Adventures in Python:
List Manipulation
This program creates two lists, one from 0 to 11, the other
from 12 to 23. Lists are enclosed by
square brackets ( [ ] ). Here is a short
demo script.
# Program 004: List manipluation
# Start with a range
of 0 to 11
list1 =
list(range(12))
# Let a second list
range from 12 to 23
list2 =
list(range(12,24))
print(list1)
print(list2)
# reverse the order
# use sorted in
Python 3
print("Reverse
List Elements")
list3 =
sorted(list1, reverse=True)
list4 =
sorted(list2, reverse=True)
print(list3)
print(list4)
# combine two (or
more) lists
print("Combine
lists with + ")
list5 = list1 +
list2
print(list5)
# print the first
two elements of each elements
print("First
two elements of each list")
for k in range
(0,2):
a = list1[k]
b = list2[k]
print([a,b])
# sums, minimum, and
maximum of each list
print("Sum,
minimum, and maximum of each list")
print("Sum :
",sum(list1),sum(list2))
print("Minimum
: ",min(list1),min(list2))
print("Maximum
: ",max(list1),max(list2))
Output:
[0, 1, 2,
3, 4, 5, 6, 7, 8, 9, 10, 11]
[12, 13,
14, 15, 16, 17, 18, 19, 20, 21, 22, 23]
Reverse
List Elements
[11, 10,
9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
[23, 22,
21, 20, 19, 18, 17, 16, 15, 14, 13, 12]
Combine
lists with +
[0, 1, 2,
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]
First two
elements of each list
[0, 12]
[1, 13]
Sum,
minimum, and maximum of each list
Sum
: 66 210
Minimum
: 0 12
Maximum
: 11 23
Coming up, combinations and permutations, random numbers,
and plotting.
Eddie
This blog is property of Edward Shore, 2017
