Re: list of unique non-subset sets

Once again my specs were incomplete. By largest I mean exactly what you pointed out as in sum(map(len, setlist)). I think this might work--sorting of the initial list should do the trick. 1) sort the sets by size (in decending order) 2) put the first (largest) into a new list (Lu) for s in Lnew[1:

Re: list of unique non-subset sets

OK, so I need to be more precise. Given a list of sets, output the largest list of sets (from this list, order does not matter) such that: 1) there is no set that is a PROPER subset of another set in this list 2) no two sets have exactly the same members (100% overlap) Seems like this problem is m

generic text read function

Hi, matlab has a useful function called "textread" which I am trying to reproduce in python. two inputs: filename, format (%s for string, %d for integers, etc and arbitary delimiters) variable number of outputs (to correspond to the format given as input); So suppose your file looked like this s

list of unique non-subset sets

Hi, I have many set objects some of which can contain same group of object while others can be subset of the other. Given a list of sets, I need to get a list of unique sets such that non of the set is an subset of another or contain exactly the same members. Tried to do the following: s1=set(['a'

a wrapper to invoke functions using argument

Hi, support I have a library of function, called mylib.py, in which there are 2 functions 'f1' and 'f2' (1 arguments in either one); Now I want to write a wrapper that will invoke f1 or f2 using the command line argument. So for example, I want to write a function "call.py" and invoke it as pytho

intersection of 2 list of pairs

Hi, I have 2 lists of tuples that look like: E1=[('a','g'),('r','s')] and E2=[('g','a'),('r','q'),('f','h')]. In this tuple, the ordering does not matter, i.e. (u,v) is the same as (v,u). What I want to do is the following: given 2 list of tuples, E1 and E2, I want to create another list with tupl

regular expression: perl ==> python

Hi, i am so use to perl's regular expression that i find it hard to memorize the functions in python; so i would appreciate if people can tell me some equivalents. 1) In perl: $line = "The food is under the bar in the barn."; if ( $line =~ /foo(.*)bar/ ) { print "got <$1>\n"; } in python, I don't

input record seperator (equivalent of "$|" of perl)

Hi, I know that i can do readline() from a file object. However, how can I read till a specific seperator? for exmple, if my files are name profession id # name2 profession3 id2 I would like to read this file as a record. I can do this in perl by defining a record seperator; is there an equivalen

Re: How do I define the search path for personal library

Yes, this is exactly what I wanted--just like in perl I can add search path to @inc. thanks -- http://mail.python.org/mailman/listinfo/python-list

How do I define the search path for personal library

Dear all, i have a simple question. Suppose I have my classes such as myClass1.py myClass2.py etc which I keep in a special folder ~/py_libs Now suppose I have a program that is not in py_libs but I want to do import myClass1 # note: myClass1 is not in the current directory how can I set the sear

Re: how do I "peek" into the next line?

I should have also said that I am using the same file handle. So suppose the file handle is fp then I read some lines from fp and I hand it over to other functions that read other things from fp (in an ordered manner). les -- http://mail.python.org/mailman/listinfo/python-list

Re: how do I "peek" into the next line?

OK, I am sorry , I did not explain my problem completely. I can easily break from the loop when I see the character in a line that I just read; however my problem involves putting back the line I just read since if I have seen this special character, I have read one line too many. Let me illustrate

how do I "peek" into the next line?

Hi, suppose I am reading lines from a file or stdin. I want to just "peek" in to the next line, and if it starts with a special character I want to break out of a for loop, other wise I want to do readline(). Is there a way to do this? for example: while 1: line=stdin.peek_nextline() if not line: