On Feb 27, 12:08 pm, "Sriram" <[EMAIL PROTECTED]> wrote:
> Hi,
>
> If you have experience programming, just read the online tutorial
> athttp://docs.python.org/tut/tut.html
>
Seconded. It really is a wonderful introduction to Python. Once you've
digested that, the Python Library Reference in the
On Feb 15, 11:23 pm, "Frank" <[EMAIL PROTECTED]> wrote:
> On Feb 15, 4:40 pm, "Christian Convey" <[EMAIL PROTECTED]>
> wrote:
>
> > I need to bang out an image processing library (it's schoolwork, so I
> > can't just use an existing one). But I see three libraries competing
> > for my love: numpy,
On Feb 15, 5:40 pm, "Christian Convey" <[EMAIL PROTECTED]>
wrote:
> I need to bang out an image processing library (it's schoolwork, so I
> can't just use an existing one). But I see three libraries competing
> for my love: numpy, numarray, and numeric.
>
> Can anyone recommend which one I should
Amazing! There were lots of great suggestions to my original post, but
I this is my favorite.
Rick
Fredrik Lundh wrote:
> RickMuller wrote:
>
> > I'm posting this here because (1) I'm feeling smug at what a bright
> > little coder I am
>
> if you want to
Wow! 6 responses in just a few minutes. Thanks for all of the great
feedback!
[EMAIL PROTECTED] wrote:
> Rick> def parseline(line,format):
> Rick> xlat = {'x':None,'s':str,'f':float,'d':int,'i':int}
> Rick> result = []
> Rick> words = line.split()
> Rick> for i in
One of my all-time favorite scripts is parseline, which is printed
below
def parseline(line,format):
xlat = {'x':None,'s':str,'f':float,'d':int,'i':int}
result = []
words = line.split()
for i in range(len(format)):
f = format[i]
trans = xlat.get(f,'None')
if
I really appreciate the ease that the distutils make distributing
Python modules. However, I have a question about using them to
distribute non-Python (i.e. text) data files that support Python
modules. Currently when I have data of this type, I parse it into
python objects and make a python module
IIRC, no. But the setup.py script is fairly easy to hack to link in
your own blas/lapack libraries.
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>> 3. Of what practical use (or even esoteric academic interest) is the
>> parity of the number of interchanges?
>I presume the goal is academic, determining whether a >permutation is
a member of
>the alternating group of even permutations (A4, A5, ...). For >some
problems,
>that is a useful inva
Boy, what a snotty answer to a question that had nothing to do with a
homework assignment!
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The combinatorics application is very close, since we use A(N) to
represent fermions in quantum mechanics.
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Thanks, this will indeed work. I guess I've gotten out of the habit of
writing cmp functions since Tim Peter's introduction to the sorting
chapter in the first edition of the Python Cookbook convinced me it was
inefficient. But the lists should be short here and this should work.
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Well, it's a homework problem in the sense that I happen to be working
on it at my home, but, no, I'm not in school anymore. In Quantum
Mechanics we use determinants to enforce the Pauli principle, which
says that anytime two electrons are exchanged the wave function has to
change sign. In most Qua
I have to sort a list, but in addition to the sorting, I need to
compute a phase factor that is +1 if there is an even number of
interchanges in the sort, and -1 if there is an odd number of
interchanges.
I could write a bubble sort, count the number of interchanges, and
compute the factor, but I
I had a question about the second edition of the Python Cookbook. I own
and have thoroughly enjoyed the first edition of the Python Cookbook.
How much of the second edition is new? Is this "essential reading" if I
already have the first edition? I realize that there are new sections
that describe l
Thanks to everyone who responded!! I guess I have to study my regular
expressions a little more closely.
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I'm trying to split a string into pieces on whitespace, but I want to
save the whitespace characters rather than discarding them.
For example, I want to split the string '12' into ['1','','2'].
I was certain that there was a way to do this using the standard string
functions, but I just sp
Thanks for the link. That completely answers my question.
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I was talking to a friend of mine about the speed of Python code. One
of the questions that came up was why is a JIT compiler like Psyco
faster than the Python byte-compiler? I understand why languages like
Pyrex are faster, since they set static types that the compiler can use
to optimize. But why
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