Re: Idempotent XML processing
On Aug 19, 2005, at 1:20 PM, Robert Kern wrote: Read up on XML canonicalization (abrreviated as c14n). lxml implements this, also xml.dom.ext.c14n in PyXML. You'll need to canonicalize on both ends before hashing. To paraphrase an Old Master, if you are running a cryptographic hash over a non-canonical XML string representation, then you are living in a state of sin. Canonicalization seems to be the needed thing. Looking at the protocol specification again, it mentions canonicalization; I had glossed over that previously because I was unware of any defined meaning it had. But the c14n module should provide the needed results (now that I've finally dug up documentation for it). -Michael -- http://mail.python.org/mailman/listinfo/python-list
Re: python classes taught
Yeha, sure. The Royal Institute of Technology in Stockholm, Sweden teaches Python for some of its introductory programming and algorithm courses. -- http://mail.python.org/mailman/listinfo/python-list
Re: Confused newbie needs help with __init__() takes exactly 11 arguments (1 given)
it looks like your problem is in this line: reviews = [Review(*[field.strip() for field in row]) for row in reader] ouch! split that up a bit so we can understand what the heck you are trying to do here. Also, it appears the whole thing is in these [ ] ? why? -- http://mail.python.org/mailman/listinfo/python-list
Re: global interpreter lock
Would a cheap solution just be to run two python interpreters and have the scripts communicating over COM or some other such thing? I'd imagine that would give you true parallelism. -GregOn 8/19/05, Donn Cave [EMAIL PROTECTED] wrote: In article [EMAIL PROTECTED] , Bryan Olson [EMAIL PROTECTED] wrote: km wrote: Hi all, is true parallelism possible in python ? or atleast in the coming versions ? is global interpreter lock a bane in this context ? No; maybe; and currently, not usually. On a uniprocessor system, the GIL is no problem. On multi- processor/core systems, it's a big loser.I rather suspect it's a bigger winner there. Someone who needs to execute Python instructions in parallelis out of luck, of course, but that has to be a small crowd.I would have to assume that in most applications that needthe kind of computational support that implies, are doing most of the actual computation in C, in functions that run with thelock released.Rrunnable threads is 1 interpreter, plus Nallow threads C functions, where N is whatever the OS will bear.Meanwhile, the interpreter's serial concurrency limits the damage.The unfortunate reality is that concurrency is abane, so to speak -- programming for concurrency takes skilland discipline and a supportive environment, and Python'sinterpreter provides a cheap and moderately effective support that compensates for most programmers' unrealistic assessmentof their skill and discipline.Not that you can't go wrong,but the chances you'll get nailed for it are greatly reduced -especially in an SMP environment. Donn Cave, [EMAIL PROTECTED] --http://mail.python.org/mailman/listinfo/python-list -- Gregory PiñeroChief Innovation OfficerBlended Technologies(www.blendedtechnologies.com) -- http://mail.python.org/mailman/listinfo/python-list
Re: A script to run all of my project's pyunit tests
[EMAIL PROTECTED] wrote: for file in glob(projHome + /tests/*.py): start = file.rfind(/) + 1 end = file.rfind(.) moduleName = file[start:end] module = __import__(moduleName) klass = module.__dict__[module.__name__] tests.append(unittest.makeSuite(klass, test)) allTests = unittest.TestSuite(tests) runner = unittest.TextTestRunner(verbosity=2) runner.run(allTests) This is still a kludge, but a different and less annoying one. It works as long as the TestCase class and module have the same name. Back to the drawing board... -- Regards, Travis Spencer -- http://mail.python.org/mailman/listinfo/python-list
Re: Idempotent XML processing
Read up on XML canonicalization (abrreviated as c14n). lxml implements this, also xml.dom.ext.c14n in PyXML. You'll need to canonicalize on both ends before hashing. I said normalization but I think canonicalization is the word I was looking for. I wasn't aware that lxml implented it (or that it had an abbreviation), so that's good to know. Thanks! Will. -- http://mail.python.org/mailman/listinfo/python-list
Re: while c = f.read(1)
Alright, everyone seems to have gone off on a tangent here, so I'll try to stick to your code... This is what I would ideally like: f = open(blah.txt, r) while c = f.read(1): # ... work on c But I get a syntax error. while c = f.read(1): ^ SyntaxError: invalid syntax That's because you are using an assignment operator instead of a comparison operator. It should have been written like this: while c == f.read(1): that would be written correctly, though I don't think that is your intention. Try this novel implementation, since nobody has suggested it yet. - import mmap f = open(blah.txt, 'r+') #opens file for read/write c = mmap.mmap(f.fileno(),0) #maps the file to be used as memory map... while c.tell() c.size(): print c.read_byte() --- That accomplishes the same thing. -- http://mail.python.org/mailman/listinfo/python-list
Re: Confused newbie needs help with __init__() takes exactly 11 arguments (1 given)
d'oh I'm an idiot... you are making a 'list' object. -- http://mail.python.org/mailman/listinfo/python-list
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Re: How to get a unique id for bound methods?
Russell E. Owen wrote: The id of two different methods of the same object seems to be the same, and it may not be stable either. Two facts you're (apparently) unaware of are conspiring against you: 1) the id of an object is consistent for the lifetime of the object, but may be reused after the object goes away 2) methods are bound on an as-needed basis and then normally discarded (unless you do something to keep them around) An illustration: class cls(object): def meth1(self): pass def meth2(self): pass c = cls() m1 = c.meth1 print id(m1) -1209779308 m2 = c.meth1 print id(m2) -1209652732 I guess that just means bound methods aren't objects in their own right, but it surprised me. Nope, they're objects, they just don't tend to be around very long. The hash function looks promising -- it prints out consistent values if I use it instead of id in the code above. Is it stable and unique? The documentation talks about objects again, which given the behavior of id makes me pretty nervous. Any advice would be much appreciated. I think you'll get the best advice from this group if you tell us what the larger problem is that you're trying to solve. -- Benji York -- http://mail.python.org/mailman/listinfo/python-list
Re: How to get a unique id for bound methods?
On Fri, 19 Aug 2005 13:29:19 -0700, Russell E. Owen [EMAIL PROTECTED] wrote: I have several situations in my code where I want a unique identifier for a method of some object (I think this is called a bound method). I want this id to be both unique to that method and also stable (so I can regenerate it later if necessary). I thought the id function was the obvious choice, but it doesn't seem to work. The id of two different methods of the same object seems to be the same, and it may not be stable either. For instance: The id function works, but you are applying it to transient objects, which is what bound methods are unless you cause them to persist one way or another. class cls(object): def __init__(self): print id(self.meth1) print id(self.meth2) def meth1(self): pass def meth2(self): pass c = cls() 3741536 3741536 This means that self.meth1 only existed long enough to be passed to id, and when id was done with determining its id, self.meth1 was freed. Then self.meth2 was created, and happened to use a representation space with the same id as was used for self.meth1. If the two objects (bound methods here) existed at the same time, they would be guaranteed not to have the same id unless they were actually the same object. print id(c.meth1) 3616240 print id(c.meth2) 3616240 This happened to re-use a representation space with another id. I guess that just means bound methods aren't objects in their own right, but it surprised me. No, they are objects in their own right. You were surprised by your [mis]interpretation of the above results ;-) The hash function looks promising -- it prints out consistent values if I use it instead of id in the code above. Is it stable and unique? The documentation talks about objects again, which given the behavior of id makes me pretty nervous. Any advice would be much appreciated. If you want a particular bound method to have a stable and persistent id, make it persist, e.g., class cls(object): ... def __init__(self): ... print id(self.meth1) ... print id(self.meth2) ... def meth1(self): ... pass ... def meth2(self): ... pass ... c = cls() 49219060 49219060 print id(c.meth1) 49219020 print id(c.meth2) 49219020 Ok, those were transient, now nail a couple of bound methods down: cm1 = c.meth1 cm2 = c.meth2 And you can look at their id's all you like: print id(cm1) 49219020 print id(cm2) 49219060 print id(cm1) 49219020 print id(cm2) 49219060 But every time you just evaluate the attribute expression c.meth1 or c.meth2 you will get a new transient bound method object, with a new id: print id(c.meth1) 49219180 print id(c.meth2) 49219180 But the ones we forced to persist by binding the expression values to cm1 and cm2 above still have the same ids as before: print id(cm1) 49219020 print id(cm2) 49219060 So the question would be, why do you (think you ;-) need ids for these bound methods as such? I.e., what is the situation in your code? Regards, Bengt Richter -- http://mail.python.org/mailman/listinfo/python-list
Re: Python jobs (was Re: Python for Webscripting (like PHP))
In article [EMAIL PROTECTED], Erik Max Francis [EMAIL PROTECTED] wrote: Peter Decker wrote: Then start looking for telecommuting people. There are lots of us who can use work and have excellent telecommuting references, but who don't happen to live in a major metro area! And then there's some in the Bay Area who wouldn't mind telecommuting, either ... :-) We do a *lot* of telecommuting. I'm working from home today, for example, because I needed to deal with the plumber. And we have two people in Seattle out of seven fulltime people. However, it's our experience that people are more productive when they show up at the office regularly -- the two Seattle people had lots of experience with our product before they worked independently, and the two of them do share an office. (They work across the street from Elliott Bay Books, the bastards.) -- Aahz ([EMAIL PROTECTED]) * http://www.pythoncraft.com/ The way to build large Python applications is to componentize and loosely-couple the hell out of everything. -- http://mail.python.org/mailman/listinfo/python-list
trying to check the creation date of a file
People, I am trying to determine the creation date of files in a folder. I am using the following code to find the folder and confirm that files exist in the folder. If someone could give me an idea how to check a creation date it would be appreciated. Thanks dave def delete_old_files (t:\dm\~\users) # find files and delete files created more than XX number of days ago update_exist = 0 input_dir = t:\dm\~\users\.yy\ if os.path.exists (input_dir) : files = os.listdir (input_dir) else: print Unable to find input file dir: %s !!! % input_dir sys.exit(2) if len(files): for file in files : file = os.path.join(input_dir) #all files in output directory will be csv or xls, can be deleted if old enough if os.path.isfile(file): #need to check ext not file, file name changes each day if re.search(t:\dm\~\users\x\) and #creation date gt x number of days ago t:\dm\~\users\davef.input_list.delete(file) file_delete = 1 if file_delete: print \n file deleted: \n%s % str(t:\dm\~\users\x.input_list) return file_delete Dave Fickbohm Data Mining Analyst Homegain+ 1250 45th St. Emeryville, CA, 94608 Phone 510 594 4151 - Voice 510 655 0848 - Fax -- http://mail.python.org/mailman/listinfo/python-list
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Re: trying to check the creation date of a file
use os.stat docs are here: http://docs.python.org/lib/module-stat.html Larry Bates David Fickbohm wrote: People, I am trying to determine the creation date of files in a folder. I am using the following code to find the folder and confirm that files exist in the folder. If someone could give me an idea how to check a creation date it would be appreciated. Thanks dave def delete_old_files (t:\dm\~\users) # find files and delete files created more than XX number of days ago update_exist = 0 input_dir = t:\dm\~\users\.yy\ if os.path.exists (input_dir) : files = os.listdir (input_dir) else: print Unable to find input file dir: %s !!! % input_dir sys.exit(2) if len(files): for file in files : file = os.path.join(input_dir) #all files in output directory will be csv or xls, can be deleted if old enough if os.path.isfile(file): #need to check ext not file, file name changes each day if re.search(t:\dm\~\users\x\) and #creation date gt x number of days ago t:\dm\~\users\davef.input_list.delete(file) file_delete = 1 if file_delete: print \n file deleted: \n%s % str(t:\dm\~\users\x.input_list) return file_delete Dave Fickbohm Data Mining Analyst Homegain+ 1250 45th St. Emeryville, CA, 94608 Phone 510 594 4151 - Voice 510 655 0848 - Fax -- http://mail.python.org/mailman/listinfo/python-list
servers in python
I am writing a Hashcash program in python. Rather than create an email client plugin, I have done this thru a proxy server which adds the Hashcash before forwarding. What I want to know is whether this is safe. I currently use this code: class HashcashServer (smtpd.PureProxy): def process_message (self, peer, mailfrom, rcpttos, data): if peer[0] in trusted_peers: # add Hashcash and forward else: pass where trusted_peers is a list of peers that are allowed to use the service (it is currently just [localhost]). Is there risk of any hacking, or of this becoming an open relay? --Max -- http://mail.python.org/mailman/listinfo/python-list
Re: Database of non standard library modules...
Steve Holden wrote: Robert Kern wrote: Jon Hewer wrote: Is there an online database of non standard library modules for Python? http://cheeseshop.python.org/pypi While cheeseshop might resonate with the Monty Python fans I have to say I think the name sucks in terms of explaining what to expect. If I ask someone where I can find a piece of code and the direct me to the cheese shop, I might look for another language. regards Steve To be fair, it's really the Python Package Index, it just happens to be stored on a machine called cheeseshop. -- Nigel Rowe A pox upon the spammers that make me write my address like.. rho (snail) swiftdsl (stop) com (stop) au -- http://mail.python.org/mailman/listinfo/python-list
Re: while c = f.read(1)
On Fri, 19 Aug 2005 16:31:47 +1000, John Machin [EMAIL PROTECTED] wrote: Bengt Richter wrote: On 18 Aug 2005 22:21:53 -0700, Greg McIntyre [EMAIL PROTECTED] wrote: I have a Python snippet: f = open(blah.txt, r) while True: c = f.read(1) if c == '': break # EOF # ... work on c Is some way to make this code more compact and simple? It's a bit spaghetti. This is what I would ideally like: f = open(blah.txt, r) while c = f.read(1): # ... work on c How about (untested): for c in iter((lambda f=open('blah.txt', 'r'): f.read(1)), ''): # ... work on c :-) Bengt, did you read on to the bit where the OP wanted to do it more nicely? YMMV, but I think you've strayed into pas devant les enfants territory. (-: LOL. Mais non ;-) OTOH, I think this might cross the line: f = open('blah.txt') while [c for c in [f.read(1)] if c!='']: # ... work on c ;-) Regards, Bengt Richter -- http://mail.python.org/mailman/listinfo/python-list
Re: while c = f.read(1)
[EMAIL PROTECTED] wrote: Alright, everyone seems to have gone off on a tangent here, so I'll try to stick to your code... This is what I would ideally like: f = open(blah.txt, r) while c = f.read(1): # ... work on c But I get a syntax error. while c = f.read(1): ^ SyntaxError: invalid syntax That's because you are using an assignment operator instead of a comparison operator. It should have been written like this: while c == f.read(1): that would be written correctly, though I don't think that is your intention. Try this novel implementation, since nobody has suggested it yet. - import mmap f = open(blah.txt, 'r+') #opens file for read/write c = mmap.mmap(f.fileno(),0) #maps the file to be used as memory map... while c.tell() c.size(): print c.read_byte() --- That accomplishes the same thing. Dear Sir or Madam, I refer you to your recent post -- the one that started with d'oh. Regards, John -- http://mail.python.org/mailman/listinfo/python-list
Re: wanna stop by my homemade glory hole?
wanna stop by my homemade glory hole? I don't think anyone on this group will be interested in trying their Python with that. Take it somewhere else. -- Stephen Kellett Object Media Limitedhttp://www.objmedia.demon.co.uk/software.html Computer Consultancy, Software Development Windows C++, Java, Assembler, Performance Analysis, Troubleshooting -- http://mail.python.org/mailman/listinfo/python-list
Re: Python jobs (was Re: Python for Webscripting (like PHP))
Gregory Piñero [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I'd love Python work, just like everyone else here. On a related topic, what's the policy/etiquette of posting a resume on here, or mentioning what kind of work you're looking for? I would take absence of such postings, even though you can imagine *lots* of people have had the same idea, as an indication that it is against policy/etiquette. If 1 person does it, we could easily have 10 or 100 a day ;-). And what's the policy in general for most newsgroups and mailing lists? For mainline newsgroups, such as the comp.*, commercial annoucements are generally counter-indicated unless the name (.marketplace) or charter say otherwise. Exceptions would be a low volume of things of direct and narrow interest. So I consider the rare job announcements posted here ok. The same for book announcements. In either case, such are positive news for what is still a minority, just becoming mainstream, language. Terry J. Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: How to get a unique id for bound methods?
Russell E. Owen wrote: The hash function looks promising -- it prints out consistent values if I use it instead of id in the code above. Is it stable and unique? The documentation talks about objects again, which given the behavior of id makes me pretty nervous. I dont know how the hash of a bound method is calculated,but as the function of the method is a stable and referenced object and as instances lives are in your hands,then an id(self)^id(self.meth.im_func) should be a chance for that 'hash' function. def methodId(boundMethod): return id(boundMethod.im_self)^id(boundMethod.im_func) class cls(object): def __init__(self): print methodId(self.meth1) print methodId(self.meth2) def meth1(self): pass def meth2(self): pass c = cls() print methodId(c.meth1) print methodId(c.meth2) I think this is giving what you expected. Regards Paolino ___ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie Question
Tom Strickland wrote: I have a file that contains many lines, each of which consists of a string of comma-separated variables, mostly floats but some strings. Each line looks like an obvious tuple to me. How do I save each line of this file as a tuple rather than a string? Or, is that the right way to go? Thank you. Tom Strickland You will probably be able to read the file using the csv module. But what do you want to do with the data? Transcribe it into some other format just for a learning exercise? What do you mean by save as tuple? A few more clues might save you from being (a) ignored and/or (b) deluged with irrelevant responses from well-intentioned wanting-to-help people who have guessed wrongly what you are rabbiting on about ... -- http://mail.python.org/mailman/listinfo/python-list
Re: stdin - stdout
limodou wrote: 2005/8/19, max(01)* [EMAIL PROTECTED]: hi. i was wondering, what's the simplest way to echo the standard input to the standard output, with no modification. i came up with: ... while True: try: raw_input() except EOFError: break ... but i guess there must be a simpler way. using bash i simply do 'cat', *sigh*! bye max ps: in perl you ca do this: ... while ($line = STDIN) { print STDOUT ($line); } ... Try this. import sys line = sys.stdin.readline() while line: sys.stdout.write(line) line = sys.stdin.readline() Try this: import sys for line in sys.stdin: sys.stdout.write(line) -- http://mail.python.org/mailman/listinfo/python-list
Re: global interpreter lock
Donn Cave wrote: Bryan Olson wrote: On a uniprocessor system, the GIL is no problem. On multi- processor/core systems, it's a big loser. I rather suspect it's a bigger winner there. Someone who needs to execute Python instructions in parallel is out of luck, of course, but that has to be a small crowd. Today, sure. The chip guys have spoken and the future is mult- core. I would have to assume that in most applications that need the kind of computational support that implies, are doing most of the actual computation in C, in functions that run with the lock released. That seems an odd thing to assume. Rrunnable threads is 1 interpreter, plus N allow threads C functions, where N is whatever the OS will bear. Meanwhile, the interpreter's serial concurrency limits the damage. The unfortunate reality is that concurrency is a bane, so to speak -- programming for concurrency takes skill and discipline and a supportive environment, and Python's interpreter provides a cheap and moderately effective support that compensates for most programmers' unrealistic assessment of their skill and discipline. Not that you can't go wrong, but the chances you'll get nailed for it are greatly reduced - especially in an SMP environment. I don't see much point in trying to convince programmers that they don't really want concurrent threads. They really do. Some don't know how to use them, but that's largely because they haven't had them. I doubt a language for thread-phobes has much of a future. -- --Bryan -- http://mail.python.org/mailman/listinfo/python-list
Karrigell tutorial published
Karrigell has new tutorial here: http://karrigell.sourceforge.net/en/tutorial.html For those who don't know what Karrigell is, I'd just say that it is the most pythonic, simple, fun, straightforward and full-featured web framework available today. Check it out! http://karrigell.sourceforge.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: How to get a unique id for bound methods?
In article [EMAIL PROTECTED], Benji York [EMAIL PROTECTED] wrote: Russell E. Owen wrote: The id of two different methods of the same object seems to be the same, and it may not be stable either. Two facts you're (apparently) unaware of are conspiring against you: 1) the id of an object is consistent for the lifetime of the object, but may be reused after the object goes away 2) methods are bound on an as-needed basis and then normally discarded (unless you do something to keep them around) Thank you and Bengt Richter. You both explained it very well. The current issue is associated with Tkinter. I'm trying to create a tk callback function that calls a python function (any python callable entity). To do that, I have to create a name for tk that is unique to my python function. A hash-like name would be perfect, meaning a name that is always the same for a particular python function and always different for a different python function. That would save a lot of housekeeping. Does the built-in hash function actually do the job? If I centralize all tk callback management and keep objects that represent the tk callback around then I can avoid the whole issue. I was hoping to avoid that, because it complicates housekeeping and adds a risk of memory leaks (at least I think so; right now tk deallocates its callback functions in the few cases I care about so I don't worry about it.) -- Russell P.S. Paolino: thank you also for your kind reply. Your suggestion sounds very useful if I only want a hash for a bound function, but in this case since I want a hash for any callable entity I'm not sure it'll work. -- http://mail.python.org/mailman/listinfo/python-list
Re: pickle.load not working?
In [EMAIL PROTECTED], [EMAIL PROTECTED] wrote: oh, well how do I make derek be an instance of 'chatuser' ? Spot the difference:: In [228]: class A: pass .228.: In [229]: a = A In [230]: repr(a) Out[230]: 'class __main__.A at 0x4078883c' In [231]: b = A() In [232]: repr(b) Out[232]: '__main__.A instance at 0x4075e52c' Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: trying to check the creation date of a file
David Fickbohm wrote: People, I am trying to determine the creation date of files in a folder. I am using the following code to find the folder and confirm that files exist in the folder. Presumably you meant intend to use the following pseudocode (not am using the following code) -- many of the statements (marked XXX below) are just not valid Python. If someone could give me an idea how to check a creation date it would be appreciated. Thanks dave def delete_old_files (t:\dm\~\users) XXX # find files and delete files created more than XX number of days ago update_exist = 0 Did you mean file_delete = 0? input_dir = t:\dm\~\users\.yy\ XXX if os.path.exists (input_dir) : files = os.listdir (input_dir) else: print Unable to find input file dir: %s !!! % input_dir sys.exit(2) if len(files): Not necessary -- for file in files does nothing gracefully if files is empty. If it were necessary, if not files: is suggested as an alternative to if len(files). for file in files : file = os.path.join(input_dir) #all files in output directory will be csv or xls, can be deleted if old enough I think you mean file = os.path.join(input_dir, file) if os.path.isfile(file): #need to check ext not file, file name changes each day if re.search(t:\dm\~\users\x\) and #creation date XXX You don't need the re module to check if the file's extension is csv or xls gt x number of days ago t:\dm\~\users\davef.input_list.delete(file) XXX file_delete = 1 if file_delete: print \n file deleted: \n%s % str(t:\dm\~\users\x.input_list) return file_delete Now, to answer your question: You have obviously read the docs on the os module; what did you not understand about os.stat()? I suggest you contemplate the following real-not-pseudo-code and then examine the relevant sections of the docs for os.stat(), the stat module, and the time module. C:\junktype st_ctime.py import os, stat, time def get_create_time(path): int_time = os.stat(path)[stat.ST_CTIME] str_time = time.ctime(int_time) return str_time if __name__ == __main__: import glob, sys for arg in sys.argv[1:]: for path in glob.glob(arg): create_time = get_create_time(path) print path, create_time C:\junkst_ctime.py *c*.py checkmodules.py Fri Jun 24 22:32:57 2005 ivancodecs.py Mon Jul 11 10:03:23 2005 st_ctime.py Sat Aug 20 09:22:00 2005 C:\junk -- http://mail.python.org/mailman/listinfo/python-list
wanna stop by my homemade glory hole?
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Re: How to get a unique id for bound methods?
On Fri, 19 Aug 2005 16:33:22 -0700, Russell E. Owen [EMAIL PROTECTED] wrote: [...] The current issue is associated with Tkinter. I'm trying to create a tk callback function that calls a python function (any python callable entity). To do that, I have to create a name for tk that is unique to my python function. A hash-like name would be perfect, meaning a name that is always the same for a particular python function and always different for a different python function. That would save a lot of housekeeping. Why do you need a name? Can you post an example snippet that shows a callback function being used with Tkinter as you would wish? I have a feeling there is a much simpler solution than you are imagining ;-) Regards, Bengt Richter -- http://mail.python.org/mailman/listinfo/python-list
Version of TAR in tarfile module? TAR 1.14 or 1.15 port to Windows?
I need to unpack on a Windows 2000 machine some Wikipedia media .tar archives which are compressed with TAR 1.14 (support for long file names and maybe some other features) . It seems, that Pythons tarfile module is able to list far more files inside the archives than WinRAR or 7zip or TotalCommander, but will it unpack all available files (largest archive size 17 GByte)? If tarfile is build on TAR 1.14 or TAR 1.15 it will be probably ok, so my questions are: What TAR version is built into the tarfile module? Is there a TAR 1.14 or 1.15 port to Windows available in Internet for download (which URL)? Claudio -- http://mail.python.org/mailman/listinfo/python-list
Re: Moinmoin config
The missing link under /var/www/html was exactly the problem. Somehow missed this in the labyrinth of setup instructions. I have another question, and as of yet, have not found another discussion group for moinmoin, so sorry, but here goes: I have a table and would like the table borders to go away. Although it doesn't talk about border widths explicitliy, the HelpOnTables seems to point to this : tablestyle=width: 80%; border: 0; But that does nothing to the border lines. Adjusting width in the same line does work to change the size of the table, but it doesn't seem to understand 'border'. Anyone know how to make the borders disappear? Thanks Mark -- http://mail.python.org/mailman/listinfo/python-list
Re: Python jobs
Terry Reedy [EMAIL PROTECTED] writes: generally counter-indicated unless the name (.marketplace) or charter say otherwise. Exceptions would be a low volume of things of direct and narrow interest. So I consider the rare job announcements posted here ok. The same for book announcements. The key words here are of direct and narrow interest. Job postings that don't mention Python in c.l.python are spam, nothing else. Maybe the Python jobs lists needs a available developers counterpart? Or would it be to big/dynamic to maintain using whatever is behind the jobs list? 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
Re: global interpreter lock
Bryan Olson [EMAIL PROTECTED] writes: I don't see much point in trying to convince programmers that they don't really want concurrent threads. They really do. Some don't know how to use them, but that's largely because they haven't had them. I doubt a language for thread-phobes has much of a future. The real problem is that the concurrency models available in currently popular languages are still at the goto stage of language development. Better models exist, have existed for decades, and are available in a variety of languages. It's not that these languages are for thread-phobes, either. They don't lose power any more than Python looses power by not having a goto. They languages haven't taken off for reasons unrelated to the threading model(*). The rule I follow in choosing my tools is Use the least complex tool that will get the job done. Given that the threading models in popular languages are complex and hard to work with, I look elsewhere for solutions. I've had good luck using async I/O in lieue of theards. It's won't solve every problem, but where it does, it's much simpler to work with. mike *) I recently saw a discussion elsehwere that touched on almost the same topic, lamenting that diagnostic tools in popular programming languages pretty much sucked, being at best no better than they were 30 years ago. The two together seem to indicate that something is fundamentally broken somewhere. -- 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
Re: Save Binary data.
Larry Bates [EMAIL PROTECTED] writes: Directories with large numbers of files was a problem in FAT16 and FAT32 filesystems but not really a problem in NTFS or Linux (at least that I've found). Depends on how you define large and what Linux file system you're using. Of course, if you open the directory in a GUI directory browser, you're probably going to be unhappy no matter what the underlying file system. The standard Unix solution to this is to break the files out into subdirectories. Create a subdirectory with the name being the first few letters of the file name, and then store the file in that subdirectory. Easy to do programmatically, it's still easy to find files by hand, and you can make it as fine-grained as you want. 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
Re: Python jobs
In article [EMAIL PROTECTED], Mike Meyer [EMAIL PROTECTED] wrote: Maybe the Python jobs lists needs a available developers counterpart? Or would it be to big/dynamic to maintain using whatever is behind the jobs list? Part of the reason the Jobs page hasn't moved to a wiki is that often people sending in job ads are insufficiently technical to handle the formatting. That presumably wouldn't be true for an available developers wiki... -- Aahz ([EMAIL PROTECTED]) * http://www.pythoncraft.com/ The way to build large Python applications is to componentize and loosely-couple the hell out of everything. -- http://mail.python.org/mailman/listinfo/python-list
Re: BeautifulSoup
Paul McGuire [EMAIL PROTECTED] writes: Here's a pyparsing program that reads my personal web page, and spits out HTML with all of the HREF's reversed. Parsing HTML isn't easy, which makes me wonder how good this solution really is. Not meant as a comment on the quality of this code or PyParsing, but as curiosity from someone who does a lot of [X}HTML herding. -- Paul (Download pyparsing at http://pyparsing.sourceforge.net.) If it were in the ports tree, I'd have grabbed it and tried it myself. But it isn't, so I'm going to be lazy and ask. If PyParsing really makes dealing with HTML this easy, I may package it as a port myself. from pyparsing import Literal, quotedString import urllib LT = Literal() GT = Literal() EQUALS = Literal(=) htmlAnchor = LT + A + HREF + EQUALS + quotedString.setResultsName(href) + GT def convertHREF(s,l,toks): # do HREF conversion here - for demonstration, we will just reverse them print toks.href return A HREF=%s % toks.href[::-1] htmlAnchor.setParseAction( convertHREF ) inputURL = http://www.geocities.com/ptmcg; inputPage = urllib.urlopen(inputURL) inputHTML = inputPage.read() inputPage.close() print htmlAnchor.transformString( inputHTML ) How well does it deal with other attributes in front of the href, like A onClick=... href=...? How about if my HTML has things that look like HTML in attributes, like TAG ATTRIBUTE=stuffA HREF=stuff? Thanks, 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
Re: Moinmoin config
Mark wrote: The missing link under /var/www/html was exactly the problem. Somehow missed this in the labyrinth of setup instructions. I have another question, and as of yet, have not found another discussion group for moinmoin, so sorry, but here goes: I have a table and would like the table borders to go away. Although it doesn't talk about border widths explicitliy, the HelpOnTables seems to point to this : tablestyle=width: 80%; border: 0; But that does nothing to the border lines. Adjusting width in the same line does work to change the size of the table, but it doesn't seem to understand 'border'. Anyone know how to make the borders disappear? Thanks Mark I would try a stylesheet forum or an (X)HTML forum for this question, but first look here, http://lynx.fnal.gov/runjob/HelpOnConfiguration/CascadingStyleSheets and then look here, http://www.w3.org/TR/REC-CSS2/tables.html#borders But, if the information you're putting in the table is not true tabular data, consider more semantic markup. -- mbstevens http://www.mbstevens.com/cgi/mkatt.pl?name=python/Critique_Generator -- http://mail.python.org/mailman/listinfo/python-list
ANN: Binary Distribution of pyMinGW-241
This is to inform those interested in Python and MinGW that a binary distribution of pyMinGW-241 is now available. This is mainly a packaging of the March release in binary form for those who are finding it difficult to build Python or its standard extensions in MinGW. WHAT'S INSIDE - - pyMinGW-License - pyMinGW-Readme - Python-License - python.exe - python24.dll - pythonw.exe - w9xpopen.exe - python_icon.exe + Dlls: - tcl84.dll - tclpip84.dll - tk84.dll - zlib.pyd - _bsddb.pyd - _socket.pyd (Without IPv6 support, as MinGW still lacks it) - _ssl.pyd - _testcapi.pyd - _tkinter.pyd - bz2.pyd - pyexpat.pyd - select.pyd - unicodedata.pyd - winsound.pyd + Include: pyconfig.h + Lib: + distutils + command - build_ext.py - ccompiler.py - cygwinccompiler.py - unixccompiler.py + Libs: - libpython24.a + tcl: + tcl84 + tk84 Get it from here: http://jove.prohosting.com/iwave/ipython/pyMinGW.html Regards Khalid -- http://mail.python.org/mailman/listinfo/python-list
Well, another try Re: while c = f.read(1)
On 18 Aug 2005 22:21:53 -0700 Greg McIntyre wrote: f = open(blah.txt, r) while True: c = f.read(1) if c == '': break # EOF # ... work on c Is some way to make this code more compact and simple? It's a bit spaghetti. This is what I would ideally like: f = open(blah.txt, r) while c = f.read(1): # ... work on c for data in iter(lambda:f.read(1024), ''): for c in data: # ... work on c -- jk -- http://mail.python.org/mailman/listinfo/python-list
[ python-Bugs-1264168 ] PyArg_ParseTupleAndKeywords doesn't handle I format correctl
Bugs item #1264168, was opened at 2005-08-19 19:31 Message generated for change (Comment added) made by birkenfeld You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1264168group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Interpreter Core Group: None Status: Closed Resolution: Duplicate Priority: 5 Submitted By: John Finlay (finlay648) Assigned to: Nobody/Anonymous (nobody) Summary: PyArg_ParseTupleAndKeywords doesn't handle I format correctl Initial Comment: PyArg_ParseTupleAndKeywords fails with the message; ...impossiblebad format char when parsing an optional keyword param using I format. Using Python 2.3.5 but also observed in Python 2.4.x The problem is a missing I handler in the skipitem function. I've attached a proposed patch. -- Comment By: Reinhold Birkenfeld (birkenfeld) Date: 2005-08-19 20:18 Message: Logged In: YES user_id=1188172 Duplicate of #893549. See patch #1212928 to fix all missing format codes. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1264168group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com