I'm having problems with iterations and loops. So I'm curious about the best Python-way to do iterations of lists (in if, while etc statements) and breaking of loops.
I have a list of tuples with 2 values. I want to perform calculations on all of these for each value in a range of values (e.g. 100 to 110). list_of_tuples = [(90629, 4644), (90706, 4617), (90729, 4709)] #start value n = 100 #maximum value nmax = 110 #First I create a list for the values range_list = [] while n < int(nmax+1): range_list.append(n) n = n + 1 print range_list for i in range_list: for t in list_of_tuples: val1 = t[0] val2 = t[1] print "do stuff with\t" + str(val1) + '\t' + str(val2) + \ '\tfor rangevalue\t' + str(i) But I think that the rangelist is not needed and it can be done better (and faster for large quantities of data). I think it's better to have somethng like the code below. But I'm having problems with breaking the second loop and returning to the first loop. If I put in another while-statement befor the for-statement it stops after 1 run and it has to continue until the end of the range. while n < int(nmax + 1): #create new variable to count in 2nd loop n1 = n print '\n' for t in list_of_tuples: val1 = t[0] val2 = t[1] print "do stuff with\t" + str(val1) + '\t' + str(val2) + \ '\tfor range\t' + str(n1) n1 = n1 + 1
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