wierd problem (problem 3):

this fucttion works well with the original variables : 'atgacatgcacaagtatgcat','atgc' and returns the tuple (5,15)... but when I put different variables (lets say a different key: at) I think it loops. any ideas ?

from string import *
def subStringMatch1(target,key):
length=len(target)
i=0
c=0
tup=()
while c!=-1:
c = find(target,key,i)
if c0:
tup = tup + (c,) # print c
i=c+1
return tup

Question

wierd problem (problem 3):

this fucttion works well with the original variables : 'atgacatgcacaagtatgcat','atgc' and returns the tuple (5,15)... but when I put different variables (lets say a different key: at) I think it loops. any ideas ?

from string import *    
def subStringMatch1(target,key):
    length=len(target)
    i=0
    c=0
    tup=()
    while c!=-1:
        c = find(target,key,i)
        if c>0:           
            tup = tup + (c,) # print c
            i=c+1          
    return tup

anonymous · Answer

the line with the length is not necessary

anonymous · Answer

it should have been c!=-1 instead of >0