Let's see how list comprehensions work by comparing them to a for loop that performs a similar operation. Enter the following code in a text file or an input cell in a worksheet:
list1 = [' a ', ' b ', 'c ']
list1_stripped = []
for s in list1:
list1_stripped.append(s.strip())
print(list1_stripped)
list1_stripped_2 = [s.strip() for s in list1]
print(list1_stripped_2)
list2 = []
for val in srange(0.0, 10.0, 1.0):
if val % 2 == 0:
list2.append(numerical_approx(val**2, digits=3))
print(list2)
list3 = [numerical_approx(val**2, digits=3) for val in
srange(0.0, 10.0, 1.0) if val % 2 == 0]
print(list3)Run the example. You should get:
