Hi kumar

If I unterstood your question correctly, you have to iterate over the refseq 
until 
you get the next entry, which starts with a '>'

on Tue, 18 Jan 2005 20:12:32 -0800 (PST)  kumar s <[EMAIL PROTECTED]> wrote :
---------------------------------------------------------------------------------------------


kumar s > I could not think of any smart way to do this,
kumar s > although I have tried like this:
kumar s > 
kumar s > >>> for ele1 in Lseq:
kumar s >       for ele2 in refseq:
kumar s >               if ele1 in ele2:
kumar s >                       k = ele2
kumar s >                       s = refseq[ele2].startswith('>')

Here you index the list with an element, but the index must be an integer

kumar s >                       print k,s
kumar s > 
kumar s >                       
kumar s > 
kumar s > Traceback (most recent call last):
kumar s >   File "<pyshell#261>", line 5, in -toplevel-
kumar s >     s = refseq[ele2].startswith('>')
kumar s > TypeError: list indices must be integers
kumar s > 
kumar s > 
kumar s > I do not know how to dictate to python to select lines
kumar s > between two > symbols. 
kumar s > 


------------------- end ----------------------
Perhaps this is a possible solution: 

Iteration of Lseq an then looping over all elements in refseq. 
if an element of refseq contains the ele1 the list-entry is printed. 
The nested while-loop print's the refseq -elements as long as the element
does not start with a '>'

for ele1 in Lseq:
        i=0
        while i < len(refseq):
                if ele1 in refseq[i]:
                        print refseq[i]
                        i +=1
                        while not refseq[i].startswith('>'):
                                print refseq[i]
                                i+=1 # increment until the next entry starting 
with '>' is found
                i +=1 # if search should continue if another element is present

HTH Ewald



-- 
Ing. Ewald Ertl         HartterGruppe                   Phone : 
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trinomic Projektmanagement & Informationstechnik GmbH   Fax   : 
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Wiener Straße 41                                        mailto:[EMAIL PROTECTED]
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