Python 3 - Second Edition

3.7    Logical Expressions

In addition to arithmetic operators, there’s a second set of operators that allow comparing values such as numbers:

>>> 3 < 4True  

Here we test if 3 is smaller than 4. The interpreter responds to such comparisons with a truth value—that is, True or False. A comparison is performed using a relational operator—in this case, <.

Table 3.1 contains a list of the relational operators.

Comparison	Meaning
3 == 4	Is 3 equal to 4? Note the double equal sign that distinguishes the comparison from an assignment.
3 != 4	Is 3 different from 4?
3 < 4	Is 3 less than 4?
3 > 4	Is 3 greater than 4?
3 <= 4	Is 3 less than or equal to 4?
3 >= 4	Is 3 greater than or equal to 4?

Table 3.1     ...