London Python meetup, Wednesday, December the 5th
Details here: http://tinyurl.com/2cvtlq -- Cheers, Simon B. [EMAIL PROTECTED] http://www.brunningonline.net/simon/blog/ GTalk: simon.brunning | MSN: small_values | Yahoo: smallvalues -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: webbrowser.open still gives problem with file://
En Mon, 12 Nov 2007 16:18:06 -0300, krishnakant Mane [EMAIL PROTECTED] escribió: some days bac I posted a problem about webbrowser.open() not opening the file on the local machine. I get a few responses and I tryed working it out. I also refered to the cookbook example posted on that thread. I still can't figure out why webbrowser.open(file:///home/krishna/documents/tut.html) does not open the file. as I mentioned earlier the url in the addressbar of mozilla firefox 3 alpha is file:///home/krishna//home/krishna/documents/tut.html which is indeed wrong. I can think of two alternatives: 1) omit the file: protocol, and just use the absolute file path, like webbrowser.open(/home/krishna/documents/tut.html) 2) use this recipe http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/347810 which lets you display content inside a browser window without requiring a temporary file. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: How to get a set of keys with largest values?
On Nov 12, 1:07 am, Davy [EMAIL PROTECTED] wrote:
Hi all,
I have a dictionary with n elements, and I want to get the m(m=n)
keys with the largest values.
For example, I have dic that includes n=4 elements, I want m=2 keys
have the largest values)
dic = {0:4,3:1,5:2,7:8}
So, the the largest values are [8,4], so the keys are [7,0].
Is there any fast way to implement this algorithm?
Any suggestions are welcome!
Best regards,
Davy
#get a list of tuples, with value in 1st position, key second
li = [(value,key) for key, value in dic.items()]
#sort the list
li.sort()
m = 2
#grab the m highest values, from the end of the list
li_high_keys = [k for v, k in li[-m:]]
p.s. sorry if this ends up appearing multiple times, google groups can
be a bit cranky at times with postings.
--
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Re: Define key in nlargest() of heapq?
Davy [EMAIL PROTECTED] wrote:
Hi all,
I have a dictionary with n elements, and I want to get the m(m=n)
keys with the largest values.
For example, I have dic that includes n=4 elements, I want m=2 keys
have the largest values)
dic = {0:4,3:1,5:2,7:8}
So, the the largest values are [8,4], so the keys are [7,0].
How to do this by nlargest() of heapq? I have tried
nlargest(2,dic,key),
the interpreter give out:
Traceback (most recent call last):
File interactive input, line 1, in module
NameError: name 'key' is not defined
Best regards,
Davy
You could use the code I posted for you yesterday. See message
http://groups.google.co.uk/group/comp.lang.python/browse_frm/thread/83c10e0c67e566d8/a605259c41c78fa0?lnk=gstq=duncan+booth#a605259c41c78fa0
--
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Re: Override method name and original method access
En Tue, 13 Nov 2007 01:45:31 -0300, Donn Ingle [EMAIL PROTECTED] escribió: You need to be a new-style class (that is, you must inherit from object) for super() to work. Problem is that my classes inherit already, from others I wrote. So, should I explicitly put (object) into the ones at the top? Changing from old-style to new-style classes may have some unintended side effects. You may prefer keeping your old-style classes and avoid using super, if you don't have multiple inheritance. Just call explicitely the base class. Other than that, you are using it correctly here. Well, even with One.add(stuff) it seems to be calling to local overridden method. In a bit of a hurry, so can't test again right now. Remember that you must pass `self` explicitely. That is: class One: def __init__(self): self.stuff = [] def add (self, stuff): self.stuff.append(stuff) class Two(One): def __init__(self, otherstuff): One.__init__(self) One.add(self, otherstuff) self.unrelated = [] def add (self, data): self.unrelated.append(data) py x = One() py x.add(1) py x.stuff [1] py y = Two(2) py y.add(3) py y.stuff [2] py y.unrelated [3] -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
RE: Populating a dictionary, fast [SOLVED]
See end for solution. (3) Are you sure you need all eight-million-plus items in the cache all at once? Yes. I remain skeptical, but what do I know, I don't even know what you're doing with the data once you have it :-) It's OK, I'd be skeptical too. ;) $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ stepping: 1 cpu MHz : 1000.000 cache size : 512 KB ... processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ stepping: 1 cpu MHz : 1000.000 cache size : 512 KB # cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 5 model name : AMD Opteron(tm) Processor 246 stepping: 10 cpu MHz : 2009.305 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow bogomips: 3981.31 TLB size: 1088 4K pages clflush size: 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 5 model name : AMD Opteron(tm) Processor 246 stepping: 10 cpu MHz : 2009.305 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow bogomips: 4014.08 TLB size: 1088 4K pages clflush size: 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp As for the solution, after trying a half-dozen different integer hashing functions and hash table sizes (the brute force approach), on a total whim I switched to a model with two dictionary tiers and got whole orders of magnitude better performance. The tiering is, for a given key of type long: id2name[key 40][key 0x100] = name Much, much better. A few minutes versus hours this way. I suspect it could be brought down to seconds with a third level of tiers but this is no longer posing the biggest bottleneck... ;) Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 11, 11:39 pm, Paul Rubin http://[EMAIL PROTECTED] wrote: Russell Warren [EMAIL PROTECTED] writes: Wing now has multi-threaded debugging. Cool, is it windows-only? I'm using Linux. A quick look at the current state of SPE shows that it now has multi- threaded debugging viaWinPDB(what I used to use for debugging thread issues). Interesting. Worth a look to see if it is integrated well. Same issue: this also sounds windows-specific. Thanks though. Winpdb may sound to you as windows specific but it actually googles up as platform independent. Those of you who dare work with a bunch of separate development tools (oh, the terror, ugh...) instead of an IDE will find it to be one of the best Python debuggers around. -- http://mail.python.org/mailman/listinfo/python-list
Re: templatetaizing exceptions
En Tue, 13 Nov 2007 01:09:12 -0300, alf [EMAIL PROTECTED] escribió: I have a few places in the code where I use: try: code_block except A: exception_handling the code block is different each time while exception_handling the same. What would be the best technique to abstract that out? A function? try: code_block except A: handle_exception() -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: why there is no pythonscript insine web browsers?
One option would be to use jython in conjunction with something like the google web toolkit(gwt). that way you can write python code, it will be translated into java by jython (I believe that's how it works) and then gwt will translate the java into javascript. I haven't done this myself (and it seems to be quite a roundabout way of getting it done) but it *should* work. Alternatively you might want to try something like microsoft silverlight which runs on the .Net framework and allows you to use ironpython without any hacks. But that's only if you don't mind using propreitry software or installing the silverlight runtime. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to get a set of keys with largest values?
On Nov 12, 1:07 am, Davy [EMAIL PROTECTED] wrote:
Hi all,
I have a dictionary with n elements, and I want to get the m(m=n)
keys with the largest values.
For example, I have dic that includes n=4 elements, I want m=2 keys
have the largest values)
dic = {0:4,3:1,5:2,7:8}
So, the the largest values are [8,4], so the keys are [7,0].
Is there any fast way to implement this algorithm?
Any suggestions are welcome!
Best regards,
Davy
#get a list of tuples, with value in 1st position, key second
li = [(value,key) for key, value in dic.items()]
#sort the list
li.sort()
m = 2
#grab the m highest values, from the end of the list
li_high_keys = [k for v, k in li[-m:]]
--
http://mail.python.org/mailman/listinfo/python-list
Re: Binary search tree
En Mon, 12 Nov 2007 16:21:36 -0300, Scott SA [EMAIL PROTECTED] escribió:
I decided to test the speeds of the four methods:
(but one should always check for correctness before checking speed)
def dict_example(urls):
d = {}
for url in urls:
if url in d:
d[url] = 1
The above does nothing more than iterate over all urls.
For the simple quest of Find the unique URLs in a list, the 'dict'
example is by far the quickest.
After correction, there is no significative difference between
dict_example and set_example (sometimes one is slightly slower than the
other, and sometimes it's the other way). But the simpler s = set(urls)
suggested by Terry Reedy clearly wins (at least on my tests).
Buuut, if you need the indexes and possibly a 'hit count', then the
enumerated example seems about the best (of the possibilities tested)
In this case there is another alternative using defaultict:
def defaultdict_example(urls):
d = defaultdict(list)
for idx,url in enumerate(urls):
d[url].append(idx)
which is faster than setdefault_enum (again, on my tests).
Another point worth menction, I did shuffle(dummy_urls) before testing.
Having all of them ordered may introduce some bias.
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
error :list out of range
hi everybody,
I have written a code to check which is the lowest value in a
list
my list:
['94', 'A_16_P03647505', '-59', '42', 'A_16_P41573860', '-44', '513',
'A_16_P41573861', '-44', '66', 'A_16_P41573862', '-44', '327',
'A_16_P03647506', '-46', '77', 'A_16_P41573864', '-59', '52',
'A_16_P03647507', '-59', '307', 'A_16_P41573865', '-59', '111',
'A_16_P03647508', '-59', '167', 'A_16_P41573867', '-48', '223',
'A_16_P03647509', '-45', '124', 'A_16_P41573869', '-54', '206',
'A_16_P03647510', '-59', '52', 'A_16_P41573870', '-52', '549',
'A_16_P03647511', '-59', '2976']
mycode:
res_value = []
fh = open('test','r')
for line in fh.readlines():
data = line.strip().split('\t')
current_span = data[3].strip()
probe = data[2].strip()
length = data[4].strip()
res_value.append(current_span)
res_value.append(probe)
res_value.append(length)
#omplete_dataset.append(res_value)
fh.close()
for k in range(0,len(res_value),3):
check = res_value[k:k+4]
if check[0] check[4]:
print check
error: File app.py, line 16, in module
if check[0] check[4]:
IndexError: list index out of range
i get an error like this how do i sort the error out to get result
--
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Re: Arrays
On Nov 13, 2007 6:58 AM, John Machin [EMAIL PROTECTED] wrote: Hey Bernard, read Gordon's message carefully; he's asking about arrays, not lists. Chances are a list is exactly what the OP wants. -- Cheers, Simon B. [EMAIL PROTECTED] http://www.brunningonline.net/simon/blog/ GTalk: simon.brunning | MSN: small_values | Yahoo: smallvalues -- http://mail.python.org/mailman/listinfo/python-list
Re: templatetaizing exceptions
On Tue, 13 Nov 2007 06:17:26 -0300, Gabriel Genellina wrote: A function? try: code_block except A: handle_exception() maybe def handle(f, *args, **kw): ... try: ... return f(*args, **kw) ... except A: ... handle_exception() def doSomething(): ...code_block ... handle(doSomething) cheers -- http://mail.python.org/mailman/listinfo/python-list
Re: 2007.comp.lang.python
Is this headline a demand for Ruby style DSLs in Python? -- http://mail.python.org/mailman/listinfo/python-list
Re: why there is no pythonscript insine web browsers?
On Nov 13, 3:07 am, Dennis Lee Bieber [EMAIL PROTECTED] wrote: On Mon, 12 Nov 2007 20:07:38 +0200, Timuçin K?z?lay [EMAIL PROTECTED] declaimed the following in comp.lang.python: python support? there is even a vbscript support inside MS-IE but there is no python support. it would be really nice and easy for me to use python instead of javascript to write those ajax scripts. Javascript is meant to, basically, control the browser and the contents of HTML pages sent to it. [snip] Python can not be safely sand-boxed (and the early restricted mode modules have been removed for that reason). Why can't it be safely sandboxed? That is, why not just have a Python interpreter and some safe subset of the Python standard library run with the browser? I mean, aside from the work involved with combing out the unneeded or dangerous parts of the standard lib, it seems like it would be much nicer to just use Python syntax and modules rather than having to fool around with Javascript. -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 10, 4:48 am, Paul Rudin [EMAIL PROTECTED] wrote: jwelby [EMAIL PROTECTED] writes: The main reason I have used Eclipse for larger, team based, projects is for the source control plug-ins. Eclipse has plug-in support for cvs and svn. PyScripter may have this too - perhaps I've missed it. (I'm away from my Windows box at the moment, otherwise I would check). Of course, there are other ways to implement source control without it needing to be integrated in the IDE, so even this need not put off anyone who wants to use PyScripter with source control. [snip] I'm not sure if you count emacs as lightweight but it's certainly less resource hungry than eclipse/pydev, and does have integrated cvs/svn functionality. I've never understood the desire for using your version control software via your IDE. Why not just Alt-Tab over to your terminal window and run the svn/bzr/hg/git/whatever commands yourself right from there? -- http://mail.python.org/mailman/listinfo/python-list
Re: Binary search tree
On 11/13/07, Terry Reedy ([EMAIL PROTECTED]) wrote:
Scott SA [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
| On 11/12/07, Scott SA ([EMAIL PROTECTED]) wrote:
| I decided to test the speeds of the four methods:
|
|set_example
|s = set()
|for url in urls:
|if not url in s:
|s.add(url)
How is that different in result from
As mentioned in my earlier post, I'm fairly new to Python so many options are
unknown to me (even then, there are often new ideas or approaches even for
seasoned coders, I'm not looking forward to the days when I stop learning ;-).
set_example2
s = set(urls)
Well, that's pretty sweet. Thanks for the heads-up on that!
which would be much faster, faster, I would expect, than
Please see below, it is the 'set2' result
|dict_example
|d = {}
|for url in urls:
|if url in d:
|d[url] = 1
Note:
There was an erorr in this, it was missing a 'not'
so it should have been:
dict_example
d = {}
for url in urls:
if not url in d:
d[url] = 1
|Starting tests with 50 simulated URLs run 3 times.
|
|'set' example
|run time: 0.5505 seconds
|'dict' example
|run time: 0.2521 seconds
Starting tests with 50 simulated URLs run 3 times.
'set' example
run time: 0.8626 seconds
5000 unique URLs
'set2' example
run time: 0.4896 seconds
5000 unique URLs
'dict' example
run time: 0.4296 seconds
5000 unique URLs
'setdefault' example
run time: 0.9723 seconds
5000 unique URLs
Interestingly, the 'dict' method is still the champ for the simulations I
created. Of course a different ratio of duplication within the source list
could have an effect on performance, size of list (and I'm sure other
environmental circumstances) would affect mileage.
Since my earlier posts, I found and re-read the original post:
I have to get list of URLs one by one and to find the
URLs that I have more than one time(can't be more than
twice).
My re-interpretation of his needs were that there could be no more than two
URL's. This means to me that not only did he require the unique 'set' but also
needed to _count_ URL hits and subsequently process any overages.
From my testing, the following _seems_ to be the best performer:
def dictcount_example(urls):
d = {}
for url in urls:
if url in d:
d[url] += 1
if d[url] 2:
proc_overage(url) # handle overage
else:
d[url] = 1
return d
Without the 'if' statement (I added it for functional completeness), it
performed as follows:
Starting tests with 50 simulated URLs run 3 times.
'dictcount' example
run time: 1.1556 seconds
5000 unique URLs
... Curiosity got me going, so I reduced the numbers of redundancies from 100
to 5 and the unique URLs to 100,000. The results are:
Starting tests with 50 simulated URLs run 3 times.
'set' example
run time: 1.1986 seconds
10 unique URLs
'set2' example
run time: 0.5986 seconds
10 unique URLs
'dict' example
run time: 0.8676 seconds
10 unique URLs
'dictcount' example
run time: 1.3631 seconds
10 unique URLs
So, the set() functionality in Python appears better with smaller amm'ts of
redundancy. Still, evaluating 1/2 mil. URLs in sub-second timeframes is a
respectable, in my opinion, pace. Esp. when one considers the call is _one_
line!
Scaled to 2,000,000 URLs total and 1,000,000 unique URLs, the timings are
interesting:
Starting tests with 200 simulated URLs run 3 times.
'set' example
run time: 7.9292 seconds
100 unique URLs
'set2' example
run time: 4.6351 seconds
100 unique URLs
'dict' example
run time: 5.0060 seconds
Re: Looking for a good Python environment
On Nov 13, 10:56 am, bramble [EMAIL PROTECTED] wrote: On Nov 10, 4:48 am, Paul Rudin [EMAIL PROTECTED] wrote: jwelby [EMAIL PROTECTED] writes: The main reason I have used Eclipse for larger, team based, projects is for the source control plug-ins. Eclipse has plug-in support for cvs and svn. PyScripter may have this too - perhaps I've missed it. (I'm away from my Windows box at the moment, otherwise I would check). Of course, there are other ways to implement source control without it needing to be integrated in the IDE, so even this need not put off anyone who wants to use PyScripter with source control. [snip] I'm not sure if you count emacs as lightweight but it's certainly less resource hungry than eclipse/pydev, and does have integrated cvs/svn functionality. I've never understood the desire for using your version control software via your IDE. Why not just Alt-Tab over to your terminal window and run the svn/bzr/hg/git/whatever commands yourself right from there? Because it saves you from having to do this. Some people prefer all their commands in one place. And GUI wise it is often easier to click the button showing all previouis versions, or comparing two of them visually. I use Eclipse with ClearCase and it saves me a great deal of trouble when dealing with 100+ files... -- http://mail.python.org/mailman/listinfo/python-list
Re: error :list out of range
En Tue, 13 Nov 2007 06:23:02 -0300, Beema shafreen
[EMAIL PROTECTED] escribió:
for k in range(0,len(res_value),3):
check = res_value[k:k+4]
if check[0] check[4]:
print check
error: File app.py, line 16, in module
if check[0] check[4]:
IndexError: list index out of range
i get an error like this how do i sort the error out to get result
Look at the exception: IndexError: list index out of range. That's pretty
explicit: some index used as a subscript on some list is out of the
allowed range. Most of the time, that means that the index is greater than
or equal to the list length. Now look at the source line: if check[0]
check[4]. The possible out-of-range indexes are 0 and 4. 0 may be an
invalid index when the list is empty; but the 4 is much more suspicious.
We have to determine the length of the check list; that's easy looking
one line above; res_value[k:k+4] has length 4. Valid indexes include 0, 1,
2, and 3; 4 is an invalid index.
Now you should have enough info to fix your code. But, why use a flat
list? Your data has certain structure, and you already read it line by
line and use different variable names for each field. If you maintain that
structure instead of flattening it into a list with anonymous elements,
your code will be easier to write (and read, and understand).
Your file looks like a CSV file, and you could use the cvs module to read
it. Let's read the file the same way you did, but using an object per row:
class ProbeData: # please choose a better name!
Holds current_span, probe, and length
def __init__(self, current_span, probe, length):
self.current_span = current_span
self.probe = probe
self.length = length
def __str__(self):
return %d %s %d % (self.current_span, self.probe, self.length)
__repr__ = __str__
dataset = []
fh = open('test','r')
for line in fh: # note that I've removed readlines()
data = line.strip().split('\t')
current_span = int(data[3].strip()) # assuming it's an integer
probe = data[2].strip()
length = int(data[4].strip()) # assuming it's an integer too
probe_data = ProbeData(current_span, probe, length)
dataset.append(probe_data)
fh.close()
for k in range(len(dataset)-1):
this_probe = dataset[k]
next_probe = dataset[k+1]
if this_probe.current_span next_probe.current_span:
# Please check the condition above, it's just an example
print this_probe
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
Re: Arrays
On Nov 13, 8:36 pm, Simon Brunning [EMAIL PROTECTED] wrote: On Nov 13, 2007 6:58 AM, John Machin [EMAIL PROTECTED] wrote: Hey Bernard, read Gordon's message carefully; he's asking about arrays, not lists. Chances are a list is exactly what the OP wants. Chances are a list is what he *needs*. However he explicitly referred to the array module array, not some generic array concept. Serial processing of the tutorial should have clued him in on Python lists way before he arrived at the mention of the array module. -- http://mail.python.org/mailman/listinfo/python-list
Re: Issue with wxPython GUI
Hi Laszlo Nagy, Thanks a lot. But the issue over here is that how will the child thread acknowledge the main thread that it has completed its task. For this I'll have to set some flag in the child thread and poll for it in the main thread. This will create a problem. Any alternatives?? Thanks Regards, Tarun On 11/13/07, Laszlo Nagy [EMAIL PROTECTED] wrote: *New Problem: *I am opening and executing a script from the GUI. The script has a many log messages, which it posts on some shared memory. The GUI reads the messages from the shared memory, in the Idle loop. But the script is huge and so the logging is not run-time. Rather this happens only after the script has executed. Moreover, the GUI becomes un-responsive till the script has completely executed. This is (probably) because you are running your script in your main thread. While the main thread of the application is running, your windowing system cannot process message queues. Since the updating of a text control uses window messages, it has no chance to process them. I recommend that you run your script in a separate (terminateable?) thread, send your messages into a Queue instance, and load messages from that queue in your main thread. Do you have any suggestions for this? Well, if you do not want to create more threads, it migth work if you call this periodically from your main thread (but I did not try this): wxApp::Dispatch *virtual void* *Dispatch*() Dispatches the next event in the windowing system event queue. This can be used for programming event loops, e.g. while (app.Pending()) Dispatch(); -- http://mail.python.org/mailman/listinfo/python-list
Loop three lists at the same time?
Hi all, I have three lists with the same length. Is there any method to loop the three lists without a loop counter? Best regards, Davy -- http://mail.python.org/mailman/listinfo/python-list
Re: Loop three lists at the same time?
Davy wrote: Hi all, I have three lists with the same length. Is there any method to loop the three lists without a loop counter? Best regards, Davy Hello, the zip function? list1 = [1,2,3] list2 = [4,5,6] list3 = [7,8,9] for a,b,c in zip(list1,list2,list3): ...print a, b, c ... 1 4 7 2 5 8 3 6 9 hth j. -- http://mail.python.org/mailman/listinfo/python-list
Re: A JEW hacker in California admits distributing malware that let him steal usernames and passwords for Paypal accounts.
You are comparing white collar criminals with Islamic terrorists who strap on explosive vests and blow themselves up inside the mosques of those who follow a slightly different version of Islam. The internet needs licensing so we can revoke yours. [EMAIL PROTECTED] wrote: The Jews and Israelis the top notch WHITE COLLAR CRIMINALS, YET, they are harassing MOSLEMS in CALIFORNIA. Do you know why ? BECAUSE ALL THE POLITICIANS ARE IN THEIR POCKET. Los Angeles Police Department Deputy Chief Michael P. Downing, who heads the bureau, defended the undertaking as a way to help Muslim communities avoid the influence of those who would radicalize Islamic residents and advocate violent, ideologically-based extremism. We are seeking to identify at-risk communities, Downing said in an interview Thursday evening. We are looking for communities and enclaves based on risk factors that are likely to become isolated. . . . We want to know where the Pakistanis, Iranians and Chechens are so we can reach out to those communities. 911 carried out by evil jews and mossad Rothschilds financed APARTHEID in South Africa. They corrupted Cecil Rhodes, the son of an anglican minister, by TEACHING him evil techniques of apartheid. Apartheid was taught to him by the father zionists themselves. Was Hitler's father a bastard son of Rothschilds? Did the Salomon Mayer von Rothschild perhaps rape Maria Anna Schicklgruber in dark so that she could not ever claim with certainty who the real father was? Look at his facial features, typical central asian khazar. What was the cause of Hitler's fanatical hatred for the Jews ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Loop three lists at the same time?
On Nov 13, 11:46 am, Davy [EMAIL PROTECTED] wrote: Hi all, I have three lists with the same length. Is there any method to loop the three lists without a loop counter? Best regards, Davy What exactly do you mean? Are you trying to loop them together with the same ´count´. for loop in zip(1,2,3) kind of thing or something else. Please either post a more descriptive question, or your current code. Coko -- http://mail.python.org/mailman/listinfo/python-list
Directorio europeo de arte y diseño
MARC3ART - GUÍA EUROPEA DE ARTE Y DISEÑO ofrece de manera ordenada, detallada y actualizada información sobre eventos artísticos-culturales y de diseño de interés para personas relacionadas con el medio. Ofrece de manera permanente calendario de exposiciones, concursos de arte, convocatorias y premios de diseño, así como cualquier otra especialidad artística (dibujo, arquitectura, literatura, animación, cine, ...), cursos, conferencias, ciclos, talleres, sección de becas de arte y diseño, fotografía, agencias, estudios de diseño, publicidad etc. www.marc3art.eu -- http://mail.python.org/mailman/listinfo/python-list
Re: Loop three lists at the same time?
En Tue, 13 Nov 2007 07:46:09 -0300, Davy [EMAIL PROTECTED] escribió: I have three lists with the same length. Is there any method to loop the three lists without a loop counter? Try zip or itertools.izip: py L1 = ['a','b','c'] py L2 = [1, 2, 3] py L3 = ['I', 'II', 'III'] py from itertools import izip py for x,y,z in izip(L1,L2,L3): ... print x,y,z ... a 1 I b 2 II c 3 III -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: why there is no pythonscript insine web browsers?
bramble wrote: On Nov 13, 3:07 am, Dennis Lee Bieber [EMAIL PROTECTED] wrote: On Mon, 12 Nov 2007 20:07:38 +0200, Timuçin K?z?lay [EMAIL PROTECTED] declaimed the following in comp.lang.python: python support? there is even a vbscript support inside MS-IE but there is no python support. it would be really nice and easy for me to use python instead of javascript to write those ajax scripts. Javascript is meant to, basically, control the browser and the contents of HTML pages sent to it. [snip] Python can not be safely sand-boxed (and the early restricted mode modules have been removed for that reason). Why can't it be safely sandboxed? That is, why not just have a Python interpreter and some safe subset of the Python standard library run with the browser? I mean, aside from the work involved with combing out the unneeded or dangerous parts of the standard lib, it seems like it would be much nicer to just use Python syntax and modules rather than having to fool around with Javascript. The problem is that building such an environment would mean building it up from scratch instead of trying to secure the existing one - wich quite a few people tried, and failed. So it's more than just creating a sandbox, it's keeping track with CPython's language features and lib-advances as well. There are two projects I aware of that might help, IronPython Jython. The latter had some hard times getting up to python 2.2 (important for the new style classes support), but now it's finished in that respect so hopefully we will see more frequent releases of it, with newer python version support. And all this still doesn't tackle the fact that at least one, not to say THE browser vendor won't adopt python just for the fun of it - they even don't taclke the flaws of the existing product. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Issue with wxPython GUI
tarun írta: Hi Laszlo Nagy, Thanks a lot. But the issue over here is that how will the child thread acknowledge the main thread that it has completed its task. For this I'll have to set some flag in the child thread and poll for it in the main thread. This will create a problem. What kind of problem, can you explain? Supposing your child (worker) thread created the output, I would do it this way (untested): class Child(threading.Thread): def __init__(self,output): self.stop_requested = threading.Event() self.stopped = threading.Event() self.output = output def run(self): try: while not self.stop_requested.isSet(): # put your algorithm here # but check periodically if you need to abort the job. if self.stop_requested.isSet(): break ... # when you have data, put into the output queue self.output.put( your_output ) finally: self.stopped.set() -- And then, from the main thread, create the worker: self.queue = Queue() self.child = Child(self.queue) -- wxApp.OnIdle: if not self.queue.empty(): data = self.queue.get() # display your data here, for example add to a text control. if self.child.stopped.isSet(): add_log(Job compete) # tell the user what is going on And finally, you can have a button for stopping the script: def OnClick(self,event): self.child.stop_requested.set() add_log(stopping worker thread) # tell the user what is going on Any alternatives?? First you should tell us what is the problem with using two threads. Regards, Laszlo -- http://mail.python.org/mailman/listinfo/python-list
Re: Issue with wxPython GUI
Thanks a lot Laszlo Nagy,
I used the following and it worked.
import time
from threading import *
import wx
# Button definitions
ID_START = wx.NewId()
ID_STOP = wx.NewId()
# Define notification event for thread completion
EVT_RESULT_ID = wx.NewId()
def EVT_RESULT(win, func):
Define Result Event.
win.Connect(-1, -1, EVT_RESULT_ID, func)
class ResultEvent(wx.PyEvent):
Simple event to carry arbitrary result data.
def __init__(self, data):
Init Result Event.
wx.PyEvent.__init__(self)
self.SetEventType(EVT_RESULT_ID)
self.data = data
# Thread class that executes processing
class WorkerThread(Thread):
Worker Thread Class.
def __init__(self, notify_window):
Init Worker Thread Class.
Thread.__init__(self)
self._notify_window = notify_window
self._want_abort = 0
# This starts the thread running on creation, but you could
# also make the GUI thread responsible for calling this
self.start()
def run(self):
Run Worker Thread.
# This is the code executing in the new thread. Simulation of
# a long process (well, 10s here) as a simple loop - you will
# need to structure your processing so that you periodically
# peek at the abort variable
for i in range(10):
time.sleep(1)
if self._want_abort:
# Use a result of None to acknowledge the abort (of
# course you can use whatever you'd like or even
# a separate event type)
wx.PostEvent(self._notify_window, ResultEvent(None))
return
# Here's where the result would be returned (this is an
# example fixed result of the number 10, but it could be
# any Python object)
wx.PostEvent(self._notify_window, ResultEvent(10))
def abort(self):
abort worker thread.
# Method for use by main thread to signal an abort
self._want_abort = 1
# GUI Frame class that spins off the worker thread
class MainFrame(wx.Frame):
Class MainFrame.
def __init__(self, parent, id):
Create the MainFrame.
wx.Frame.__init__(self, parent, id, 'Thread Test')
# Dumb sample frame with two buttons
wx.Button(self, ID_START, 'Start', pos=(0,0))
wx.Button(self, ID_STOP, 'Stop', pos=(0,50))
self.status = wx.StaticText(self, -1, '', pos=(0,100))
self.Bind(wx.EVT_BUTTON, self.OnStart, id=ID_START)
self.Bind(wx.EVT_BUTTON, self.OnStop, id=ID_STOP)
# Set up event handler for any worker thread results
EVT_RESULT(self,self.OnResult)
# And indicate we don't have a worker thread yet
self.worker = None
def OnStart(self, event):
Start Computation.
# Trigger the worker thread unless it's already busy
if not self.worker:
self.status.SetLabel('Starting computation')
self.worker = WorkerThread(self)
def OnStop(self, event):
Stop Computation.
# Flag the worker thread to stop if running
if self.worker:
self.status.SetLabel('Trying to abort computation')
self.worker.abort()
def OnResult(self, event):
Show Result status.
if event.data is None:
# Thread aborted (using our convention of None return)
self.status.SetLabel('Computation aborted')
else:
# Process results here
self.status.SetLabel('Computation Result: %s' % event.data)
# In either event, the worker is done
self.worker = None
class MainApp(wx.App):
Class Main App.
def OnInit(self):
Init Main App.
self.frame = MainFrame(None, -1)
self.frame.Show(True)
self.SetTopWindow(self.frame)
return True
if __name__ == '__main__':
app = MainApp(0)
app.MainLoop()
Thanks Regards,
Tarun
On 11/13/07, Laszlo Nagy [EMAIL PROTECTED] wrote:
tarun írta:
Hi Laszlo Nagy,
Thanks a lot.
But the issue over here is that how will the child thread acknowledge
the main thread that it has completed its task. For this I'll have to
set some flag in the child thread and poll for it in the main thread.
This will create a problem.
What kind of problem, can you explain? Supposing your child (worker)
thread created the output, I would do it this way (untested):
class Child(threading.Thread):
def __init__(self,output):
self.stop_requested = threading.Event()
self.stopped = threading.Event()
self.output = output
def run(self):
try:
while not self.stop_requested.isSet():
# put your algorithm here
# but check periodically if you need to abort the job.
if self.stop_requested.isSet():
break
...
# when you have data, put into the output queue
[OT] The Jew Spam on this list
Hello, please do not respond to the political spam on this list anymore. Rather report it as spam to your provider/anti-spam-measures or report it to the listmasters (if you have the feeling that it helps, I guess they're already on this issue). I understand that this might be a heated topic but people please it's just spam and every message regarding this topic is spam too (funny enough, so is this message) please just add this stuff to your killfile or whatever you use. thanks martin PS: if you must discuss this opinion with me answer to me off list as I guess most people just aren't interested... -- http://noneisyours.marcher.name http://feeds.feedburner.com/NoneIsYours -- http://mail.python.org/mailman/listinfo/python-list
Re: Distributed RVS, Darcs, tech love
Lew [EMAIL PROTECTED] (L) wrote: L Evidence is that TeX development is dead. There is not yet firm evidence L that Tex is a dead end (or even what that means), and there has been none L (nor, I expect, is there any) that any of that reflects on Knuth's skill as L a programmer. According to Knuth's definition the name 'TeX' is reserved for a program that passes the trip test. Under this assumption TeX is dead by definition. However in a broader sense TeX is still actively developed, but it may not be called just 'TeX' because these new versions contain extensions. So they get new names with 'tex' being part of their name. PdfTeX and LuaTeX are new versions that are being developed right now. -- Piet van Oostrum [EMAIL PROTECTED] URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4] Private email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: A JEW hacker in California admits distributing malware that let him steal usernames and passwords for Paypal accounts.
[EMAIL PROTECTED] wrote: A Jew hacker in California admits distributing malware that let him steal usernames and passwords for Paypal accounts. Just like all the Goy hackers who have done the same kind of wrongful deed. Bob Kolker -- http://mail.python.org/mailman/listinfo/python-list
Re: A JEW hacker in California admits distributing malware that let him steal usernames and passwords for Paypal accounts.
___ /| /| | | ||__|| | Please do | / O O\__ NOT | / \ feed the| / \ \ trolls | / _\ \ __| /|\\ \ || / | | | |\/ || / \|_|_|/ \__|| / / \|| || / | | /|| --| | | |// | --| * _| |_|_|_| | \-/ *-- _--\ _ \ // | / _ \\ _ // |/ * / \_ /- | - | | * ___ c_c_c_C/ \C_c_c_c -- Hendrik Maryns http://tcl.sfs.uni-tuebingen.de/~hendrik/ == http://aouw.org Ask smart questions, get good answers: http://www.catb.org/~esr/faqs/smart-questions.html signature.asc Description: OpenPGP digital signature -- http://mail.python.org/mailman/listinfo/python-list
Re: templatetaizing exceptions
david wrote: On Tue, 13 Nov 2007 06:17:26 -0300, Gabriel Genellina wrote: A function? try: code_block except A: handle_exception() maybe def handle(f, *args, **kw): ... try: ... return f(*args, **kw) ... except A: ... handle_exception() def doSomething(): ...code_block ... handle(doSomething) cheers thx - this might work ... -- alfz1 -- http://mail.python.org/mailman/listinfo/python-list
Re: Issue with wxPython GUI
On Nov 13, 6:18 am, Laszlo Nagy [EMAIL PROTECTED] wrote: tarun írta: Hi Laszlo Nagy, Thanks a lot. But the issue over here is that how will the child thread acknowledge the main thread that it has completed its task. For this I'll have to set some flag in the child thread and poll for it in the main thread. This will create a problem. What kind of problem, can you explain? Supposing your child (worker) thread created the output, I would do it this way (untested): class Child(threading.Thread): def __init__(self,output): self.stop_requested = threading.Event() self.stopped = threading.Event() self.output = output def run(self): try: while not self.stop_requested.isSet(): # put your algorithm here # but check periodically if you need to abort the job. if self.stop_requested.isSet(): break ... # when you have data, put into the output queue self.output.put( your_output ) finally: self.stopped.set() -- And then, from the main thread, create the worker: self.queue = Queue() self.child = Child(self.queue) -- wxApp.OnIdle: if not self.queue.empty(): data = self.queue.get() # display your data here, for example add to a text control. if self.child.stopped.isSet(): add_log(Job compete) # tell the user what is going on And finally, you can have a button for stopping the script: def OnClick(self,event): self.child.stop_requested.set() add_log(stopping worker thread) # tell the user what is going on Any alternatives?? First you should tell us what is the problem with using two threads. Regards, Laszlo I run separate tasks in a separate thread. See http://wiki.wxpython.org/LongRunningTasks for more details. You should also look at the wxPython demo as it has some examples of using threads in it. One other way to post messages to the main thread is by using pubsub. This link describes it: http://wiki.wxpython.org/ModelViewController as does this: http://www.wxpython.org/docs/api/wx.lib.pubsub-module.html HTH Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: Issue with wxPython GUI
tarun wrote: Thanks a lot Laszlo Nagy, I used the following and it worked. I thought this is a producer/consumer scenario, this is why I suggested the Queue class. But now I see that you only want to compute one value in your thread and stop it afterwards. In fact using a wx.PyEvent is much more elegant than my solution. :-) I'm glad that I could help. Laszlo -- http://mail.python.org/mailman/listinfo/python-list
Iterator for circulating a list
L = somelist idx = 0 while True: item = L[idx] # Do something with item idx = (idx + 1) % len(L) wouldn't it be cool if there was an itertool like this: def circulate(L, begin = 0, step = 1): idx = begin while True: yield L[idx] idx = (idx + step) % len(L) for x in circulate(range(10)): print 'at', x,'!' Or maybe someone knows an even better way of expressing the above code? -- mvh Björn -- http://mail.python.org/mailman/listinfo/python-list
os walk() and threads problems (os.walk are thread safe?)
Hello list,
I have a strange problem with os.walk and threads in python script. I
have one script that create some threads and consume Queue. For every
value in Queue this script run os.walk() and printing root dir. But if i
increase number of threads the result are inconsistent compared with one
thread.
For example, run this code plus sort with one thread and after run again
with ten threads and see diff(1).
--code--
#!/usr/local/bin/python
import os, time, glob
import Queue
import threading
EXIT=False
POOL=Queue.Queue(0)
NRO_THREADS=1
#NRO_THREADS=10
class Worker(threading.Thread):
def run(self):
global POOL, EXIT
while True:
try:
mydir=POOL.get(timeout=1)
if mydir == None:
continue
for root, dirs, files in os.walk(mydir):
print root
except Queue.Empty:
if EXIT:
break
else:
continue
except KeyboardInterrupt:
break
except Exception:
raise
for x in xrange(NRO_THREADS):
Worker().start()
try:
for i in glob.glob('/usr/ports/*'):
POOL.put(i)
while not POOL.empty():
time.sleep(1)
EXIT = True
while (threading.activeCount() 1):
time.sleep(1)
except KeyboardInterrupt:
EXIT=True
--code--
If someone can help with this i appreciate.
Regards
--
Marcus Alves Grando
marcus(at)sbh.eng.br | Personal
mnag(at)FreeBSD.org | FreeBSD.org
--
http://mail.python.org/mailman/listinfo/python-list
Re: pyopenglcontext binaries for 2.5 on win32
On Nov 13, 12:03 am, gz [EMAIL PROTECTED] wrote: no, I don't have them... I need them :) I'd like to thank Giovanni Bajo for providing binaries for the various package dependencies, and geting me going with pyopengl. Unfortunately I only menaged to run a basic example, where there's no animation. The glwindow only get's redrawn when it's resized, moved... well generally redrawed as a window. I would greatly appreciate some hints, about how to process the gui events in the gl portion, and how to run a continous animation in wx + pyopengl? I suspect the whole thing would be way easier with pyopenglcontext, but I can't seem to find a binary for python 2.5 I can't get it to install with mingw and don't have vc currently installed. If someone has successfully built it, plesase share. Although, I think, an example of a running opengl spinning cube, embedded in some wx menu + buttons, capable of handling, say, mouse clicks in the glwindow, would work best for me. I'm not even that keen on wx. I choose it, purely, on the basis that wx is generaly brought up here frequenter than qt. (Didn't qt have some licensing change in the last few months that could potentially change that?) I would highly recommend that you post this to the wxPython group. I think I saw a similar question about using wx and openGL there in the last couple of weeks. See http://www.wxpython.org/maillist.php I tried to compile it just now, but it requires the .NET SDK (but doesn't say which one). I'm downloading the 2.0 SDK and when I've got it, I'll give it another go. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: AOP and pep 246
AOP was a research that gone nowhere - at least not in its orginal AspectJ form ... I think it might be worth pointing out, though, that there is still significant interest in AOP in the Java community, in the form or interest in the Spring Framework. See, for instance: http://www.onjava.com/pub/a/onjava/2004/07/14/springaop.html This article was written in 2004. It has taken some time for awareness of Spring to penetrate the Java community, but it appears to be happening in a serious way. -- Thank-god-I-don't-have-to-learn-all-this-Java-superstructure-stuff- ly yours, Steve Ferg -- http://mail.python.org/mailman/listinfo/python-list
Re: Help needed!
On Nov 12, 5:16 pm, SMALLp [EMAIL PROTECTED] wrote: I forgot, I'm using wxPythonSMALLp [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I'm new in python and i got lost. Ima building an aplication that add's 2 panels and menu bar to the window. So i made base class that makes window, menuBarClass that inherits mainWindowClass. Problem is with PanelClass that would need to inherit MainWindowClass to add panels. So if someone has time to write simple example it would be realy helpfull. Please check out the wxPython Wiki: http://wiki.wxpython.org/ There are tutorials there that I think you'll find most helpful. There's also a user's group mailing list that you can join. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: pyopenglcontext binaries for 2.5 on win32
On Nov 13, 12:03 am, gz [EMAIL PROTECTED] wrote: no, I don't have them... I need them :) I'd like to thank Giovanni Bajo for providing binaries for the various package dependencies, and geting me going with pyopengl. Unfortunately I only menaged to run a basic example, where there's no animation. The glwindow only get's redrawn when it's resized, moved... well generally redrawed as a window. I would greatly appreciate some hints, about how to process the gui events in the gl portion, and how to run a continous animation in wx + pyopengl? I suspect the whole thing would be way easier with pyopenglcontext, but I can't seem to find a binary for python 2.5 I can't get it to install with mingw and don't have vc currently installed. If someone has successfully built it, plesase share. Although, I think, an example of a running opengl spinning cube, embedded in some wx menu + buttons, capable of handling, say, mouse clicks in the glwindow, would work best for me. I'm not even that keen on wx. I choose it, purely, on the basis that wx is generaly brought up here frequenter than qt. (Didn't qt have some licensing change in the last few months that could potentially change that?) Technically speaking, you could download the zip file, upzip it and then install it via the command line. Admittedly, that can be a little difficult when you've never done it before. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: Iterator for circulating a list
On Tue, 2007-11-13 at 15:12 +0100, BJörn Lindqvist wrote: L = somelist idx = 0 while True: item = L[idx] # Do something with item idx = (idx + 1) % len(L) wouldn't it be cool if there was an itertool like this: def circulate(L, begin = 0, step = 1): idx = begin while True: yield L[idx] idx = (idx + step) % len(L) for x in circulate(range(10)): print 'at', x,'!' For begin=0 and step=1, itertools.cycle does exactly that. For arbitrary offsets or different steps, you'd have to combine cycle with islice. -- Carsten Haese http://informixdb.sourceforge.net -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 13, 2007 3:56 AM, bramble [EMAIL PROTECTED] wrote: On Nov 10, 4:48 am, Paul Rudin [EMAIL PROTECTED] wrote: jwelby [EMAIL PROTECTED] writes: The main reason I have used Eclipse for larger, team based, projects is for the source control plug-ins. Eclipse has plug-in support for cvs and svn. PyScripter may have this too - perhaps I've missed it. (I'm away from my Windows box at the moment, otherwise I would check). Of course, there are other ways to implement source control without it needing to be integrated in the IDE, so even this need not put off anyone who wants to use PyScripter with source control. [snip] I'm not sure if you count emacs as lightweight but it's certainly less resource hungry than eclipse/pydev, and does have integrated cvs/svn functionality. I've never understood the desire for using your version control software via your IDE. Why not just Alt-Tab over to your terminal window and run the svn/bzr/hg/git/whatever commands yourself right from there? Because I'm already in my IDE and I'm already managing files from there. The version integration in Eclipse also has some other handy features, like showing history in the live document (I can do an svn blame for the line I'm looking at directly in the editor, without needing to context switch to a different environment). In the particular case of Eclipse, Eclipse has it's own workspace and project metaphors, it doesn't work with just any old file it happens to find. This can be very frustrating at times, but since that's how Eclipse works it's nice to have source control integrated into that. -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Iterator for circulating a list
BJörn Lindqvist [EMAIL PROTECTED] writes: L = somelist idx = 0 while True: item = L[idx] # Do something with item idx = (idx + 1) % len(L) wouldn't it be cool if there was an itertool like this: def circulate(L, begin = 0, step = 1): idx = begin while True: yield L[idx] idx = (idx + step) % len(L) for x in circulate(range(10)): print 'at', x,'!' How about itertools.cycle? -- http://mail.python.org/mailman/listinfo/python-list
Re: os walk() and threads problems (os.walk are thread safe?)
Marcus Alves Grando wrote: Hello list, I have a strange problem with os.walk and threads in python script. I have one script that create some threads and consume Queue. For every value in Queue this script run os.walk() and printing root dir. But if i increase number of threads the result are inconsistent compared with one thread. For example, run this code plus sort with one thread and after run again with ten threads and see diff(1). I don't see any difference. I ran it with 1 and 10 workers + sorted the output. No diff whatsoever. And I don't know what you mean by diff(1) - was that supposed to be some output? Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Iterator for circulating a list
On Nov 13, 2007 3:43 PM, Carsten Haese [EMAIL PROTECTED] wrote: On Tue, 2007-11-13 at 15:12 +0100, BJörn Lindqvist wrote: L = somelist idx = 0 while True: item = L[idx] # Do something with item idx = (idx + 1) % len(L) For begin=0 and step=1, itertools.cycle does exactly that. For arbitrary offsets or different steps, you'd have to combine cycle with islice. *slap forehead* Figures.. I actually read the itertools.cycle documentation but I didn't realize that it was (almost) equivalent to my code. Thanks for that. -- mvh Björn -- http://mail.python.org/mailman/listinfo/python-list
why no automatic conversion in string concatenation?
As a Java PHP developer, I find it kind of annoying that I have to explicitly convert non-string variables to strings when concatenating them, especially when python is quite capable of doing the conversion automatically. i.e.: myBool = True print myBool True print myBool is + myBool Traceback (most recent call last): File stdin, line 1, in module TypeError: cannot concatenate 'str' and 'bool' objects print myBool is + str(myBool) myBool is True Can anyone explain why this is so? Are there any plans to change this in python 3000? Thanks, - Michael -- http://mail.python.org/mailman/listinfo/python-list
Re: A JEW hacker in California admits distributing malware that let him steal usernames and passwords for Paypal accounts.
Hendrik Maryns [EMAIL PROTECTED] writes: ___ /| /| | | ||__|| | Please do | / O O\__ NOT | / \ feed the| / \ \ trolls | / _\ \ __| /|\\ \ || / | | | |\/ || / \|_|_|/ \__|| / / \|| || / | | /|| --| | | |// | --| * _| |_|_|_| | \-/ *-- _--\ _ \ // | / _ \\ _ // |/ * / \_ /- | - | | * ___ c_c_c_C/ \C_c_c_c Just a small pointer here : by you posting that you re-awoke the thread for many of us. So please, do not tell people not to feed the trolls since (a) you are doing just that and (b) you re-awake the thread for some of us who had already filtered it. Thank you. The best advice is : if you think it's a troll ignore it. It will go away. It is also better to let other people make up their own minds. Your ascii art, while pretty, convinces no one ... -- http://mail.python.org/mailman/listinfo/python-list
best open source sample
Hi, I'm new to Python and am looking for a really good/complete open source project to learn from. I'd like it to take input from the browser and query mysql. Suggestions? -- http://mail.python.org/mailman/listinfo/python-list
Convert some Python code to C++
I am working on an implementation of the Longest Common Subsequence problem (as I understand it, this problem can be used in spell checking type activities) and have used this site to understand the problem and its solution: http://en.wikibooks.org/wiki/Algorithm_implementation/Strings/Longest_common_subsequence For those that understand algorithms and can talk Python, I want to convert the Python code in the section Reading out all LCSs into C++ code but I don't understand some of the syntax. Can anyone give me a hand? Here is the code from that section, but is probably of little use without understanding the entire problem setup given at the site above: def backTrackAll(C, X, Y, i, j): if i == 0 or j == 0: return set([]) elif X[i-1] == Y[j-1]: return set([Z + X[i-1] for Z in backTrackAll(C, X, Y, i-1, j-1)]) else: R = set() if C[i][j-1] = C[i-1][j]: R.update(backTrackAll(C, X, Y, i, j-1)) if C[i-1][j] = C[i][j-1]: R.update(backTrackAll(C, X, Y, i-1, j)) return R Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: persisting data within a module
I'm not sure how to better state my question than to post my code. The question boils down to which namespace to variable in the module (in this case A) end up in depending on whether or not the module is simply imported by another module which acts as the driver (run.py is __main__), or when the module drives itself (test.py __main__). For example: my guess is that in the first case A ends up in the namespace of test and could be referenced by test.A, in the second case A ends up in the global namespace (and therefore must be referred to as simply A by other modules). Can anyone please shed some light on this for me? Thanks I'm having trouble understanding how namespaces work in modules. I want to execute a module within the interpreter and then have values that are calculated persist so that other modules that get executed can retrieve them. Modules retain state their state across all imports in the same interpreter instance. Module state is not shared among different instances of the interpreter. For example, consider the two simple modules below. The first method fails and I'm not sure exactly why. (Note: assume one instance of an interpreter. In my case a 3rd party software tool that starts an interpreter when it launches). Two alternate ways of running it: 1. (FAILS: RESULTS A = 0) Use the module test itself as the driver using the conditional statement if (__name__==__main__): test.py run2.py Ok, what do you mean by this? Do you mean run test.py and then run run2.py? In so, then you will have *two* instances -- one for each file being executed. You can only have one main module per interpreter instance. I suspect this is the source of your confusion. or, 2. (SUCCES: RESULTS A = 10) Use run.py as the driver. run.py _test.py__ import sys,os A = 0 def getA(): global A return A def run(): global A A = 10 if (__name__==__main__): run() Here, A is only initialized when the module is loaded iff it is the main module. If it's not the main module, then it will have A set to 0 until some other code calls run(). _run.py__ import test test.run() print A = + str(test.getA()) This code calls test.run(), which is necessary for A to be 10. _run2.py__ import test print A = + str(test.getA()) -- This code gets the value of test.A without calling test.run(). Since test.run() was not called, A is the value it was initialized when the test module was loaded -- namely, 0. Hope this helps, --Nathan Davis -- Peter Bismuti Boeing Information Technology Renton, WA (425) 234-0873 W (425) 442-7775 C -- http://mail.python.org/mailman/listinfo/python-list
bsddb : python, index, cursor and get
Hello, I'm having problems to use the get method on a cursor with an index (secondary database). I've read Oracle's docs but there are mainly in C, JAVA and C++. So no python docs! actually, that's what I'm trying to do : ret = cursor.get(key='blabla', data='2007-10-30', flags=0, dlen=-1, doff=-1) this does not work. the code above this line is : ### snip def getDate(priKey, priData): date = string.split(priData, ' ')[1] return date TheDB = db.DB() TheDB.open(filename_pri, None, db.DB_BTREE, db.DB_RDONLY) TheIDX = db.DB() TheIDX.open(filename_idx2, None, db.DB_BTREE, db.DB_RDONLY) TheDB.associate(TheIDX, getDate) # get database cursor and print out database content cursor = TheIDX.cursor() ### snip Does anybody have some sample code which performs a lookup in a database with an index using a cursor in Python? Thanks a lot -- http://mail.python.org/mailman/listinfo/python-list
how can I interpret a file within the interactive interpreter
I want to interpret a file (or whatever you call it) and then keep the interactive interpreter alive so I can then continue to issue commands. How can this be done? I saw online a -m flag but it does not seem to work. Thanks -- Peter Bismuti Boeing -- http://mail.python.org/mailman/listinfo/python-list
FALSE FLAG TACTIC TO SCARE CHRISTIANS AND THOSE WHO HAVE LITTLE KNOWLEDGE Re: Concept of God in Islam
Here, a jew subterfuge false-flag posing as an Islamic spams the newsgroup with CUT AND PASTE job from some Islamic webpage TO SCARE THE CHRISTIAN FUNDAMENTALISTS and EUROPEANS (like those French) in an attempt to destroy 911 truth discussion by making them think that 911 truth victory = something like islamic victory and confuse the readership. 911 truthers never get into this kind of thing. 911 truthers never get into this kind of thing. 911 truthers never get into this kind of thing. We will reply to EXPOSE this tactic coz we know that there are vulnerable XENOPHOBIC people or just those who dont understand the nature of these tactics. Such posts have often piggy-backed the posts by 911 truthers. It is important to explain the nature of these posts appearing after 911 truth posts which are truly science related and educational and meant to protect our constitution and democracy from the criminals. We (911 truthers) must protect our unity. On Nov 13, 7:45 am, abdo911 [EMAIL PROTECTED] wrote: WAMY Series: On Islam No.9.Introduction God's Attributes The Oneness of God The Believer's Attitude Introduction It is a known fact that every language has one or more terms that are used in reference to God and sometimes to lesser deities. This is not the case with Allah. Allah is the personal name of the One true God. Nothing else can be called Allah. The term has no plural or gender. This shows its uniqueness when compared with the word god, which can be made plural, as in gods, or made feminine, as in goddess. It is interesting to notice that Allah is the personal name of God in Aramaic, the language of Jesus and a sister language of Arabic.The One true God is a reflection of the unique concept that Islam associates with God. To a Muslim, Allah is the Almighty Creator and Sustainer of the universe, Who is similar to nothing, and nothing is comparable to Him. The Prophet Muhammad was asked by his contemporaries about Allah; the answer came directly from God Himself in the form of a short chapter of the Qur'an, which is considered to be the essence of the unity or the motto of monotheism. This is chapter 112, which reads: In the name of Allah, the Merciful, the Compassionate. Say (O Muhammad), He is God, the One God, the Everlasting Refuge, who has not begotten, nor has been begotten, and equal to Him is not anyone.Some non-Muslims allege that God in Islam is a stern and cruel God who demands to be obeyed fully and is not loving and kind. Nothing could be farther from the truth than this allegation. It is enough to know that, with the exception of one, each of the 114 chapters of the Qur'an begins with the verse In the name of God, the Merciful, the Compassionate. In one of the sayings of Prophet Muhammad (PBUH), we are told that God is more loving and kind than a mother to her dear child.On the other hand, God is also Just. Hence, evildoers and sinners must have their share of punishment, and the virtuous must have God's bounties and favors. Actually, God's attribute of Mercy has full manifestation in His attribute of Justice. People suffering throughout their lives for His sake should not receive similar treatment from their Lord as people who oppress and exploit others their whole lives. Expecting similar treatment for them would amount to negating the very belief in the accountability of man in the Hereafter and thereby negate all the incentives for a moral and virtuous life in this world. The following Qur'anic verses are very clear and straightforward in this respect. Verily, for the Righteous are gardens of Delight, in the Presence of their Lord. Shall We then treat the people of Faith like the people of Sin? What is the matter with you? How judge you? Islam rejects characterizing God in any human form or depicting Him as favoring certain individuals or nations on the basis of wealth, power or race. He created the human-beings as equals. They may distinguish themselves and get His favor through virtue and piety only. The concepts that God rested on the seventh day of creation, that God wrestled with one of His soldiers, that God is an envious plotter against mankind, and that God is incarnate in any human being are considered blasphemy from the Islamic point of view. The unique usage of Allah as a personal name of God is a reflection of Islam's emphasis on the purity of the belief in God that is the essence of the message of all God's messengers. Because of this, Islam considers associating any deity or personality with God as a deadly sin that God will never forgive, despite the fact that He may forgive all other sins. The Creator must be of a different nature from the things created because if He is of the same nature as they are, He will be temporal and will therefore need a maker. It follows that nothing is like Him. If the maker is not temporal, then he must be eternal. But if he is eternal, he cannot be caused, and if nothing
Re: how can I interpret a file within the interactive interpreter
Peter J. Bismuti wrote: I want to interpret a file (or whatever you call it) and then keep the interactive interpreter alive so I can then continue to issue commands. How can this be done? I saw online a -m flag but it does not seem to work. Use the -i-flag. Diez -- http://mail.python.org/mailman/listinfo/python-list
referencing a subhash for generalized ngram counting
Greetings: I wonder how does one uses single-name variables to refer
to nested sunhashes (subdictionaries). Here's an example:
In [41]: orig = { 'abra':{'foo':7, 'bar':9}, 'ca':{}, 'dabra':{'baz':
4} }
In [42]: orig
Out[42]: {'abra': {'bar': 9, 'foo': 7}, 'ca': {}, 'dabra': {'baz': 4}}
In [43]: h = orig['ca']
In [44]: h = { 'adanac':69 }
In [45]: h
Out[45]: {'adanac': 69}
In [46]: orig
Out[46]: {'abra': {'bar': 9, 'foo': 7}, 'ca': {}, 'dabra': {'baz': 4}}
I want to change orig['ca'], which is determined somewhere else in a
program's logic, where subhashes are referred to as h -- e.g., for x
in orig: ... . But assigning to h doesn't change orig.
The real-life motivation for this is n-gram counting. Say you want to
maintain a hash for bigrams. For each two subsequent words a, b in a
text, you do
bigram_count[a][b] += 1
-- notice you do want to have nested subhashes as it decreases memory
usage dramatically.
In order to generalize this to N-grammity, you want to do something
like,
h = bigram_count
# iterating over i, not word, to notice the last i
for i in range(len(ngram):
word = ngram[i]
if word not in h:
if i N:
h[word] = {}
else:
h[word] = 0
h = h[word]
h += 1
-- doesn't work and is just a sketch; also, if at any level we get an
empty subhash, we can short-circuit vivify all remaining levels and
add 1 in the lowest, count, level.
Yet since names are not exactly references, something else is needed
for generalized ngram multi-level counting hash -- what?
Cheers,
Alexy
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Re: persisting data within a module
How is that state different depending on whether a module has been simply imported (#2. some other block of code has __name__ == __main__) and the script itself being run (#1. and having __name__==__main__)? Ultimately, what I want is for a module to remember (persist) the value of A, regardless of how the module has been loaded into the interpreter. Thanks Modules retain state their state across all imports in the same interpreter instance. Module state is not shared among different instances of the interpreter. For example, consider the two simple modules below. The first method fails and I'm not sure exactly why. (Note: assume one instance of an interpreter. In my case a 3rd party software tool that starts an interpreter when it launches). Two alternate ways of running it: 1. (FAILS: RESULTS A = 0) Use the module test itself as the driver using the conditional statement if (__name__==__main__): test.py run2.py Ok, what do you mean by this? Do you mean run test.py and then run run2.py? In so, then you will have *two* instances -- one for each file being executed. You can only have one main module per interpreter instance. I suspect this is the source of your confusion. or, 2. (SUCCES: RESULTS A = 10) Use run.py as the driver. run.py _test.py__ import sys,os A = 0 def getA(): global A return A def run(): global A A = 10 if (__name__==__main__): run() Here, A is only initialized when the module is loaded iff it is the main module. If it's not the main module, then it will have A set to 0 until some other code calls run(). _run.py__ import test test.run() print A = + str(test.getA()) This code calls test.run(), which is necessary for A to be 10. _run2.py__ import test print A = + str(test.getA()) -- This code gets the value of test.A without calling test.run(). Since test.run() was not called, A is the value it was initialized when the test module was loaded -- namely, 0. Hope this helps, --Nathan Davis -- Peter Bismuti Boeing Information Technology Renton, WA (425) 234-0873 W (425) 442-7775 C -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I interpret a file within the interactive interpreter
Peter J. Bismuti wrote: I want to interpret a file (or whatever you call it) and then keep the interactive interpreter alive so I can then continue to issue commands. That's what the -i option is for. How can this be done? I saw online a -m flag but it does not seem to work. -m is used to load a module via python's import mechanism. $ echo 'print Hello from, __name__' tmp.py $ python -m tmp Hello from __main__ $ python -i tmp.py Hello from __main__ You can combine both options: $ python -i -m tmp Hello from __main__ Peter -- http://mail.python.org/mailman/listinfo/python-list
urllib.unquote + unicode
Hello all, i am using urllib.unquote_plus to unquote a string. Sometimes i get a strange string like for example spolu%u017E%E1ci.cz to unquote. Here the problem is that some application decided to quote a non-ascii character as %u directly, instead of using an encoding and quoting byte per byte. Python (2.4.1) simply returns 'spolu%u017E\xe1ci.cz, which is likely not what the application meant. My question is, is this %u quoting a standard (i.e., urllib is in the wrong), is it not (i.e., the application is in the wrong and urllib silently ignores the '%u0' - why?), and most importantly, is there a simple workaround to get it working as expected? Cheers! -- http://mail.python.org/mailman/listinfo/python-list
Re: best open source sample
On Nov 13, 9:20 am, Johnny [EMAIL PROTECTED] wrote: Hi, I'm new to Python and am looking for a really good/complete open source project to learn from. I'd like it to take input from the browser and query mysql. Suggestions? Zope / Plone, Django, or Turbogears are all web frameworks that are Python based. You could check those out. Dabo is created on top of wxPython and is made for accessing databases. You might also find these links helpful: http://wiki.python.org/moin/SummerOfCode http://freshmeat.net/articles/view/334/ www.python.org Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: referencing a subhash for generalized ngram counting
On Tue, 13 Nov 2007 08:02:08 -0800, braver wrote:
Greetings: I wonder how does one uses single-name variables to refer
to nested sunhashes (subdictionaries). Here's an example:
That's possible and you do it in your example.
In [41]: orig = { 'abra':{'foo':7, 'bar':9}, 'ca':{}, 'dabra':{'baz':
4} }
In [42]: orig
Out[42]: {'abra': {'bar': 9, 'foo': 7}, 'ca': {}, 'dabra': {'baz': 4}}
In [43]: h = orig['ca']
Here you are getting the reference to the empty dictionary and bind it to
the name `h`.
In [44]: h = { 'adanac':69 }
In [45]: h
Out[45]: {'adanac': 69}
In [46]: orig
Out[46]: {'abra': {'bar': 9, 'foo': 7}, 'ca': {}, 'dabra': {'baz': 4}}
I want to change orig['ca'], which is determined somewhere else in a
program's logic, where subhashes are referred to as h -- e.g., for x
in orig: ... . But assigning to h doesn't change orig.
Correct. Changing the dictionary bound to `h` changes it::
h = orig['ca']
h['adanac'] = 69
Yet since names are not exactly references, something else is needed
for generalized ngram multi-level counting hash -- what?
Names *are* implemented as references to objects, but binding the name to
a different object has no effect on the object bound to that name before.
Ciao,
Marc 'BlackJack' Rintsch
--
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Re: os walk() and threads problems (os.walk are thread safe?)
Diez B. Roggisch wrote: Marcus Alves Grando wrote: Hello list, I have a strange problem with os.walk and threads in python script. I have one script that create some threads and consume Queue. For every value in Queue this script run os.walk() and printing root dir. But if i increase number of threads the result are inconsistent compared with one thread. For example, run this code plus sort with one thread and after run again with ten threads and see diff(1). I don't see any difference. I ran it with 1 and 10 workers + sorted the output. No diff whatsoever. Do you test in one dir with many subdirs? like /usr or /usr/ports (in freebsd) for example? And I don't know what you mean by diff(1) - was that supposed to be some output? No. One thread produce one result and ten threads produce another result with less lines. Se example below: @@ -13774,8 +13782,6 @@ /usr/compat/linux/proc/44 /usr/compat/linux/proc/45 /usr/compat/linux/proc/45318 -/usr/compat/linux/proc/45484 -/usr/compat/linux/proc/45532 /usr/compat/linux/proc/45857 /usr/compat/linux/proc/45903 /usr/compat/linux/proc/46 Regards -- Marcus Alves Grando marcus(at)sbh.eng.br | Personal mnag(at)FreeBSD.org | FreeBSD.org -- http://mail.python.org/mailman/listinfo/python-list
Re: best open source sample
On Nov 13, 9:14 am, [EMAIL PROTECTED] wrote: On Nov 13, 9:20 am, Johnny [EMAIL PROTECTED] wrote: Hi, I'm new to Python and am looking for a really good/complete open source project to learn from. I'd like it to take input from the browser and query mysql. Suggestions? Zope / Plone, Django, or Turbogears are all web frameworks that are Python based. You could check those out. Dabo is created on top of wxPython and is made for accessing databases. You might also find these links helpful: http://wiki.python.org/moin/SummerOfCodehttp://freshmeat.net/articles/view/334/www.python.org Mike Thanks Mike - that should get me going. -- http://mail.python.org/mailman/listinfo/python-list
Re: Arrays
OK, thanks to all. The key statement is from array import array which is
not exactly intuitive!
Gord
John Machin [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Bernard wrote:
On 12 nov, 20:19, Gordon C [EMAIL PROTECTED] wrote:
Absolute newbie here. In spite of the Python Software Foundation
tutorial's
(http://www.python.org/doc/current/tut/tut.html) use of the array
declaration
array(type[,initializer]), the Python interpreter does NOT accept the
word
array! It , presumably, needs to have an import something included.
Could
some show me how to declare arrays with some basic examples?
Gord.
hey Gordon,
here's a good reading for you: http://effbot.org/zone/python-list.htm
Hey Bernard, read Gordon's message carefully; he's asking about
arrays, not lists.
Hey Gordon, You seem a little lost; here's the tutorial reference:
http://docs.python.org/tut/node13.html#SECTION001370
which produces:
The array module provides an array() object that is like a list that
stores only homogenous data and stores it more compactly. The
following example shows an array of numbers stored as two byte
unsigned binary numbers (typecode H) rather than the usual 16 bytes
per entry for regular lists of python int objects:
from array import array
a = array('H', [4000, 10, 700, 2])
sum(a)
26932
a[1:3]
array('H', [10, 700])
The 2nd word (array) is a link (http://docs.python.org/lib/module-
array.html) to the docs for the array module.
Cheers,
John
--
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cx_Oracle: Non-ASCII characters handling with different versions
Hi!
I have a problem with the cx_Oracle module (Oracle database access):
On a computer with cx_Oracle version 4.1 (Python 2.4.3, Oracle 10g)
I can get query results consisting of strings including non-ASCII
characters, e.g. the code example below outputs é 0xe9 (which is
the correct ISO-8859-1 hex code for é). On a newer installation
with cx_Oracle 4.3.3 (Python 2.5.1, connecting to the same Oracle
10g server) these characters are interpreted as ASCII (output e
0x65). The database encoding is the default (and it's the same DB
in both cases anyways); I have no NLS environment environment
variables set on either system (I'm running cygwin). The HISTORY
file of my more recent cx_Oracle names a few changes related to
character sets, but noone strikes me to be relevant for this case.
There is non-ASCII data strings in a database, and I need to find a
way to get it out correctly.
Is anybody able to help me?
Thanks!
Ben
#!/usr/bin/env python
import cx_Oracle
database = cx_Oracle.connect('login/[EMAIL PROTECTED]')
curs = database.cursor()
sql = SELECT CHR(233) FROM DUAL
curs.execute(sql)
result = curs.fetchone()[0]
print result, 0x%x % ord(result)
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current script path via execfile?
I have an app with an embedded Python interpreter. In that interpreter, I want to use execfile (or something similar) to execute a script from disk. The script needs to somehow acquire the full path to itself, but I can't work out how to do this. Since it's run with execfile in the embedded interpreter, there's no sys.argv to look at. Is there another way to get the current script's full pathname? Thanks in advance. - Adam -- http://mail.python.org/mailman/listinfo/python-list
Re: Arrays
On Nov 13, 2007 10:26 AM, Gordon C [EMAIL PROTECTED] wrote: OK, thanks to all. The key statement is from array import array which is not exactly intuitive! Gord It becomes intuitive when you learn Python, which is what you're reading the tutorial for, and it's why the tutorial shows you exactly what to type. If you're progressing through the tutorial step by step instead of jumping ahead, you should already have been introduced to the import statement. -- http://mail.python.org/mailman/listinfo/python-list
Re: os walk() and threads problems (os.walk are thread safe?)
Marcus Alves Grando wrote: Diez B. Roggisch wrote: Marcus Alves Grando wrote: Hello list, I have a strange problem with os.walk and threads in python script. I have one script that create some threads and consume Queue. For every value in Queue this script run os.walk() and printing root dir. But if i increase number of threads the result are inconsistent compared with one thread. For example, run this code plus sort with one thread and after run again with ten threads and see diff(1). I don't see any difference. I ran it with 1 and 10 workers + sorted the output. No diff whatsoever. Do you test in one dir with many subdirs? like /usr or /usr/ports (in freebsd) for example? Yes, over 1000 subdirs/files. And I don't know what you mean by diff(1) - was that supposed to be some output? No. One thread produce one result and ten threads produce another result with less lines. Se example below: @@ -13774,8 +13782,6 @@ /usr/compat/linux/proc/44 /usr/compat/linux/proc/45 /usr/compat/linux/proc/45318 -/usr/compat/linux/proc/45484 -/usr/compat/linux/proc/45532 /usr/compat/linux/proc/45857 /usr/compat/linux/proc/45903 /usr/compat/linux/proc/46 I'm not sure what that directory is, but to me that looks like the linux /proc dir, containing process ids. Which incidentially changes between the two runs, as more threads will have process id aliases. Try your script on another directory. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Populating a dictionary, fast [SOLVED]
A Monday 12 November 2007, Michael Bacarella escrigué: As for the solution, after trying a half-dozen different integer hashing functions and hash table sizes (the brute force approach), on a total whim I switched to a model with two dictionary tiers and got whole orders of magnitude better performance. The tiering is, for a given key of type long: id2name[key 40][key 0x100] = name Much, much better. A few minutes versus hours this way. I suspect it could be brought down to seconds with a third level of tiers but this is no longer posing the biggest bottleneck... ;) I don't know exactly why do you need a dictionary for keeping the data, but in case you want ultra-fast access to values, there is no replacement for keeping a sorted list of keys and a list with the original indices to values, and the proper list of values. Then, to access a value, you only have to do a binary search on the sorted list, another lookup in the original indices list and then go straight to the value in the value list. This should be the faster approach I can think of. Another possibility is using an indexed column in a table in a DB. Lookups there should be much faster than using a dictionary as well. HTH, -- 0,0 Francesc Altet http://www.carabos.com/ V V Cárabos Coop. V. Enjoy Data - -- http://mail.python.org/mailman/listinfo/python-list
Re: Populating a dictionary, fast [SOLVED]
On Nov 12, 11:32 am, Michael Bacarella [EMAIL PROTECTED] wrote: See end for solution. (3) Are you sure you need all eight-million-plus items in the cache all at once? Yes. I remain skeptical, but what do I know, I don't even know what you're doing with the data once you have it :-) It's OK, I'd be skeptical too. ;) $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ stepping: 1 cpu MHz : 1000.000 cache size : 512 KB ... processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ stepping: 1 cpu MHz : 1000.000 cache size : 512 KB # cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 5 model name : AMD Opteron(tm) Processor 246 stepping: 10 cpu MHz : 2009.305 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow bogomips: 3981.31 TLB size: 1088 4K pages clflush size: 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 5 model name : AMD Opteron(tm) Processor 246 stepping: 10 cpu MHz : 2009.305 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow bogomips: 4014.08 TLB size: 1088 4K pages clflush size: 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp As for the solution, after trying a half-dozen different integer hashing functions and hash table sizes (the brute force approach), on a total whim I switched to a model with two dictionary tiers and got whole orders of magnitude better performance. The tiering is, for a given key of type long: id2name[key 40][key 0x100] = name Much, much better. A few minutes versus hours this way. I suspect it could be brought down to seconds with a third level of tiers but this is no longer posing the biggest bottleneck... ;) Thanks!- Hide quoted text - - Show quoted text - Shouldn't this be: id2name[key 40][key 0xff] = name ? -- Paul -- http://mail.python.org/mailman/listinfo/python-list
module data member?
How do you define a module data member (I want to understand out how this works before making converting to a Class)? Right now I'm defining variables in a module that get put into the global namespace. Instead I want to put them in a module global namespace that will be the same regardless of whether not this module is imported or run as __main__. Thanks PS Sorry for the near redundant posts. I'm simply trying to refine my question as I get a better understanding of what I'm confused about. Thanks -- Peter Bismuti Boeing -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert some Python code to C++
On Nov 13, 9:28 am, [EMAIL PROTECTED] wrote: I am working on an implementation of the Longest Common Subsequence problem (as I understand it, this problem can be used in spell checking type activities) and have used this site to understand the problem and its solution: http://en.wikibooks.org/wiki/Algorithm_implementation/Strings/Longest... For those that understand algorithms and can talk Python, I want to convert the Python code in the section Reading out all LCSs into C++ code but I don't understand some of the syntax. Can anyone give me a hand? Here is the code from that section, but is probably of little use without understanding the entire problem setup given at the site above: def backTrackAll(C, X, Y, i, j): if i == 0 or j == 0: return set([]) elif X[i-1] == Y[j-1]: return set([Z + X[i-1] for Z in backTrackAll(C, X, Y, i-1, j-1)]) else: R = set() if C[i][j-1] = C[i-1][j]: R.update(backTrackAll(C, X, Y, i, j-1)) if C[i-1][j] = C[i][j-1]: R.update(backTrackAll(C, X, Y, i-1, j)) return R Thanks! You might try Shed Skin: http://sourceforge.net/projects/shedskin/ It's been a while since I did C++. I would recommend going through a basic C++ tutorial. I'm pretty sure the equivalence operators are almost the same. You'll likely need to declare the types for the arguments passed into the function as well. I think lists are called arrays in C++. I don't know what the set equivalent is though. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I interpret a file within the interactive interpreter
Still can't get the -m flat to work. Perhaps this feature is not in the version I am using? Thanks. -bash-3.00$ python -m test Unknown option: -m usage: python [option] ... [-c cmd | file | -] [arg] ... Try `python -h' for more information. -bash-3.00$ python Python 2.3.4 (#1, Jan 9 2007, 16:40:09) [GCC 3.4.6 20060404 (Red Hat 3.4.6-3)] on linux2 Type help, copyright, credits or license for more information. Peter J. Bismuti wrote: I want to interpret a file (or whatever you call it) and then keep the interactive interpreter alive so I can then continue to issue commands. That's what the -i option is for. How can this be done? I saw online a -m flag but it does not seem to work. -m is used to load a module via python's import mechanism. $ echo 'print Hello from, __name__' tmp.py $ python -m tmp Hello from __main__ $ python -i tmp.py Hello from __main__ You can combine both options: $ python -i -m tmp Hello from __main__ Peter -- Peter Bismuti Boeing Information Technology Renton, WA (425) 234-0873 W (425) 442-7775 C -- http://mail.python.org/mailman/listinfo/python-list
Re: module data member?
Peter J. Bismuti wrote: How do you define a module data member (I want to understand out how this works before making converting to a Class)? Right now I'm defining variables in a module that get put into the global namespace. Instead I want to put them in a module global namespace that will be the same regardless of whether not this module is imported or run as __main__. There is no real global namespace, unless you count __builtins__ - which you shouldn't :) All your defined top-level (global) module vars are local to that module. BUT there is of course one tiny probleme here, that arises when using a module as main script: then the module will be known under two distinct names, module-name __main__. The former of course only if someone imports the module itself. The common remedy for this is this: ... # lots of code of module myself def main(): # do mainy stuff here if __name__ == __main__: import myself myself.main() This of course won't prevent __main__ to be existant, nor running possible initialization code twice. But if the module is supposed to do some work, it will operate on the one data all the other importing modules see. You can take this one step further, using an explicit init()-function that creates global state (remember, it's only module-global). Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: referencing a subhash for generalized ngram counting
Here's a working version of the ngram counter with nested dict, wonder
how it can be improved!
lines = [abra ca dabra,
abra ca shvabra,
abra movich roman,
abra ca dabra,
a bra cadadra]
ngrams = [x.split() for x in lines]
N = 3
N1 = N-1
orig = {}
for ngram in ngrams:
h = orig
# iterating over i, not word, to notice the last i
for i in range(N):
word = ngram[i]
if word not in h:
if i N1: # (*)
h[word] = {}
else:
h[word] = 0
if i N1:
h = h[word]
print i, h
h[word] += 1
print orig
-- e.g., perhaps we could do short-circuit vivification to the end in
(*)?
Cheers,
Alexy
--
http://mail.python.org/mailman/listinfo/python-list
RE: Populating a dictionary, fast [SOLVED]
Shouldn't this be: id2name[key 40][key 0xff] = name Yes, exactly, I had done hex(pow(2,40)) when I meant hex(pow(2,40)-1) I sent my correction a few minutes afterwards but Mailman queued it for moderator approval (condition with replying to myself?) -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I interpret a file within the interactive interpreter
Peter J. Bismuti wrote: Still can't get the -m flat to work. Perhaps this feature is not in the version I am using? Thanks. -m isn't the option you want. -i it is. And yes, -m appeared in later python versions - I'm not exactly sure which one grew it, might be 2.3 or even 2.4. But -i is older. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Override method name and original method access
One.add(self, otherstuff) Ah! Thanks - that makes more sense. Much appreciated. /d -- http://mail.python.org/mailman/listinfo/python-list
Re: module data member?
This did the trick for the most part, but it still leaves a copy of the variable A in the non-module global namespace (see output below). I want A declared global to the module (so as not to be local within the functions of the module) but not visible outside of the module namespace (like B, see below). How can this be done? Thanks again python -i test.py : print test.A 10 : print A 0 : print B Traceback (most recent call last): File stdin, line 1, in ? NameError: name 'B' is not defined test.py___ A = 0 def getA(): global A return A def run(): global A A = 10 if (__name__==__main__): import test test.run() __ def main(): # do mainy stuff here if __name__ == __main__: import myself myself.main() This of course won't prevent __main__ to be existant, nor running possible initialization code twice. But if the module is supposed to do some work, it will operate on the one data all the other importing modules see. You can take this one step further, using an explicit init()-function that creates global state (remember, it's only module-global). Diez -- Peter Bismuti Boeing Information Technology Renton, WA (425) 234-0873 W (425) 442-7775 C -- http://mail.python.org/mailman/listinfo/python-list
Re: why there is no pythonscript insine web browsers?
At the last PyCon, Brett Cannon told me that he had already implemented the security architecture (or security template) for Python within Firefox. However, he did not go forward with the project because he would not be able to get a PhD from doing it. :-) Dennis Lee Bieber wrote: On Tue, 13 Nov 2007 09:51:49 -, bramble [EMAIL PROTECTED] declaimed the following in comp.lang.python: Why can't it be safely sandboxed? That is, why not just have a Python interpreter and some safe subset of the Python standard library run with the browser? I mean, aside It's not just the library (at a start you'd need to strip out modules os, popen, and subprocess), but you'd also need to block out exec, eval() (and by extension, input() ) from the interpreter core. Might need to do nasty things to the low-level import mechanism so that villains can't rig a web site to contain an import module with ability to access the local file system. -- Shane Geiger IT Director National Council on Economic Education [EMAIL PROTECTED] | 402-438-8958 | http://www.ncee.net Leading the Campaign for Economic and Financial Literacy begin:vcard fn:Shane Geiger n:Geiger;Shane org:National Council on Economic Education (NCEE) adr:Suite 215;;201 N. 8th Street;Lincoln;NE;68508;United States email;internet:[EMAIL PROTECTED] title:IT Director tel;work:402-438-8958 url:http://www.ncee.net version:2.1 end:vcard -- http://mail.python.org/mailman/listinfo/python-list
Win32.com
Given WinXP. I remove Pythonwin and it seems I lose win32.com. I can't import win32.com Is win32.com bundled with Pythonwin? -- http://mail.python.org/mailman/listinfo/python-list
New comer
Hi all, I'm new comer here -- http://mail.python.org/mailman/listinfo/python-list
Re: AOP and pep 246
On 13 Nov., 15:17, Steve [EMAIL PROTECTED] wrote: AOP was a research that gone nowhere - at least not in its orginal AspectJ form ... I think it might be worth pointing out, though, that there is still significant interest in AOP in the Java community, in the form or interest in the Spring Framework. See, for instance:http://www.onjava.com/pub/a/onjava/2004/07/14/springaop.html This article was written in 2004. It has taken some time for awareness of Spring to penetrate the Java community, but it appears to be happening in a serious way. Yes, I knew about Spring AOP but didn't keep much attention. Is AOP used a lot in the Spring context or is it just a fancy, experimental feature which was just cool to implement at some time? -- Thank-god-I-don't-have-to-learn-all-this-Java-superstructure-stuff- ly yours, As I understand Spring it was part of a liberation wave from J2EE in the Java community: return to POJOs and dependency injection as the main composition technique. Spring is probably not that bad. Steve Ferg -- http://mail.python.org/mailman/listinfo/python-list
Re: why no automatic conversion in string concatenation?
On Tue, Nov 13, 2007 at 07:15:06AM -0800, Michael Pelz Sherman wrote regarding why no automatic conversion in string concatenation?: As a Java PHP developer, I find it kind of annoying that I have to explicitly convert non-string variables to strings when concatenating them, especially when python is quite capable of doing the conversion automatically. i.e.: myBool = True print myBool True print myBool is + myBool Traceback (most recent call last): File stdin, line 1, in module TypeError: cannot concatenate 'str' and 'bool' objects print myBool is + str(myBool) myBool is True Can anyone explain why this is so? Because python doesn't know if '1' + 1 should equal 2 or '11' and would rather you mad that decision. Should it be different than 1 + '1'? or to put it more succinctly, because explicit is better than implicit. In fact, I think it's more often the case that I have string data that I need to treat as integers than the other way around (input from stdin and textfiles for example). Are there any plans to change this in python 3000? I hope not, and I don't think so. Thanks, - Michael No problem. Cheers, Cliff -- http://mail.python.org/mailman/listinfo/python-list
Re: Information manager/organizer with tags question.
[EMAIL PROTECTED] wrote: Hello, [snip outline of an information editor] Maybe the Literary Machine? URL:http://sommestad.com/lm.htm It is a bit weird at first, and Windows only (altough I have had it running under wine once). But it is actually really well designed and very powerful. Or, if it ever comes out (I've been waiting for it for YEARS now), perhaps Ceryle would fit the bill: URL:http://www.altheim.com/ceryle/wiki/ There once was some code to download, but I couldnt get it to compile. The guy who writes the software is a really approachable, nice guy. Maybe if you contact him and politely prod him into finally getting the thing out, nobody will ever need to write any information manager anymore. /W -- http://mail.python.org/mailman/listinfo/python-list
Selamat malem
selamat malem -- http://mail.python.org/mailman/listinfo/python-list
Re: Win32.com
On Nov 13, 9:37 am, goldtech [EMAIL PROTECTED] wrote: Given WinXP. I remove Pythonwin and it seems I lose win32.com. I can't import win32.com Is win32.com bundled with Pythonwin? They are part of the same package. I'm not sure that there are any dependencies. It isn't `win32.com' though, it is `win32com' and more specifically `win32com.client' and `win32com.server' depending on what you want to do. -- http://mail.python.org/mailman/listinfo/python-list
Re: module data member?
Peter J. Bismuti schrieb: This did the trick for the most part, but it still leaves a copy of the variable A in the non-module global namespace (see output below). I want A declared global to the module (so as not to be local within the functions of the module) but not visible outside of the module namespace (like B, see below). How can this be done? It can't, unless you remove the A = 0 from the module and put it into some init function. To quote myself: This of course won't prevent __main__ to be existant, nor running possible initialization code twice. But if the module is supposed to do some work, it will operate on the one data all the other importing modules see. You could of course delete everything in __main__ as well, but then... why do you care about the __main__.A living? Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Win32.com
goldtech wrote: Given WinXP. I remove Pythonwin and it seems I lose win32.com. I can't import win32.com Is win32.com bundled with Pythonwin? Yes. Colin W. -- http://mail.python.org/mailman/listinfo/python-list
Re: New comer
On Nov 13, 11:37 am, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hi all, I'm new comer here Welcome to you! Are you new to programming in Python as well, or just new to this newsgroup? If you are new to Python, you will find a wealth of getting started help at the Python web site, www.python.org, including links to online books and tutorials. There is also the Python tutor mailing list, catering specifically to new Python users - I don't know the link off- hand but you can find it as well at the python site. And as you look about the archives of previous posts to acquaint yourself with the type of discussions you'll find here, let me apologize on behalf of the group for the recent flurry of racist spam - it is the unfortunate but familiar story of a few people ruining a good thing for everybody else. Cheers, -- Paul -- http://mail.python.org/mailman/listinfo/python-list
cmp and sorting non-symmetric types
(I've had trouble getting response for collaboration on a PEP.
Perhaps I'm the only interested party?)
Although py3k raises an exception for completely unsortable types, it
continues to silently do the wrong thing for non-symmetric types that
overload comparison operator with special meanings.
a = set([1])
b = set([2, 5])
c = set([1, 2])
sorted([a, c, b])
[{1}, {1, 2}, {2, 5}]
sorted([a, b, c])
[{1}, {2, 5}, {1, 2}]
To solve this I propose a revived cmp (as per the previous thread[1]),
which is the preferred path for orderings. The rich comparison
operators will be simple wrappers for cmp() (ensuring an exception is
raised if they're not merely comparing for equality.)
Thus, set would need 7 methods defined (6 rich comparisons plus
__cmp__, although it could skip __eq__ and __ne__), whereas nearly all
other types (int, list, etc) need only __cmp__.
Code which uses = to compare sets would be assumed to want subset
operations. Generic containers should use cmp() exclusively.
[1] http://mail.python.org/pipermail/python-3000/2007-October/011072.html
--
Adam Olsen, aka Rhamphoryncus
--
http://mail.python.org/mailman/listinfo/python-list
Re: Convert some Python code to C++
On 2007-11-13, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: On Nov 13, 9:28 am, [EMAIL PROTECTED] wrote: I am working on an implementation of the Longest Common Subsequence problem (as I understand it, this problem can be used in spell checking type activities) and have used this site to understand the problem and its solution: http://en.wikibooks.org/wiki/Algorithm_implementation/Strings/Longest... For those that understand algorithms and can talk Python, I want to convert the Python code in the section Reading out all LCSs into C++ code but I don't understand some of the syntax. Can anyone give me a hand? Here is the code from that section, but is probably of little use without understanding the entire problem setup given at the site above: def backTrackAll(C, X, Y, i, j): if i == 0 or j == 0: return set([]) elif X[i-1] == Y[j-1]: return set([Z + X[i-1] for Z in backTrackAll(C, X, Y, i-1, j-1)]) else: R = set() if C[i][j-1] = C[i-1][j]: R.update(backTrackAll(C, X, Y, i, j-1)) if C[i-1][j] = C[i][j-1]: R.update(backTrackAll(C, X, Y, i-1, j)) return R Thanks! You might try Shed Skin: http://sourceforge.net/projects/shedskin/ It's been a while since I did C++. I would recommend going through a basic C++ tutorial. I'm pretty sure the equivalence operators are almost the same. You'll likely need to declare the types for the arguments passed into the function as well. I think lists are called arrays in C++. I don't know what the set equivalent is though. It is called set, oddly enough. ;) There's an overload of the set::insert function that takes a couple of iterators that will serve for Python's update method. -- Neil Cerutti -- http://mail.python.org/mailman/listinfo/python-list
Re: os walk() and threads problems (os.walk are thread safe?)
Diez B. Roggisch wrote: Marcus Alves Grando wrote: Diez B. Roggisch wrote: Marcus Alves Grando wrote: Hello list, I have a strange problem with os.walk and threads in python script. I have one script that create some threads and consume Queue. For every value in Queue this script run os.walk() and printing root dir. But if i increase number of threads the result are inconsistent compared with one thread. For example, run this code plus sort with one thread and after run again with ten threads and see diff(1). I don't see any difference. I ran it with 1 and 10 workers + sorted the output. No diff whatsoever. Do you test in one dir with many subdirs? like /usr or /usr/ports (in freebsd) for example? Yes, over 1000 subdirs/files. Strange, because to me accurs every time. And I don't know what you mean by diff(1) - was that supposed to be some output? No. One thread produce one result and ten threads produce another result with less lines. Se example below: @@ -13774,8 +13782,6 @@ /usr/compat/linux/proc/44 /usr/compat/linux/proc/45 /usr/compat/linux/proc/45318 -/usr/compat/linux/proc/45484 -/usr/compat/linux/proc/45532 /usr/compat/linux/proc/45857 /usr/compat/linux/proc/45903 /usr/compat/linux/proc/46 I'm not sure what that directory is, but to me that looks like the linux /proc dir, containing process ids. Which incidentially changes between the two runs, as more threads will have process id aliases. My example are not good enough. I run this script in ports directory of freebsd and imap folders in my linux server, same thing. @@ -182,7 +220,6 @@ /usr/ports/archivers/p5-POE-Filter-Bzip2 /usr/ports/archivers/p5-POE-Filter-LZF /usr/ports/archivers/p5-POE-Filter-LZO -/usr/ports/archivers/p5-POE-Filter-LZW /usr/ports/archivers/p5-POE-Filter-Zlib /usr/ports/archivers/p5-PerlIO-gzip /usr/ports/archivers/p5-PerlIO-via-Bzip2 @@ -234,7 +271,6 @@ /usr/ports/archivers/star-devel /usr/ports/archivers/star-devel/files /usr/ports/archivers/star/files -/usr/ports/archivers/stuffit /usr/ports/archivers/szip /usr/ports/archivers/tardy /usr/ports/archivers/tardy/files Regards -- Marcus Alves Grando marcus(at)sbh.eng.br | Personal mnag(at)FreeBSD.org | FreeBSD.org -- http://mail.python.org/mailman/listinfo/python-list
Re: why no automatic conversion in string concatenation?
Thanks Cliff. Not to belabor this point - clearly it's just something I'll have to get used to - but isn't the choice of the + as the concatenation operator part of the problem here? A more explicit choice would have been an append() function, would it not? Or at least a non-ambiguous character. Obviously python *does* know that I'm concatenating, not adding, due to the type of the LH object, and it would save me a lot of time if I didn't have to explicitly convert my objects to strings. Any rule can be abused... - Michael J. Clifford Dyer [EMAIL PROTECTED] wrote: On Tue, Nov 13, 2007 at 07:15:06AM -0800, Michael Pelz Sherman wrote regarding why no automatic conversion in string concatenation?: As a Java PHP developer, I find it kind of annoying that I have to explicitly convert non-string variables to strings when concatenating them, especially when python is quite capable of doing the conversion automatically. i.e.: myBool = True print myBool True print myBool is + myBool Traceback (most recent call last): File , line 1, in TypeError: cannot concatenate 'str' and 'bool' objects print myBool is + str(myBool) myBool is True Can anyone explain why this is so? Because python doesn't know if '1' + 1 should equal 2 or '11' and would rather you mad that decision. Should it be different than 1 + '1'? or to put it more succinctly, because explicit is better than implicit. In fact, I think it's more often the case that I have string data that I need to treat as integers than the other way around (input from stdin and textfiles for example). Are there any plans to change this in python 3000? I hope not, and I don't think so. Thanks, - Michael No problem. Cheers, Cliff -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert some Python code to C++
On Nov 13, 12:51 pm, Neil Cerutti [EMAIL PROTECTED] wrote: On 2007-11-13, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: On Nov 13, 9:28 am, [EMAIL PROTECTED] wrote: I am working on an implementation of the Longest Common Subsequence problem (as I understand it, this problem can be used in spell checking type activities) and have used this site to understand the problem and its solution: http://en.wikibooks.org/wiki/Algorithm_implementation/Strings/Longest... For those that understand algorithms and can talk Python, I want to convert the Python code in the section Reading out all LCSs into C++ code but I don't understand some of the syntax. Can anyone give me a hand? Here is the code from that section, but is probably of little use without understanding the entire problem setup given at the site above: def backTrackAll(C, X, Y, i, j): if i == 0 or j == 0: return set([]) elif X[i-1] == Y[j-1]: return set([Z + X[i-1] for Z in backTrackAll(C, X, Y, i-1, j-1)]) else: R = set() if C[i][j-1] = C[i-1][j]: R.update(backTrackAll(C, X, Y, i, j-1)) if C[i-1][j] = C[i][j-1]: R.update(backTrackAll(C, X, Y, i-1, j)) return R Thanks! You might try Shed Skin: http://sourceforge.net/projects/shedskin/ It's been a while since I did C++. I would recommend going through a basic C++ tutorial. I'm pretty sure the equivalence operators are almost the same. You'll likely need to declare the types for the arguments passed into the function as well. I think lists are called arrays in C++. I don't know what the set equivalent is though. It is called set, oddly enough. ;) There's an overload of the set::insert function that takes a couple of iterators that will serve for Python's update method. -- Neil Cerutti I suspected as much, but I don't think they ever got that far into C++ in the classes I took. I'll have to file that little nugget for future reference. Hopefully the OP is getting something out of this as well. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: why no automatic conversion in string concatenation?
On Nov 13, 2007 1:09 PM, Michael Pelz Sherman [EMAIL PROTECTED] wrote: Thanks Cliff. Not to belabor this point - clearly it's just something I'll have to get used to - but isn't the choice of the + as the concatenation operator part of the problem here? A more explicit choice would have been an append() function, would it not? Or at least a non-ambiguous character. Obviously python *does* know that I'm concatenating, not adding, due to the type of the LH object, and it would save me a lot of time if I didn't have to explicitly convert my objects to strings. Python doesn't *know* that. It could assume that, and it could document that assumption (and you could overload + to do that if you wanted in your own classes), but it chooses not to assume that - you know best what you want to do. A second operator could be used, but since there's no ambiguity (and Python won't guess, so incorrect use is always an error) there doesn't seem to be much gain from doing so. It's quite rare that this actually involves much extra code - you probably want to be using string interpolation (which will convert to str() automatically if you use the %s format character) instead. -- http://mail.python.org/mailman/listinfo/python-list
NumPy Question - numpy.put in multi-dimensional array
from numpy import *
a = zeros((2,40), int)
fields = {}
field = 10
fields[field] = '30A', 5
iy = int(fields[field][1])
ix = int(fields[field][0].rstrip('AB'))
for i in range(2):
for j in range(iy):
#put(a,[39 - j],[1]) #1d
Can someone help me figure out how I would do it for multiple rows?
I thought,
put(a,[i][39-j],[1])
but,
Traceback (most recent call last):
put(a,[i][39 - j],[1])
IndexError: list index out of range
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