🌐 Mailman 3 December 2006 - Python-list - python.org

Re: How do I print a numpy array?
by Grant Edwards Dec. 2, 2006

Dec. 2, 2006

On 2006-12-02, Robert Kern <robert.kern(a)gmail.com> wrote: > Grant Edwards wrote: >> On 2006-12-01, Robert Kern <robert.kern(a)gmail.com> wrote: >>> Grant Edwards wrote: >>>> How do you print a numpy array? >> >>> You might want to ask numpy questions on the numpy list: >>> >>> http://www.scipy.org/Mailing_Lists >> >> I tried, but it doesn't seem to be available through gmane.org. > > Yes, it is. > > http://dir.gmane.org/gmane.comp.python.numeric.general I was looking for the "numpy-discussion" mailing list. It didn't occur to me that it was spelled "numeric.general". -- Grant Edwards grante Yow! Th' MIND is the Pizza at Palace of th' SOUL visi.com

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converting dict to object
by rieh25 Dec. 2, 2006

Dec. 2, 2006

If I have a dictionary such as: d = {'a' : 1, 'b' : 2} is there a way to convert it into an object o, such as: o.a = 1 o.b = 2 thanks -- View this message in context: http://www.nabble.com/converting-dict-to-object-tf2741429.html#a7649225 Sent from the Python - python-list mailing list archive at Nabble.com.

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Re: How do I print a numpy array?
by Beliavsky Dec. 2, 2006

Dec. 2, 2006

Robert Kern wrote: > Grant Edwards wrote: > > How do you print a numpy array? > > > > I tried the obvious print a, print `a`, and print str(a), but > > none of them work on anything other than trivially small > > arrays. Most of my real data is elided and replaced with > > ellipses. > > You might want to ask numpy questions on the numpy list: > > http://www.scipy.org/Mailing_Lists > > Use numpy.set_printoptions(threshold=sys.maxint) to disable all summarization. When I print an array in any language, I (and I think most programmers) expect by default to have all elements displayed. Matlab, R, and Fortran 95 have somewhat similar arrays to numpy, and that is what they do. I don't remember Numeric summarizing arrays by default. R has a "summary" function as well as a "print" function.

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Re: How do I print a numpy array?
by Grant Edwards Dec. 2, 2006

Dec. 2, 2006

On 2006-12-01, Robert Kern <robert.kern(a)gmail.com> wrote: > Grant Edwards wrote: >> How do you print a numpy array? > You might want to ask numpy questions on the numpy list: > > http://www.scipy.org/Mailing_Lists I tried, but it doesn't seem to be available through gmane.org. > Use numpy.set_printoptions(threshold=sys.maxint) to disable > all summarization. Thanks. -- Grant Edwards grante Yow! I've got to get at these SNACK CAKES to NEWARK visi.com by DAWN!!

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Re: Take the $million challenge: Prove 911 conspriracy theorists are wrong
by st911＠rock.com Dec. 2, 2006

Dec. 2, 2006

I found this nice dialog on the internet: ===================================== > Well, if you want to convice me, just answer these questions: If you can prove that the official explanation is correct, what's keeping you from collecting a MILLION dollars? Even if you're too wealthy to bother, you could donate the proceeds to the Aryan Nation or the John Birch Society. > 1. How much explosives were used and what type? Thermate/thermite have been discovered in chemical tests, and evidence of its use is plainly visible in photographic an video evidence from the WTC buildings on 9/11. Thermate does not cause millions of tones of concrete to become pulverized into dust in mid-air (as video evidence clearly shows), so another high-energy explosive must have also been used. Now that we have positive proof that explosives were used, and once the secondary compounds have been discovered, the quantities and placement can be estimated from examinations of the video and photo evidence. > 2. How many people were needed to prepare the building for demolition? Irrelevant to the established fact that explosives were used. Will be determined in the new investigation. BTW: It's "buildings," not "building." Did you realize that *three* WTC towers collapsed on 9/11/01, despite only 2 buildings being hit by jets? Most Americans don't realize this obvious fact. Why? > 3. How long did it take to prepare the buildings for demolition? Irrelevant to the established fact that explosives were used. Once the identities of the conspirators are discovered in a new investigation, the timeline can be established. (That's what investigators do.) > 4. How many people had to be bribed and how much were they bribed to > keep silent about the preparations? Irrelevant to the established fact that explosives were used. Those conspirators (whether bribed or not) that are still alive must be discovered and convicted for their crimes, which may include conspiracy to commit treason. The only way to bring the criminals to justice is to open a new investigation which will examine *all* relevant evidence, including sequestered videos, audio tapes, and classified documents. Everybody with an IQ above room temperature knows that the 9/11 Commission report was a whitewash, which didn't even attempt to lay blame at the feet of military and civilian officials who were asleep at the wheel on 9/11/01. It proves that Bush is not serious about national security.

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Fun with with
by Klaas Dec. 1, 2006

Dec. 1, 2006

Occasionally I find myself wanting a block that I can break out of at arbitrary depth--like java's named break statements. Exceptions can obviously be used for this, but it doesn't always look nice. The with statement can be used to whip up something quite usable: class ExitBlock(object): """ A context manager that can be broken out of at an arbitrary depth, using .exit() """ def __init__(self): class UniqueException(BaseException): pass self.breakExc = UniqueException def exit(self): raise self.breakExc() def __enter__(self): return self def __exit__(self, t, v, tb): return t is self.breakExc Now the most important thing here is that each exit block creates a unique exception type. If you have philosophical issues with creates unboundedly many type objects, you can use unique instances too. This allows named break-out-able blocks: with ExitBlock() as ex1: with ExitBlock() as ex2: with ExitBlock() as ex3: while True: ex2.exit() print 'not displayed' print 'execution proceeds here from ex2.exit()' while True: for x in xrange(sys.maxint): while True: ex1.exit() print 'not displayed' print 'execution proceeds here from ex1.exit()' The only danger is bare except (or except BaseException) inside the block. -Mike

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How do I print a numpy array?
by Grant Edwards Dec. 1, 2006

Dec. 1, 2006

How do you print a numpy array? I tried the obvious print a, print `a`, and print str(a), but none of them work on anything other than trivially small arrays. Most of my real data is elided and replaced with ellipses. -- Grant Edwards grante Yow! I want to kill at everyone here with a cute visi.com colorful Hydrogen Bomb!!

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Re: route planning
by Jon Clements Dec. 1, 2006

Dec. 1, 2006

It's not really what you're after, but I hope it might give some ideas (useful or not, I don't know). How about considering a vertex as a point in space (most libraries will allow you to decorate a vertex with additonal information), then creating an edge between vertices, which will be your 'path'. You can then decorate the edge with information such as distance/maximum speed etc... Then all you need to do is use an A* path algorithm or shortest path search to get the shortest / most efficient route.... You might need a custom visitor to suit the 'weight'/'score' of how efficient the path is. I know this probably isn't of much help, but I hope it comes in useful; I've only ever used Boost.Graph (which is C++, but I believe it has a Python binding) and that was for something else -- although I do recall it had examples involving Kevin Bacon and dependency tracking etc... so a good old Google might do you some good -- ie, it's not completely related, but it might give you a few extra things to search on... All the best with the search. Jon. PS. If you do find a library, can you let me know? I'd be interested in having a play with it...

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Detecting recursion loops
by robert Dec. 1, 2006

Dec. 1, 2006

My code does recursion loops through a couple of functions. Due to problematic I/O input this leads sometimes to "endless" recursions and after expensive I/O to the Python recursion exception. What would be a good method to detect recursion loops and stop it by user-Exception (after N passes or some complex criteria) without passing a recursion counter parameter through all the funcs? Robert

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Re: v2.3, 2.4, and 2.5's GUI is slow for me
by Duncan Booth Dec. 1, 2006

Dec. 1, 2006

g4rlik <lorenlightng(a)gmail.com> wrote: > No one can help? This is seriously bugging me to no end. >> My problem is..the GUI for versions 2.3, 2.4, and 2.5 of Python run >> very sluggishly. When I type in them or move them around my desktop, >> it's very slow. I have figured out that this is because of the >> subprocesses running. Always slow or just sometimes? Idle can get very slow if you have generated a lot of output in the shell window, but usually it performs just fine. If you've accidentally printed "range(100000)" then your best best is to kill it and restart. Use idle for development and testing: its best if you run actual scripts outside the development environment.

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