible straights and then these would need to be checked to see if they are flushes. For instance a list [4,4,5,5,6,7,8] yields 4 different straights. A hand like [4,4,5,5,6,7,8,9] gets even worse. I can't see how i can do this using sets, i'll need to come up with another method since the suit is important. 2. Hand comparison. For this to succeed the getrank function would need to return the exact 5 cards that represent the highest hand. This could be less than 5 cards if one uses wildcards. Then you not only have the correct rank but also the highest hand so you can compare in case there are ties. It looks like you're not approaching this in a systematic manner. Algorithms for determining poker hands are already pretty well-known; there are several open source projects that do it efficiently which you could learn from. When you're evaluating poker hands, you're looking for three basic types of card groups: matches, straights, and flushes. The most efficient way to look for matches is with a histogram based on the card rank. Bin the cards up by rank, and then build a second histogram of the counts of those ranks indexing into a list of the ranks which had those cards (sorted by rank, so you can pull off the highest ones). Now determining all the rank-based hands is easy: quads have a hit with four matches, a boat has a hit with two three matches (there's no two trips so this is a boat at best) or both three and two matches, two pair has two hits with two matches, etc. Searching for straights and flushes is much better done by masks. Arrange all the possible cards in a huge masks based on both cards and ranks (easy to do in Python with the long type) and then build up rank masks that build up all possible straight combinations (sorted by the highest rank so you can search them in order), and then build up card mask ranks for each suit. For straights, just iterate through the straight rank masks and see if you find one that's fully occupied; if you do, that's a straight. For flushes, just iterate through the card suit masks and see if you find one that has more five or more unique cards in it. You need to iterate through all four and find the one with the highest value (for games with lots of cards, you could have two flushes; you want to count the highest one). Finally, to look for straight flushes, first apply the suit masks and then turn it into ranks and apply the straight masks. Then will all this information you can easily arrange the code to select the best existing hand. Note that these all use well-established techniques and reveal nothing secret. 3. x wild. For games like deuces wild, what would be the best way to manage those? I tought about removing them from a hand before shipping it of to the getrank function? I'll leave it up to you to try to figure out how to make a wild card algorithm. -- Erik Max Francis [EMAIL PROTECTED] http://www.alcyone.com/max/ San Jose, CA, USA 37 20 N 121 53 W AIM erikmaxfrancis Love is the selfishness of two persons. -- Antoine de la Salle -- http://mail.python.org/mailman/listinfo/python-list
Re: different time tuple format
Like the last poster said, use %Z. On my Mandriva Linux system I get the following results: time.localtime() (2005, 6, 7, 15, 7, 12, 1, 158, 1) time.strptime(2005-06-07 15:07:12 EDT, %Y-%m-%d %H:%M:%S %Z) (2005, 6, 7, 15, 7, 12, 1, 158, 1) Rick Maksim Kasimov wrote: hi all, sorry if i'm reposting why time.strptime and time.localtime returns tuple with different DST (9 item of the tuple)? is there some of setting to fix the problem? Python 2.2.3 (#1, May 31 2005, 11:33:52) [GCC 2.95.4 20020320 [FreeBSD]] on freebsd4 Type help, copyright, credits or license for more information. import time time.strptime(2005-06-07 21:00:00, %Y-%m-%d %H:%M:%S) (2005, 6, 7, 21, 0, 0, 6, 1, 0) time.localtime() (2005, 6, 7, 21, 2, 39, 1, 158, 1) -- http://mail.python.org/mailman/listinfo/python-list
Re: the python way?
Andrew Dalke wrote: Reinhold Birkenfeld wrote: To make it short, my version is: import random def reinterpolate2(word, vocals='aeiouy'): wlist = list(word) random.shuffle(wlist) vees = [c for c in wlist[::-1] if c in vocals] cons = [c for c in wlist[::-1] if c not in vocals] Why the [::-1]? If it's randomly shuffled the order isn't important. I wanted to keep compatibility with Groops' version so that I could test that my one works right. Since he did list.pop() it was necessary. short, long = sorted((cons, vees), key=len) return ''.join(long[i] + short[i] for i in range(len(short))) + ''.join(long[len(short):]) All the cool kids are using 2.4 these days. :) Yep, it's the best way to advertise for its cool features ;) Reinhold -- http://mail.python.org/mailman/listinfo/python-list
programmnig advise needed
Hi, I am writing a Python program that needs to read XML files and contruct a tree object from the XML file (using wxTree). The XML however is not an hiearchical XML file. It contains elements and association tags. The assiociation tags link the elements together. Example: element1 ... element 1 attributes /element1 element2 ... element 2 attributes /element2 element3 ... element 3 attributes /element3 association Nameelement1/Name Parentelement3/Parent /association association Nameelement2/Name Parentelement3/Parent /association In this case element3 is the parent of the two other elements. The XML files I receive often contain thousands of elements so the tree structure can be very large. Futhermore, the XML files are not 'sorted', like in the example above, the 'root' element object entry might be somewhere in the middle of the XML file. I don't really now to code this so any suggestions are welcome. With kind regards, Kris -- http://mail.python.org/mailman/listinfo/python-list
Re: DB API 2.0 and transactions
Christopher J. Bottaro [EMAIL PROTECTED] schrieb im Newsbeitrag news:[EMAIL PROTECTED] | Hi, | Why is there no support for explicit transactions in the DB API? I mean | like transaction() to start the trans and commit() and rollback() would end | the trans or something. | | The reason why I ask is because I wrote a daemon that interacts with a | Postgres DB. The value of CURRENT_TIMESTAMP according to Postgres is NOT | the actual walltime, but the walltime when the current transaction started. | | This gets weird when using the Python DB API to interact with Postgres | because a transaction gets started in 3 places: connection, commit, | rollback. | | So consider the daemon: | | [pseudo code] | connect # begin trans at 12:00 | sleep waiting # lets say 15 mins | wake up | put entry in db using CURRENT_TIMESTAMP # oops | [/code] | | Oops, the CURRENT_TIMESTAMP evaluates to 12:00, not 12:15. | | Now I know there are ways around this... | 1) In Postgres, you can get the walltime and cast it to a timestamp. | 2) In Python, you can just do an empty commit in order to manually start | a new transaction. | | I just think its a bit weird because this bit me in the butt for quite a | while and this didn't happen when doing the same thing in other langs. | | Anyone have any opinions on this? The described behavior seems to be totally in synch with expectations (both in accordance with PostgreSQL docs and the DB-API.) These other languages *must* be doing something wrong! ;) ( Auto-commit set to on perhaps? ) Regards, - Vincent Wehren | -- http://mail.python.org/mailman/listinfo/python-list
Re: different time tuple format
Rick Holbert wrote:
Like the last poster said, use %Z. On my Mandriva Linux system I get the
following results:
time.localtime()
(2005, 6, 7, 15, 7, 12, 1, 158, 1)
time.strptime(2005-06-07 15:07:12 EDT, %Y-%m-%d %H:%M:%S %Z)
(2005, 6, 7, 15, 7, 12, 1, 158, 1)
does not work at all: ValueError: format mismatch
i've check the value of time.tzname:
('EET', 'EEST')
and get the following (again):
time.strptime(2005-06-07 15:07:12 EET, %Y-%m-%d %H:%M:%S %Z)
(2005, 6, 7, 15, 7, 12, 6, 1, 0)
--
Best regards,
Maksim Kasimov
mailto: [EMAIL PROTECTED]
--
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Re: split up a list by condition?
Raymond Hettinger wrote: while writing my solution for The python way?, I came across this fragment: vees = [c for c in wlist[::-1] if c in vocals] cons = [c for c in wlist[::-1] if c not in vocals] So I think: Have I overlooked a function which splits up a sequence into two, based on a condition Trying to compress too much into one line is not the python way ;-) I know (there is a Guido quote about this, I just lost the source...) vees, cons = [], [] for c in reversed(wlist): if c in vocals: vees.append(c) else: cons.append(c) Well, I've found a uglier solution, vees, cons = [], [] [(vees, cons)[ch in vocals].append(ch) for ch in wlist] Reinhold -- http://mail.python.org/mailman/listinfo/python-list
Re: split up a list by condition?
Duncan Booth wrote: Reinhold Birkenfeld wrote: Hi, while writing my solution for The python way?, I came across this fragment: vees = [c for c in wlist[::-1] if c in vocals] cons = [c for c in wlist[::-1] if c not in vocals] So I think: Have I overlooked a function which splits up a sequence into two, based on a condition? Such as vees, cons = split(wlist[::-1], lambda c: c in vocals) Reinhold If you really are being charged by the number of newline characters in your code you could write: [...] but every penny you save writing a one liner will be tuppence extra on maintenance. This is clear. I actually wanted to know if there is a function which I overlooked which does that, which wouldn't be a maintenance nightmare at all. Reinhold -- http://mail.python.org/mailman/listinfo/python-list
Re: different time tuple format
In your case it is the EEST, as this is the DST timezone (see again:
http://docs.python.org/lib/module-time.html)
** [EMAIL PROTECTED]:~ $ python
** Python 2.4.1 (#2, Mar 30 2005, 21:51:10)
** [GCC 3.3.5 (Debian 1:3.3.5-8ubuntu2)] on linux2
** Type help, copyright, credits or license for more
information.
** import time
** print time.tzname
** ('CET', 'CEST')
** time.strptime(2005-06-07 15:07:12 CET, %Y-%m-%d %H:%M:%S %Z)
** (2005, 6, 7, 15, 7, 12, 1, 158, 0)
** time.strptime(2005-06-07 15:07:12 CEST, %Y-%m-%d %H:%M:%S
%Z)
** (2005, 6, 7, 15, 7, 12, 1, 158, 1)
**
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Re: Wxpython demo crashes
Pekka Karjalainen wrote: I'm using WinXP (Finnish), Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)] on win32 and wxPython 2.6.0.1. When I go to the Process and Events section in the wxDemo and run the Process demo, bad things can happen. It crashes. I think the crash is caused by characters outside the basic ASCII range, but I haven't tested it in detail. Do you have the unicode version of wxPython? http://prdownloads.sourceforge.net/wxpython/wxPython2.6-win32-unicode-2.6.1.0-py24.exe ^^^ -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading a CSV file into a list of dictionaries
RFQ wrote:
Hi, I'm struggling here to do the following with any success:
I have a comma delimited file where each line in the file is something
like:
PNumber,3056,Contractor,XYZ Contracting,Architect,ABC Architects,...
This is NOT a CSV file. A CSV file would be :
PNumber,Contractor,Architect,...
2056,XYZ Contracting,ABC Architects,...
Then, you could use the built-in CSV module of recent python versions.
So each line is intended to be: key1,value1,key2,value2,key3,value3...
and each line is to be variable in length (although it will have to be
an even number of records so that each key has a value).
I want to read in this csv file and parse it into a list of
dictionaries. So each record in the list is a dictionary:
{PNumber:3056,Contractor:XYZ Contracting, ... }
I have no problem reading in the CSV file to a list and splitting each
line in the file into its comma separated values. But I can't figure
out how to parse each resulting list into a dictionary.
Any help on this?
By,
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Re: split up a list by condition?
vees, cons = [], [] [(vees, cons)[ch in vocals].append(ch) for ch in wlist] Wow, that's horribly twisted Reinhold... I spent about an hour last night trying something similar, to no end... :) Neat tricks people... I like Duncan's use of or to solve it. I didn't see that in the python docs on list comprehension. Very cool. There is a special place in my heart for obfuscated Python, but of course, not in production code if there is a clearer solution available. -- http://mail.python.org/mailman/listinfo/python-list
Re: Trouble Encoding
why is it even trying latin-1 at all? I don't see it anywhere in
feedparser.py or my code.
deelan wrote:
[EMAIL PROTECTED] wrote:
I'm using feedparser to parse the following:
div class=indent textAdv: Termite Inspections! Jenny Moyer welcomes
you to her HomeFinderResource.com TM A MUST See amp;hellip;/div
I'm receiveing the following error when i try to print the feedparser
parsing of the above text:
UnicodeEncodeError: 'latin-1' codec can't encode character u'\u201c' in
position 86: ordinal not in range(256)
Why is this happening and where does the problem lie?
it seems that the unicode character 0x201c isn't part
of the latin-1 charset, see:
LEFT DOUBLE QUOTATION MARK
http://www.fileformat.info/info/unicode/char/201c/index.htm
try to encode the feedparser output to UTF-8 instead, or
use the replace option for the encode() method.
c = u'\u201c'
c
u'\u201c'
c.encode('utf-8')
'\xe2\x80\x9c'
print c.encode('utf-8')
ok, let's try replace
c.encode('latin-1', 'replace')
'?'
using replace will not throw an error, but it will replace
the offending characther with a question mark.
HTH.
--
deelan http://www.deelan.com/
--
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Re: Help with SMTP
Ok, all my problems are solved except for one. . .If I want my program to send a message back to me do I need the from adress? Because I don't specifically know it for the person using the program. Any help is appreciated =D -Ivan _ FREE pop-up blocking with the new MSN Toolbar get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading a CSV file into a list of dictionaries
Laurent RAHUEL wrote: RFQ wrote: Hi, I'm struggling here to do the following with any success: I have a comma delimited file where each line in the file is something like: PNumber,3056,Contractor,XYZ Contracting,Architect,ABC Architects,... This is NOT a CSV file. A CSV file would be : PNumber,Contractor,Architect,... 2056,XYZ Contracting,ABC Architects,... CSV is an acronym for Comma-Separated Values. It does not imply anything about the contents of the fields. The OP's file *is* a CSV file. Yes, the contents do represent an unusual application of the CSV format -- however a bus full of parcels instead of people is still a bus. Then, you could use the built-in CSV module of recent python versions. Python is a case-sensitive language. The name of the module is csv. The OP could use the csv module with his data. -- http://mail.python.org/mailman/listinfo/python-list
import error using BOOST in linux
i am using BOOST in linux with python and i can compile my CPP file just fine to make a .so but everytime i do a import i get this error import dirgesh Traceback (most recent call last): File stdin, line 1, in ? ImportError: libboost_python.so.1.32.0: cannot open shared object file: No such file or directory i also tried putting the libboost_python.so.1.32.0 file in the /usr/lib/python2.3 dir. please help -- http://mail.python.org/mailman/listinfo/python-list
Re: ANN: ActivePython 2.4.1 for Mac OS X is now available!
Trent Mick wrote: Meanwhile, some of you may be interested to know that we are busily working on bringing Komodo to Mac OS X. We expect to offer a beta in August and release later this year. [John Abel wrote] Komodo for OSX? Now that's something I would be interested in purchasing. We're workin' on it. :) Trent -- Trent Mick [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Trouble Encoding
[EMAIL PROTECTED] napisa(a): why is it even trying latin-1 at all? I don't see it anywhere in feedparser.py or my code. Check your site.py or sitecustomize.py module, you can have non-standard default encoding set there. -- Jarek Zgoda http://jpa.berlios.de/ | http://www.zgodowie.org/ -- http://mail.python.org/mailman/listinfo/python-list
Re: separate IE instances?
Chris Curvey [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I would have given up on this a long time ago, but I can create two IEXPLORE processes simultaneously (and get the behavior I want) by just manually launching them from the Start menu. (Of course, that doesn't mean that I can launch them programmatically, but I'm hoping that someone can give me a definitive answer.) J Correia [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Right, I hadn't quite understood your problem when I posted my reply. The code posted does work and allow navigation, etc. but you do have the problem with it sharing the same session cookies (I'm also on Win2k). And to answer Martin, you can definitely create as many iexplore.exe instances as you like in Windows. How to get Python to launch several instances with COM... not sure, although I'm 99% certain it is doable. I'll hunt around and see if I can find a solution which I'll post back. A very quick and very, very dirty method which might work is to start up the instances as follows: import win32api a = win32api.ShellExecute(0,None,iexplore.exe,None,None,1) b = win32api.ShellExecute(0,None,iexplore.exe,None,None,1) This creates the 2 instances of iexplore.exe in Windows you're looking for. Then use code like this to attach to the already running instances: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/269345 Haven't tried it because I'm certain there's a much more elegant solution, but depending on how quickly you need to get going it might be a possible short term work around until someone posts the better way. Perhaps you can also post some more info on what you're actually trying to achieve... make it easier for someone to help or even suggest alternatives. JC -- http://mail.python.org/mailman/listinfo/python-list
Re: split up a list by condition?
Reinhold Birkenfeld wrote: So I think: Have I overlooked a function which splits up a sequence into two, based on a condition? Such as vees, cons = split(wlist[::-1], lambda c: c in vocals) This is clear. I actually wanted to know if there is a function which I overlooked which does that, which wouldn't be a maintenance nightmare at all. Not that I know of, but if there is one it should be named bifilter, or difilter if you prefer Greek roots. :) def bifilter(test, seq): passes = [] fails = [] for term in seq: if test(term): passes.append(term) else: fails.append(term) return passes, fails bifilter(aeiou.__contains__, This is a test) (['i', 'i', 'a', 'e'], ['T', 'h', 's', ' ', 's', ' ', ' ', 't', 's', 't']) Another implementation, though in this case I cheat because I do the test twice, is from itertools import ifilter, ifilterfalse, tee def bifilter(test, seq): ... seq1, seq2 = tee(seq) ... return ifilter(test, seq1), ifilterfalse(test, seq2) ... bifilter(aeiou.__contains__, This is another test) (itertools.ifilter object at 0x57f050, itertools.ifilterfalse object at 0x57f070) map(list, _) [['i', 'i', 'a', 'o', 'e', 'e'], ['T', 'h', 's', ' ', 's', ' ', 'n', 't', 'h', 'r', ' ', 't', 's', 't']] Andrew [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: file permissions on windows XP (home)
Thanks, I tried creating a test file but I get Access is denied from windows explorer! The folder appears to be read only but when I try and uncheck read only/apply/repopen the folder properties its still read only. This read only flag seems to propagate down from the My Music directory but unchecking it there also has no lasting effect. I realise that theses are windows rather than python issues but I would expect there would be some reliable way of changing the file permissions from within python. I'm updating ID3 tags in MP3 file to give some context. If I use something like winamp to make the change to the ID3 tag then the file is updated with no permission errors so there must be a way I have added a stat call to the code which returns: (33206, 0L, 2, 1, 0, 0, 4142103L, 1118176036, 920221388, 442057) and this is the output of cacls (didn't know about this command): C:\Users\Barney\My Music\U2\The Best Of 1980 - 1990 (US CD 1)\02 - New Year's Day.mp3 XPHOME\Barney:(special access:) STANDARD_RIGHTS_ALL DELETE READ_CONTROL WRITE_DAC WRITE_OWNER SYNCHRONIZE STANDARD_RIGHTS_REQUIRED FILE_GENERIC_READ FILE_READ_DATA FILE_READ_EA FILE_WRITE_EA FILE_READ_ATTRIBUTES FILE_WRITE_ATTRIBUTES XPHOME\None:(special access:) READ_CONTROL SYNCHRONIZE FILE_GENERIC_READ FILE_READ_DATA FILE_READ_EA FILE_READ_ATTRIBUTES Everyone:(special access:) READ_CONTROL SYNCHRONIZE FILE_GENERIC_READ FILE_READ_DATA FILE_READ_EA FILE_READ_ATTRIBUTES I'm not entirely sure how to interpret these but will do some reading. In the meantime if someone could show me some python to force the file to be writeable that's all I really need at this stage. Thanks Barney -- http://mail.python.org/mailman/listinfo/python-list
Re: time consuming loops over lists
On Tue, 07 Jun 2005 18:13:01 +0200, Diez B. Roggisch [EMAIL PROTECTED] wrote: Another optimization im too lazy now would be to do sort of a tree search of data[i] in rngs - as the ranges are ordered, you could find the proper one in log_2(len(rngs)) instead of len(rngs)/2. I don't see a break so why the /2 ? also IIUC the ranges are more than just ordered... they're all equal and computed by for i in xrange(no_of_bins+1): rngs[i] = dmin + (rng*i) so my guess is that instead of searching with for j in xrange(len(rngs)-1): if rngs[j] = data[i] rngs[j+1]: one could just do j = int((data[i] - dmin)/rng) The code with this change gets roughly about twice faster. Andrea -- http://mail.python.org/mailman/listinfo/python-list
Re: poker card game revisited (code included)
Erik Max Francis wrote: flupke wrote: snip First of all, my apologies for the double posts. I can only see this reply and can't see my original messages. I posted the message from home and work and they didn't show up. We use the same isp at home and at work so it's probably a problem on their end. It looks like you're not approaching this in a systematic manner. Algorithms for determining poker hands are already pretty well-known; there are several open source projects that do it efficiently which you could learn from. Which projects are you talking about? I only found a library in c to evaluat ranks but i didn't find the code to be very understandable. When you're evaluating poker hands, you're looking for three basic types of card groups: matches, straights, and flushes. The most efficient way to look for matches is with a histogram based on the card rank. Bin the cards up by rank, and then build a second histogram of the counts of those ranks indexing into a list of the ranks which had those cards (sorted by rank, so you can pull off the highest ones). Now determining all the rank-based hands is easy: quads have a hit with four matches, a boat has a hit with two three matches (there's no two trips so this is a boat at best) or both three and two matches, two pair has two hits with two matches, etc. With histogram do you mean something like this: Card hand: 2 clubs, 3 diamonds, 10 of diamonds, 4 of hearts, 3 of hearts Histogram 1: list [2,3,4,10] 2 - 14 Histogram 2: list [1,2,1,0,0,0,0,0,1,0,0,0,0] or list [1,2,1,1] so index 0 is count of rank at index 0 of Histogram 1 index 1 is count of rank at index 1 of Histogram 1 Searching for straights and flushes is much better done by masks. Arrange all the possible cards in a huge masks based on both cards and ranks (easy to do in Python with the long type) and then build up rank masks that build up all possible straight combinations (sorted by the highest rank so you can search them in order), and then build up card mask ranks for each suit. For straights, just iterate through the straight rank masks and see if you find one that's fully occupied; if you do, that's a straight. For flushes, just iterate through the card suit masks and see if you find one that has more five or more unique cards in it. You need to iterate through all four and find the one with the highest value (for games with lots of cards, you could have two flushes; you want to count the highest one). Finally, to look for straight flushes, first apply the suit masks and then turn it into ranks and apply the straight masks. As for straights, if i understand correctly, you make all possible straights of the cards in the hand and then see if one matches? Then will all this information you can easily arrange the code to select the best existing hand. Note that these all use well-established techniques and reveal nothing secret. Well, it's all new to me :) Regards, Benedict -- http://mail.python.org/mailman/listinfo/python-list
Re: SMTP help please
From: Larry Bates [EMAIL PROTECTED] To: Ivan Shevanski [EMAIL PROTECTED] Subject: Re: SMTP help please Date: Tue, 07 Jun 2005 07:39:01 -0500 I have found that the SmtpWriter class hides all the complexity in creating emails like you want to send. Check it out here: http://motion.sourceforge.net/related/send_jpg.py This is good, but I don't want to send pictures and I don't know what to take out so it doesnt send pictures. I fooled around with it a little bit and kept getting this error: Traceback (most recent call last): File mail.py, line 119, in ? writer.sendMessage() File mail.py, line 94, in sendMessage aList = self.getImages() File mail.py, line 90, in getImages attachList = os.listdir(self.__imageDir) AttributeError: SmtpWriter instance has no attribute '_SmtpWriter__imageDir' So. . .it was good but i still can't get it to work. . .Can you help? -Ivan _ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Trouble Encoding
[EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I'm using feedparser to parse the following: div class=indent textAdv: Termite Inspections! Jenny Moyer welcomes you to her HomeFinderResource.com TM A MUST See amp;hellip;/div I'm receiveing the following error when i try to print the feedparser parsing of the above text: UnicodeEncodeError: 'latin-1' codec can't encode character u'\u201c' in position 86: ordinal not in range(256) Why is this happening and where does the problem lie? Several different things are going on here. First, when you try to print a unicode string using str() or a similar function, Python is going to use the default encoding to render it. The default encoding is usually ASCII-7. Why it's trying to use Latin-1 in this case is somewhat of a mystery. The quote in front of the word MUST is a smart quote, that is a curly quote, and it is not a valid character in either ASCII or Latin-1. Use Windows-1252 explicitly, and it should render properly. Alternatively use UTF-8, as one of the other posters suggested. Then it's up to whatever software you use to actually put the ink on the paper to render it properly, but that's a different issue. John Roth thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: time consuming loops over lists
I don't see a break so why the /2 ? also IIUC the That was the assumption of an equal distribution of the data. In O-notationn this would be O(n) of course. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading a CSV file into a list of dictionaries
John Machin wrote: Laurent RAHUEL wrote: RFQ wrote: Hi, I'm struggling here to do the following with any success: I have a comma delimited file where each line in the file is something like: PNumber,3056,Contractor,XYZ Contracting,Architect,ABC Architects,... This is NOT a CSV file. A CSV file would be : PNumber,Contractor,Architect,... 2056,XYZ Contracting,ABC Architects,... CSV is an acronym for Comma-Separated Values. It does not imply anything about the contents of the fields. The OP's file *is* a CSV file. Yes, the contents do represent an unusual application of the CSV format -- however a bus full of parcels instead of people is still a bus. I thought you knew the number of cols and what you should expect in each. Then it sounded pretty easy to build a list of dictionaries. If you don't know what you're supposed to find in your file and how this file is structured I guess you don't know what you are doing. Then, you could use the built-in CSV module of recent python versions. Python is a case-sensitive language. The name of the module is csv. The OP could use the csv module with his data. Damn, that's why I always see those annoynig import errors. I just wanted to help, maybe you're to much case-sensitive. Regards, Laurent. -- http://mail.python.org/mailman/listinfo/python-list
Re: programmnig advise needed
On 7 Jun 2005 12:14:45 -0700, [EMAIL PROTECTED] wrote:
I am writing a Python program that needs to read XML files and contruct
a tree object from the XML file (using wxTree).
Supposing your XML file has a single top level node (so that it's a
legal XML file) then the following code should be able to read it...
#
from elementtree import ElementTree as ET
class Node:
def __init__(self, xmlnode):
self.xmlnode = xmlnode
self.children = []
def loadtree(f):
root = ET.parse(f).getroot()
nodes = {}
for x in root:
if x.tag.startswith(element):
nodes[x.tag] = Node(x)
for x in root.findall(association):
name = x.find(Name).text
parent = x.find(Parent).text
nodes[parent].children.append(nodes.pop(name))
assert len(nodes) == 1
return nodes.popitem()[1]
##
The idea is to create a node with an empty list of
logical children and then for every association
removing the child node from the global pool (a dict
indexed by node name) to place it in its parent.
I assumed that the nodes are in random order, but
that the associations are sorted bottom-up in
the tree. If this is not the case then you should
keep TWO dicts, removing from only one of them
the children when you process an association,
and looking up the parent in the *other* dict that
is not changed during processing of associations.
The dict from who you are removing the children
will allow you to detect logical errors in the file
(i.e. a node having two parents - you won't find
that node in the dict the second time - and absence
of a single root - you won't end up with a single
element in the dict after processing all
associations -).
HTH
Andrea
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Re: time consuming loops over lists
Diez B. Roggisch wrote:
[EMAIL PROTECTED] wrote:
X-No-Archive: yes
Can some one help me improve this block of code...this jus converts the
list of data into tokens based on the range it falls into...but it
takes a long time.Can someone tell me what can i change to improve
it...
if data[i] in xrange(rngs[j],rngs[j+1]):
That's a bummer: You create a list and then search linearily in in -
where all you want to know is
if rngs[j] = data[i] rngs[j+1]
Attached is a script that does contain your old and my enhanced version
- and shows that the results are equal. Running only your version takes
~35s, where mine uses ~1s!!!
Another optimization im too lazy now would be to do sort of a tree
search of data[i] in rngs - as the ranges are ordered, you could find
the proper one in log_2(len(rngs)) instead of len(rngs)/2.
Additional improvements can be achieved when data is sorted - but that
depends on your application and actually sizes of data.
Diez
[snip]
Make these changes/additions:
=
# from Numeric import *
# +1 for Overkill-of-the-Year
def zeros(n):
return n * [0.0]
def Tkz3(tk, data, no_of_bins):
# indent 5 ???
# change other funcs to have no_of_bins as an arg
tkns = []
dmax = max(data)+1
dmin = min(data)
rng = int(ceil(abs((dmax - dmin)/(no_of_bins*1.0
for datum in data:
j = (datum - dmin) // rng
tkns.append( str(tk)+str(j) )
return tkns
for func in (Tkz, Tkz2, Tkz3):
t0 = time.time()
result = func('A', data, nbins)
t1 = time.time()
results.append(result)
print function %s took %.2f seconds to produce %d tokens %
(func.__name__, t1 - t0, len(result))
allsame = results [0] == results[1] == results[2]
print \nIdentical results:, allsame
===
and get this:
C:\junkranges.py
C:\junk\ranges.py:46: DeprecationWarning: integer argument expected, got
float
if data[i] in xrange(rngs[j], rngs[j+1]):
function Tkz took 12.13 seconds to produce 12292 tokens
function Tkz2 took 0.08 seconds to produce 12292 tokens
function Tkz3 took 0.02 seconds to produce 12292 tokens
Identical results: True
==
using Python 2.4.1 (win32) on a 3.2Ghz Intel P4
==
Notes: (1) The OP's code as well as being deliciously O(N**2) depends on
the data beint *integers* -- otherwise it goes rapidly pear-shaped; see
the deprecation warning above, and try running it with data = [0.1*
x for x in range(20, 12312)]. Consequently the use of math.* is a /mild/
overkill.
(2) The OP's code produces bins of equal nominal width but depending in
the range, the population of the last bin may be much less than the
population of the other bins. Another way of doing it would be to
produce bin widths so that the populations were more evenly spread. In
any case determining the appropriate bin could still be done by formula
rather than by searching.
Cheers,
John
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Re: time consuming loops over lists
On Tue, 07 Jun 2005 23:38:29 +0200, Diez B. Roggisch [EMAIL PROTECTED] wrote: I don't see a break so why the /2 ? also IIUC the That was the assumption of an equal distribution of the data. In O-notationn this would be O(n) of course. It was a joke ... the issue is that there was no break statement :-) i.e. your code kept searching even after finding the proper range! Actually that break (with 10 bins) is not terribly important because the cost of the comparision is small compared to the cost of append. The timings I got are.. your code 1.26 sec adding break 0.98 sec direct index computation 0.56 sec 10 bins are so few that with just low-level speedups (i.e. precomputing a list of ranges and str(j)) the code that does a linear scan requires just 0.60 seconds. Hand optimizing the direct computation code the execution time gets down to 0.3 seconds; the inner loop i used is: for i, x in enumerate(data): j = int((x - dmin)/rng) tkns[i] = tks + js[j] with data = range(20, 123120) Andrea -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading a CSV file into a list of dictionaries
Laurent RAHUEL wrote: I thought you knew the number of cols and what you should expect in each. Then it sounded pretty easy to build a list of dictionaries. If you don't know what you're supposed to find in your file and how this file is structured I guess you don't know what you are doing. That's not what the OP asked about. [RFQ:] So each line is intended to be: key1,value1,key2,value2,key3,value3... and each line is to be variable in length (although it will have to be an even number of records so that each key has a value). The rows are not all of the same format. The OP *does* know the structure, and he (?) *does* know what he's doing. It's just not the structure usually used in CSV files. The csv module, of course, still reads these rows just fine; they just need to be processed a bit to get the correct dictionaries. -- Robert Kern [EMAIL PROTECTED] In the fields of hell where the grass grows high Are the graves of dreams allowed to die. -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
Re: SMTP help please
Martin Franklin [EMAIL PROTECTED] writes: server = smtplib.SMTP(mailserver.somewhere.com) Why are you beating up Kee's mail server (hint: whois somewhere.com)? See RFC 2606 URL: http://www.ietf.org/rfc/rfc2606.txt and search for example.com for how to pick example domain names properly. mike -- Mike Meyer [EMAIL PROTECTED] http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. -- http://mail.python.org/mailman/listinfo/python-list
