7.9. Glossary¶
- block¶
A group of consecutive statements with the same indentation.
- body¶
The block of statements in a compound statement that follows the header.
- boolean expression¶
An expression that is either true or false.
- boolean function¶
A function that returns a boolean value. The only possible values of the
booltype areFalseandTrue.- boolean value¶
There are exactly two boolean values:
TrueandFalse. Boolean values result when a boolean expression is evaluated by the Python interepreter. They have typebool.- branch¶
One of the possible paths of the flow of execution determined by conditional execution.
- chained conditional¶
A conditional branch with more than two possible flows of execution. In Python chained conditionals are written with
if ... elif ... elsestatements.- comparison operator¶
One of the operators that compares two values:
==,!=,>,<,>=, and<=.- condition¶
The boolean expression in a conditional statement that determines which branch is executed.
- conditional statement¶
A statement that controls the flow of execution depending on some condition. In Python the keywords
if,elif, andelseare used for conditional statements.- logical operator¶
One of the operators that combines boolean expressions:
and,or, andnot.- modulus operator¶
An operator, denoted with a percent sign (
%), that works on integers and yields the remainder when one number is divided by another.- nesting¶
One program structure within another, such as a conditional statement inside a branch of another conditional statement.