Question

List and Boolean output:
The exercise gives you a list and the answer, I must find the missing code:

>>>a_list = [3,5,6,12]
>>>#CODE HERE
[False, False, True, True]

I made a for loop:
for x in a_list:
if x % 2 == 0:
print True
else:
print False
but my output prints as seperate elements:
False
False
True
True
How do I write the code so that it prints the booleans as a list?

Answer 1

Couldn't you just append it to a list, and then print the list?

a_list = [3,5,6,12]
boolean_list=[]
for x in a_list:
if x % 2 == 0:
boolean_list.append(True)
else:
boolean_list.append(False)
print boolean_list

Another way to do it would be to smash it into a string and use list-type syntax, but it's a lot harder and generally not worth the extra code. It would work something like this though:

a_list = [3,5,6,12]
s = '['
for x in a_list:
if x % 2 == 0:
s += str(True) + ','
else:
s += str(False) + ','

print s[0:len(s)-1] + ']'

The first one works so much better though.