Python Tuple cmp() Method

Python Tuple

Description

The Python Tuple cmp() function is used to compare two tuple elements.

Syntax

cmp() method syntax:

cmp(tuple1, tuple2)

Parameters

• tuple1 -- The tuple to compare.
• tuple2 -- The other tuple to compare.

Return Value

If the elements being compared are of the same type, compare their values and return the result.

If the two elements are not of the same type, check whether they are numbers.

• If they are numbers, perform the necessary numeric coercion and then compare.
• If one of the elements is a number, then the other element is "greater" (numbers are the "smallest").
• Otherwise, compare by the alphabetical order of the type names.

If one list reaches the end first, the other longer list is "greater".

If we exhaust the elements of both lists and all elements are equal, then the result is a tie, that is, 0 is returned.

Example

The following example demonstrates the use of the cmp() function:

#!/usr/bin/python

tuple1, tuple2 = (123, 'xyz'), (456, 'abc')

print cmp(tuple1, tuple2);
print cmp(tuple2, tuple1);
tuple3 = tuple2 + (786,);
print cmp(tuple2, tuple3)
tuple4 = (123, 'xyz')
print cmp(tuple1, tuple4)

The output of the above example is as follows:

-1
1
-1
0

Python Tuple