Comparison operators

Like any other language, Python also supports comparison operators. Comparison operators return True or False:

Some examples of comparison operators and their outcome are shown in the following screenshot:

Let's evaluate the following expression:

a < b < = c is equivalent to a<b and b<=c 

Here, the and operator is used, b is evaluated only once, and c will not be evaluated if a < b is found False:

In the preceding example, 12<5 is evaluated first; if it is False, then the next expression will not be evaluated. If the operands are of different types, then they are converted to a common type. Otherwise, the == and != operators always consider objects of different types to be unequal.

Let's look at two different scenarios where we try to evaluate a float data type with an int data type, as shown:

Here, the operator evaluates to True in both the cases, as the interpreter converts one data type to another and then compares both the values.

Comparison between different data types:

• Numbers are compared arithmetically
• Strings are compared as per the alphabetical order, using the numeric equivalents
• Tuples and lists are compared according to the alphabetical order using the comparison of corresponding elements, which we will see in the coming chapters