shorten path to files

Hi, I need to retrieve the content of some files which are placed on a network drive so in order to open them I need the full path to the file. Unfortunately some times the path is longer than 256 characters and in Windows such a path is too long with the result that the file is not found (though

__init__.py file

Hi, I need to instantiate an object (my_object) whose methods I have to use in two files (file1.py and file2.py) which are in the same directory. Is it possible to instantiate such object in the __init__.py file and then directly use it in file1.py and file2.py? If not, as I seem to experience,

reading a specific column from file

Hi, I have a file containing four columns of data separated by tabs (\t) and I'd like to read a specific column from it (say the third). Is there any simple way to do this in Python? I've found quite interesting the linecache module but unfortunately that is (to my knowledge) only working on

alternating string replace

in advance Cesco -- http://mail.python.org/mailman/listinfo/python-list

help on dictionary

Hi, I have a defaultdict which I have initialized as follows: def train(features): model = collections.defaultdict(lambda: 1) for f in features: model[f] += 1 return model def_dict = train(large_set_of_words) where large_set_of_words is the list of possible strings. I'd

generating list of sub lists

Hi, is there a one-liner to accomplish the following task? From the list l = ['string1', 'string2', 'string3'] generate the list of lists l = [['string1'], ['string1', 'string2'], ['string1', 'string2', 'string3']] Any help would be appreciated. Thanks Francesco --

generate list of partially accumulated values

Hi, I have the following list: l = [1, 2, 3, 4] and I'd like to obtain a list like the following: l_partial_sum = [1, 3, 6, 10] (that is [1, 1+2, 1+2+3, 1+2+3+4]) Is there a simple way to accomplish this? I came up with the following solution but it seems a bit too elaborated for the task:

Re: generate list of partially accumulated values

l = [1, 2, 3, 4] [sum(l[:x+1]) for x in xrange(len(l))] Thanks, actually my problem is a bit more complex (I thought I could get a solution by posting a simplified version...) The list is composed of objects: l = [obj1, obj2, obj3, obj4] and I need to call a method (say method1) on each

escaping only double quotes

Hi, I have a string which is constructed like this: string = Butler's 15\ TV s = my string goes here %s % string the single string, unfortunately, gets escaped which is something I want to avoid because I have to load the data into a database using the json format and I get an invalid escape

Optimization problem

I have a set of N blocks of different lengths. The length of each block is a multiple of a basic unit. The blocks, once lined up, make a path of distance equal to R. Let's say we have 5 blocks with the following lengths: N_set_lengths = (1, 3, 2, 1, 3), then the path we cover by lining them up is

Re: number generator

Since people are posting their solutions now (originally only hints were provided for the homework problem), here's mine: Well, I never really said it was a homework problem. Sure there are more implications to my question that I had first imagined and I'm really happy I could get so many

number generator

I have to generate a list of N random numbers (integer) whose sum is equal to M. If, for example, I have to generate 5 random numbers whose sum is 50 a possible solution could be [3, 11, 7, 22, 7]. Is there a simple pattern or function in Python to accomplish that? Thanks and regards Francesco

Re: number generator

On Mar 9, 3:51 pm, Paul Rubin http://[EMAIL PROTECTED] wrote: cesco [EMAIL PROTECTED] writes: I have to generate a list of N random numbers (integer) whose sum is equal to M. If, for example, I have to generate 5 random numbers whose sum is 50 a possible solution could be [3, 11, 7, 22, 7

Re: recursive function

Hendrik van Rooyen wrote: cesco [EMAIL PROTECTED] wrote: Neil Cerutti wrote: On 2007-01-08, cesco [EMAIL PROTECTED] wrote: Hi, I have a dictionary of lists of tuples like in the following example: dict = {1: [(3, 4), (5, 8)], 2: [(5, 4), (21, 3), (19, 2

recursive function

Hi, I have a dictionary of lists of tuples like in the following example: dict = {1: [(3, 4), (5, 8)], 2: [(5, 4), (21, 3), (19, 2)], 3: [(16, 1), (0, 2), (1, 2), (3, 4)]] In this case I have three lists inside the dict but this number is known only at runtime. I have to write a

Re: recursive function

Neil Cerutti wrote: On 2007-01-08, cesco [EMAIL PROTECTED] wrote: Hi, I have a dictionary of lists of tuples like in the following example: dict = {1: [(3, 4), (5, 8)], 2: [(5, 4), (21, 3), (19, 2)], 3: [(16, 1), (0, 2), (1, 2), (3, 4)]] In this case I have three

matplotlib and numpy installation

Hi, I wanted to install python, numpy and matplotlib on Linux Ubuntu. I installed python with the following commands ./configure --enable-unicode=ucs4 make make install and then I installed numpy running python setup.py install Finally I came to matplotlib, that for the installation requires the

installing numpy

(most recent call last): File numpy/setup.py, line 26, in ? from numpy.distutils.core import setup ImportError: No module named numpy.distutils.core Does anyone know how this module should be installed? Thanks and regards Cesco -- http://mail.python.org/mailman/listinfo/python-list

reading float from binary data file

Hi, I have a binary file containing 1000 floating point numbers. I want to load that file into an array. A way to do it could be the following: import array data = array.array('f') f = open('FileName.bin', 'rb') data.fromfile(f, 1000) Now I have the following problem: if I don't know how