Boolean prefix (ARCH2007)

Key python.naming.boolean-prefix · Severity info · Category naming

Boolean-typed members and accessors should carry an interrogative prefix such as is, has, can, or should. Without one, conditionals read poorly and intent becomes unclear.

Incorrect

class Account:
    def __init__(self):
        self.active = True  # boolean but no interrogative prefix
        self.admin = False

Correct

class Account:
    def __init__(self):
        self.is_active = True
        self.is_admin = False

Fix

Add an is/has/can/should prefix to boolean members (e.g. active → is_active).