[EMAIL PROTECTED] a écrit : > Hello All, > > I'd greatly appreciate if you can take a look at the task I need help > with. > > It'd be outstanding if someone can provide some sample Python code.
No problem. It's 600 euro per day. Do I send you the contract ? > ------------------------------------------------------------------------------- > Problem > ------------------------------------------------------------------------------- > > I am working with 30K+ record datasets in flat file format (.txt) that > look like this: > > //-+alibaba sinage > //-+amra damian//_9 > //-+anix anire//_ > //-+borom > //-+bokima sun drane > //-+ciren > //-+cop calestieon eded > //-+ciciban > //-+drago kimano sole > > > The records start with the same string (in the example //-+) wich is > followed by another string of characters taht's changing from record > to record. > > I am working on one file at the time and for each file I need to be > able to do the following: > > a) By looping thru the file the program should isolate all records > that have letter a following the //-+ > b) The isolated dataset will contain only records that start with //- > +a > c) Save the isolated dataset as flat flat text file named a.txt > d) Repeat a), b) and c) for all letters of english alphabet (a thru z) > and numerical values (0 thru 9) > This really looks like homework, and asking people to do your homework for you is a pretty bad idea. On most newsgroup, the answer would stop here, but c.l.py is a very friendly place, so I'll give you a couple starting points: 1/ for char in "abc": print "char is %s" % char print "//-+%s" % char 2/ for line in open('somefile'): print line 3/ print "//-+alibaba sinage"[4:] 4/ print "//-+alibaba sinage"[4:].startswith('a') 5/ data = [] data.append("//-+alibaba sinage\n") data.append("//-+amra damian//_9\n") print "".join(data) 6/ f = open('someotherfile.txt', 'w') f.write("line1\nline2\nline3\n") f.close() This is all you need to know to complete your task. -- http://mail.python.org/mailman/listinfo/python-list