Keywords

Definition

Keywords are reserved words in Python that have a predefined meaning and cannot be used as identifiers, such as variable names or function names. They are integral to the syntax and structure of Python code.

5 Must Know Facts For Your Next Test

1. Python keywords are case-sensitive.
2. There are currently 35 keywords in Python 3.x, including 'if', 'else', 'while', and 'for'.
3. Using a keyword as a variable name will result in a syntax error.
4. Keywords help define the control flow and structure of Python programs.
5. The list of Python keywords can be obtained using the 'keyword' module.

Review Questions

• Why can't you use Python keywords as variable names?
• How can you get a list of all keywords in Python?
• What will happen if you try to use 'for' or 'while' as an identifier?

Related terms

Variable:

A storage location identified by a memory address and an associated symbolic name (an identifier), which contains some known or unknown quantity of information referred to as a value.

Identifier: A name used to identify a variable, function, class, module, or other object in Python; it must follow certain naming rules.

__init__:

__init__ is a special method in classes that is called when an instance (object) of the class is created. It initializes the object's attributes.