Reverse List/Tuple/String in Python

Python programming language provides a neat syntax to reverse a string, tuple (a read-only list, immutable) or a list (array). The syntax is var[::-1] which returns a reverse copy of the var.

For examples,

a = [1, 2, 3, 4, 5]
print a[::-1] # gives [5, 4, 3, 2, 1]
a = “12345”
print a[::-1]  #gives “54321”
a = (1, 2, 3, 4, 5)
print a[::-1] #gives (5, 4, 3, 2, 1)

a = [1, 2, 3, 4, 5]
print a[::-1] # gives [5, 4, 3, 2, 1]
a = “12345”
print a[::-1]  #gives “54321”
a = (1, 2, 3, 4, 5)
print a[::-1] #gives (5, 4, 3, 2, 1)

Simple and effective!

Here are some more ways to reverse a list, tuple or string in Modern Python: Three ways to Reverse a List/Array/Tuple in Python