[Tutor] subprocessor startup error
I have a problem when openning python (GUI) , There is a message "IDLE's subprocessor didn't make connection." ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] reading large text file as numpy array
Jaidev Deshpande wrote: > I have a large text file with more than 50k lines and about 784 floats in > each line. > > How can I read the whole file as a single numpy array? Have you tried numpy.loadtxt()? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] subprocessor startup error
"anulavidyalaya" wrote I have a problem when openning python (GUI) , There is a message "IDLE's subprocessor didn't make connection." Which version of Python on which Operating System? This may be a firewall issue but I thought they had fixed that in recent versions of Python... Alan G. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Concatenating string
On 23/02/2011 3.02, tee chwee liong wrote: hi Francesco, couldnt get hex of bin working on IDLE Python 2.5 when i type: >>> hex(0b1001001001001001001) SyntaxError: invalid syntax >>> bin(0x49249) Traceback (most recent call last): File "", line 1, in bin(0x49249) NameError: name 'bin' is not defined pls advise. Python 2.5 had no built-in binary conversion tools. bin() was introduced in 2.6. The interesting questions are: 1- are you SURE you were using 2.5 yesterday? If so: 2- did you import some modules? Which ones? On my phone I have Python 2.5 too, and it gives the same errors to me. Is it possible that you upgrade to 2.6 or 2.7 ? thanks tcl You're welcome! FAL - Nessun virus nel messaggio. Controllato da AVG - www.avg.com Versione: 10.0.1204 / Database dei virus: 1435/3460 - Data di rilascio: 22/02/2011 ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] subprocessor startup error
anulavidyalaya wrote: I have a problem when openning python (GUI) , There is a message "IDLE's subprocessor didn't make connection." Google is your friend. http://www.google.co.uk/search?hl=en&q=IDLE%27s+subprocess+didn%27t+make+connection (By the way, don't re-type error messages, if you can avoid it. Copy and paste them. If you must re-type them, make sure you type them correctly -- it's not "subprocessor", but subprocess.) What version of Python are you using, what operating system, what have you already tried? -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Concatenating string
On Tue, Feb 22, 2011 at 9:02 PM, tee chwee liong wrote: > hi Francesco, > > couldnt get hex of bin working on IDLE Python 2.5 when i type: > > >>> hex(0b1001001001001001001) > SyntaxError: invalid syntax > >>> bin(0x49249) > > Traceback (most recent call last): > File "", line 1, in > bin(0x49249) > > NameError: name 'bin' is not defined > > pls advise. > > thanks > tcl > > > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > > bin is new in 2.6 .. check your version -- Joel Goldstick ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Concatenating string
> The interesting questions are: > 1- are you SURE you were using 2.5 yesterday? > If so: > 2- did you import some modules? Which ones? > On my phone I have Python 2.5 too, and it gives the same errors to me. > > Is it possible that you upgrade to 2.6 or 2.7 ? > hi, yes i'm sure using Python 2.5 because that's the only version i have. however i was playing around on how to convert hex to bin, can't remember whether imported special module. anyway here is the code that converts hex to bin: import binascii def byte_to_binary(n): return ''.join(str((n & (1 << i)) and 1) for i in reversed(range(8))) def hex_to_binary(h): return ''.join(byte_to_binary(ord(b)) for b in binascii.unhexlify(h)) array0 = '000a0003c03c1f80' a=hex_to_binary(array0) print "a:",a thanks tcl ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Convert bin to hex
hi, i have a script that converts hex to bin and bin to hex back. however, when converting back to hex the leading 0s are truncated. how to maintain the leading 0s? tq import binascii import string def byte_to_binary(n): return ''.join(str((n & (1 << i)) and 1) for i in reversed(range(8))) def hex_to_binary(h): return ''.join(byte_to_binary(ord(b)) for b in binascii.unhexlify(h)) def bintohex(s): return ''.join([ "%x"%string.atoi(bin,2) for bin in s.split() ]) array0 = '000a0003c03c1f80' a=hex_to_binary(array0) print "Convert array0 to bin:",a print "Convert array0 back to hex:",bintohex(a) if bintohex(a)==array0: print "Match" else: print "Not match" #result## >>> Convert array0 to bin: 1010001111011000 Convert array0 back to hex: a0003c03c1f80 Not match >>> ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Trouble installing numpy on QNX
I'm currently using QNX 6.4.1 with Python 2.5. I went to install numpy 1.4.1, but the install kicks bakc an error saying that it cannot find Python.h and that I should install python-dev|python-devel. I look online and I can only find those two packages in relation to Ubuntu, which obviously will not work. Has anyone experienced this or know what's up? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] PCA on sparse matrices, tolerance of eigenvalues
Dear all, I tried using the 'scipy.sparse.eigs' tool for performing principal component analysis on a matrix which is roughly 80% sparse. First of all, is that a good way to go about it? Second, the operation failed when the function failed to converge on accurate eigenvalues. I noticed the 'tol' attribute in the function, but how does one define a reasonable tolerance and calculate it? Thanks ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] PCA on sparse matrices, tolerance of eigenvalues
"Jaidev Deshpande" wrote I tried using the 'scipy.sparse.eigs' tool for performing principal component analysis on a matrix which is roughly 80% sparse. First of all, is that a good way to go about it? Umm, I remember the term eigenvalue from University math. Other than that the first sentence could be in Chinese! :-) I suspect you might get a better resoponse on a scipy or numpy mailing list or forum. Although there are a few users of that here it sounds like your queries are likely to be more scipy oriented than general Python. There is a list of options here: http://www.scipy.org/Mailing_Lists Second, the operation failed when the function failed to converge on accurate eigenvalues. I noticed the 'tol' attribute in the function, but how does one define a reasonable tolerance and calculate it? Sorry, I understand the sentence this time but again its more a scipy question than a Python one. Alan G. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Convert string to long
hi, is there a way to convert from string to long? for eg: i want to concatenate all the arrays into data and make it same type (long) as data1. code: a='0x' array0 = '00180400' array1 = '' array2 = 'fe00' array3 = '00ff' data = a+array0+array1+array2+array3 print data print type(data) data1 = 0x00180400feff print type(data1) ###result: 0x00180400feff ## thanks tcl ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] licensing python work?
Hi all, This is not strictly on topic and probably has a very obvious answer, but I want to make sure I do it right. How do I license something I write? I have that Bookshare wrapper done, at least as far as I can tell, and I want to give it to Bookshare so they can provide it to whomever wants it. Basically, anyone can copy or modify it in any way, in part or in whole, whether they make money off it or not. Realistically it seems pointless to make a big deal out of someone making money off of this wrapper since it is only a few hundred lines. What license do you recommend, and do I just point people to the license in a comment in the code, or is there something else I have to do? Thanks. -- Have a great day, Alex (msg sent from GMail website) mehg...@gmail.com; http://www.facebook.com/mehgcap ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] licensing python work?
If you don't care how people use it at all, just release your code into the public domain, then it doesn't matter how they use it. HTH, Wayne On Wed, Feb 23, 2011 at 8:38 PM, Alex Hall wrote: > Hi all, > This is not strictly on topic and probably has a very obvious answer, > but I want to make sure I do it right. How do I license something I > write? I have that Bookshare wrapper done, at least as far as I can > tell, and I want to give it to Bookshare so they can provide it to > whomever wants it. Basically, anyone can copy or modify it in any way, > in part or in whole, whether they make money off it or not. > Realistically it seems pointless to make a big deal out of someone > making money off of this wrapper since it is only a few hundred lines. > What license do you recommend, and do I just point people to the > license in a comment in the code, or is there something else I have to > do? Thanks. > > -- > Have a great day, > Alex (msg sent from GMail website) > mehg...@gmail.com; http://www.facebook.com/mehgcap > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] licensing python work?
Read the licenses, and see which one fits your needs, or just put your own conditions at the top of each file. They can use it under your stated terms. http://www.google.com/search?client=ubuntu&channel=fs&q=open+source+licensing&ie=utf-8&oe=utf-8 On Wed, Feb 23, 2011 at 10:05 PM, Wayne Werner wrote: > If you don't care how people use it at all, just release your code into the > public domain, then it doesn't matter how they use it. > HTH, > Wayne > > On Wed, Feb 23, 2011 at 8:38 PM, Alex Hall wrote: >> >> Hi all, >> This is not strictly on topic and probably has a very obvious answer, >> but I want to make sure I do it right. How do I license something I >> write? I have that Bookshare wrapper done, at least as far as I can >> tell, and I want to give it to Bookshare so they can provide it to >> whomever wants it. Basically, anyone can copy or modify it in any way, >> in part or in whole, whether they make money off it or not. >> Realistically it seems pointless to make a big deal out of someone >> making money off of this wrapper since it is only a few hundred lines. >> What license do you recommend, and do I just point people to the >> license in a comment in the code, or is there something else I have to >> do? Thanks. >> >> -- >> Have a great day, >> Alex (msg sent from GMail website) >> mehg...@gmail.com; http://www.facebook.com/mehgcap >> ___ >> Tutor maillist - Tutor@python.org >> To unsubscribe or change subscription options: >> http://mail.python.org/mailman/listinfo/tutor > > > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > > -- According to theoretical physics, the division of spatial intervals as the universe evolves gives rise to the fact that in another timeline, your interdimensional counterpart received helpful advice from me...so be eternally pleased for them. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] comparing strings
Hi, I'm new to the list and programming. i have a question, why when i evaluate strings ie 'a' > '3' it reports true, how does python come up with that? Regards, Edward ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] comparing strings
On 02/23/2011 10:22 PM, Edward Martinez wrote:
> Hi,
>
> I'm new to the list and programming.
> i have a question, why when i evaluate strings ie 'a' > '3' it reports
> true, how does python come up with that?
Welcome! As far as I know, it compares the value of the ord()'s.
>>>ord('a')
97
>>>ord('3')
51
This is their number in the ASCII system. You can also do this:
>>>chr(97)
'a'
>>>chr(51)
'3'
--
Corey Richardson
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[Tutor] accessing another system's environment
I know that I can use the following to get a listing of the environment of my own system. How can I do similar for another system on my network. This is for administrative purposes. >>> import os >>> for param in os.environ.keys(): print(param, os.environ[param]) --Bill ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] comparing strings
On 02/23/11 19:29, Corey Richardson wrote:
On 02/23/2011 10:22 PM, Edward Martinez wrote:
Hi,
I'm new to the list and programming.
i have a question, why when i evaluate strings ie 'a'> '3' it reports
true, how does python come up with that?
Welcome! As far as I know, it compares the value of the ord()'s.
ord('a')
97
ord('3')
51
This is their number in the ASCII system. You can also do this:
chr(97)
'a'
chr(51)
'3'
Hi,
Thank you!. I better read on ASCII and unicode and try a few using
char() and ord().
Regards,
Edward
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Re: [Tutor] licensing python work?
I'd recommend the Apache license, for BSD/X11/MIT type permissive licensing, because it's compatible with contributions to Python (maybe not this code, but you might want to contribute something else in the future). http://wiki.python.org/moin/PythonSoftwareFoundationLicenseFaq#Contributing_Code_to_Python http://www.opensource.org/licenses/apache2.0.php Cheers On Wednesday 23 February 2011, Alex Hall wrote: > Hi all, > This is not strictly on topic and probably has a very obvious answer, > but I want to make sure I do it right. How do I license something I > write? I have that Bookshare wrapper done, at least as far as I can > tell, and I want to give it to Bookshare so they can provide it to > whomever wants it. Basically, anyone can copy or modify it in any way, > in part or in whole, whether they make money off it or not. > Realistically it seems pointless to make a big deal out of someone > making money off of this wrapper since it is only a few hundred lines. > What license do you recommend, and do I just point people to the > license in a comment in the code, or is there something else I have to > do? Thanks. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] licensing python work?
Remember to check the licenses of what your wrapper utilizes. According to theoretical physics, the division of spatial intervals as the universe evolves gives rise to the fact that in another timeline, your interdimensional counterpart received helpful advice from me...so be eternally pleased for them. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] licensing python work?
And in the end it is called open source, for a reason, so if you're not worried, just throw your name at the top, and don't even use a license, unless you want your name to be kept, in which case you might want to include"whether copied in whole, or part". We all scavenge for examples, until we can do it ourselves, and even then, when working with multiple interlanguage processes, you need libraries of functions, references and examples to "vulturize". ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] licensing python work?
Invoking the public domain isn't as simple as you might naively think. Tread with care! http://www.linuxjournal.com/article/6225 Cheers On Wednesday 23 February 2011, Wayne Werner wrote: > If you don't care how people use it at all, just release your code into the > public domain, then it doesn't matter how they use it. > > HTH, > Wayne > > On Wed, Feb 23, 2011 at 8:38 PM, Alex Hall wrote: > > Hi all, > > This is not strictly on topic and probably has a very obvious answer, > > but I want to make sure I do it right. How do I license something I > > write? I have that Bookshare wrapper done, at least as far as I can > > tell, and I want to give it to Bookshare so they can provide it to > > whomever wants it. Basically, anyone can copy or modify it in any way, > > in part or in whole, whether they make money off it or not. > > Realistically it seems pointless to make a big deal out of someone > > making money off of this wrapper since it is only a few hundred lines. > > What license do you recommend, and do I just point people to the > > license in a comment in the code, or is there something else I have to > > do? Thanks. > > > > -- > > Have a great day, > > Alex (msg sent from GMail website) > > mehg...@gmail.com; http://www.facebook.com/mehgcap > > ___ > > Tutor maillist - Tutor@python.org > > To unsubscribe or change subscription options: > > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] licensing python work?
That's why I said to check the licenses from what you work upon(that gives more insight into what license you should use, and how you use it). More and more it's just docs, and functions for me, but initially, all of your "great" beginner projects, utilize what you find, and tutorials online are usually just that - scavengable. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] licensing python work?
Thanks, everyone, for the feedback. I went with the suggestion of adding my name to it, mentioning that I am not responsible for anything that happens, a request for credit somewhere in an application that uses the wrapper (though not a requirement), and that's pretty much it. I think this thing has about five hundred lines, so it is nothing too big, but hopefully it will help someone in the future who goes googling for a python implementation of the Bookshare api. Now to send it off... On 2/23/11, David Hutto wrote: > That's why I said to check the licenses from what you work upon(that > gives more insight into what license you should use, and how you use > it). More and more it's just docs, and functions for me, but > initially, all of your "great" beginner projects, utilize what you > find, and tutorials online are usually just that - scavengable. > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > -- Have a great day, Alex (msg sent from GMail website) mehg...@gmail.com; http://www.facebook.com/mehgcap ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
