Thank you all for the input.
I've not been clear in my original question. For each value in the range (in
example 10) I have to perform calculations with the values in the tuple (in
example 3). This makes 30 calculations in total.
In reality I have to do this for a much larger dataset (eg 10000 range * 100000
= a lot), so the for v1, v2 in list_of_tuples doesn't work because it is too
large for it.
Solution 1 works, but the double for-statements seem problematic to me because
if I have to add a 3rd or 4th etc the code becomes unreadable.
I've tried to put it in a def, but:
* Solution 2 is wrong because it only does part of the calculations
* Solution 3 works, but returns it 10 times, so something is wrong with it!
I gues I should go for solution 1, but I prefer one of the def solutions ( 2 or
3) because if I have to add more variables I get a very nested chunk of code
(which I don't understand anymore in a month from now).
list_of_tuples = [(90629, 4644.91), (90706, 4617.87), (90729, 4709.50)]
n = 100
nmax = 110
def perform_calculations1(n, nmax, value, list_of_tuples, ):
# this gives totally wrong results
something = []
for i2 in xrange(n, int(nmax+1)):
for t in list_of_tuples:
v1 = t[0]
v2 = t[1]
something = str(i2) + "\tdoes something for\t" + str(v2)
return something
def perform_calculations2(n, nmax, value, list_of_tuples, ):
#this works too good. It returns 10 times the correct 30 values
something = []
for i2 in xrange(n, int(nmax+1)):
for t in list_of_tuples:
v1 = t[0]
v2 = t[1]
something.append(str(i2) + "\tdoes something for\t" + str(v2))
return something
print "\n\nSolution 1"
for i in xrange(n, int(nmax+1)):
#returns good results
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(i)
print "\n\nSolution 2"
for i in xrange(n, int(nmax + 1)):
#returns wrong results
result = perform_calculations1(n, nmax, i, list_of_tuples, )
print result
print "\n\nSolution 3"
for i in xrange(n, int(nmax + 1)):
print "\n"
#returns good results, but gives it back 10 times!!!
result = perform_calculations2(n, nmax, i, list_of_tuples, )
for r in result:
print r
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