Page 197 - Data Science Algorithms in a Week

Python Reference

Output:

$ python example09_if_else_elif.py
The variable x is equal to 10.
The variable x is not greater than 20.
The variable x is not greater than 10, but greater than 5.

For loop

For loop enables the iteration through every element in some set of elements, e.g. range,
python set, list.

For loop on range

Input:

source_code/appendix_c_python/example10_for_loop_range.py
print "The first 5 positive integers are:"
for i in range(1,6):
print i
Output:

$ python example10_for_loop_range.py
The first 5 positive integers are:
1
2
3
4
5

For loop on list

Input:

source_code/appendix_c_python/example11_for_loop_list.py
primes = [2, 3, 5, 7, 11, 13]
print 'The first', len(primes), 'primes are:'
for prime in primes:
print prime

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