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 docs is
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, numarray, and
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 use? If
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 show off, and use a more pythonic interface, you
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')
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
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
IIRC, no. But the setup.py script is fairly easy to hack to link in
your own blas/lapack libraries.
--
http://mail.python.org/mailman/listinfo/python-list
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
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
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.
--
The combinatorics application is very close, since we use A(N) to
represent fermions in quantum mechanics.
--
http://mail.python.org/mailman/listinfo/python-list
Boy, what a snotty answer to a question that had nothing to do with a
homework assignment!
--
http://mail.python.org/mailman/listinfo/python-list
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 invariant.
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
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
Thanks to everyone who responded!! I guess I have to study my regular
expressions a little more closely.
--
http://mail.python.org/mailman/listinfo/python-list
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
Thanks for the link. That completely answers my question.
--
http://mail.python.org/mailman/listinfo/python-list
19 matches
Mail list logo
